diff --git a/.github/workflows/qctools.yml b/.github/workflows/qctools.yml index 21572d93d..2053db02e 100644 --- a/.github/workflows/qctools.yml +++ b/.github/workflows/qctools.yml @@ -8,10 +8,10 @@ jobs: strategy: matrix: - compiler: ['clang-9'] + compiler: ['clang-18'] include: - - compiler: clang-9 - packages: llvm@15 + - compiler: clang-18 + packages: llvm@18 env: { 'CC': 'clang', 'CXX': 'clang++' } runs-on: macos-latest @@ -19,9 +19,9 @@ jobs: env: ${{ matrix.env }} steps: - - uses: actions/checkout@v2 + - uses: actions/checkout@v5 with: - fetch: 1 + fetch-depth: 1 - name: Checkout submodules shell: bash @@ -35,7 +35,7 @@ jobs: - name: Install dependencies run: | - brew install ${{ matrix.packages }} pkg-config ffmpeg@6 qt@5 + brew install ${{ matrix.packages }} pkg-config ffmpeg@8 qt@5 - name: Install qwt-qt5 run: | @@ -57,9 +57,10 @@ jobs: USE_BREW: true run: | cd Project/QtCreator + sed -i '' 's/std::atomic_bool abortRequest = false;/std::atomic_bool abortRequest{false};/g' qctools-QtAVPlayer/src/QtAVPlayer/qavdemuxer.cpp || true # temporary fix mkdir build cd build - export PKG_CONFIG_PATH="/opt/homebrew/opt/ffmpeg@6/lib/pkgconfig" + export PKG_CONFIG_PATH="/opt/homebrew/opt/ffmpeg@8/lib/pkgconfig" qmake .. make CC=$CC CXX=$CXX -j4 @@ -67,10 +68,10 @@ jobs: strategy: matrix: - compiler: ['clang-9'] + compiler: ['clang-18'] include: - - compiler: clang-9 - packages: llvm@15 + - compiler: clang-18 + packages: llvm@18 env: { 'CC': 'clang', 'CXX': 'clang++', 'HOMEBREW_NO_INSTALL_CLEANUP': '1', 'HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK': '1' } runs-on: macos-latest @@ -78,9 +79,9 @@ jobs: env: ${{ matrix.env }} steps: - - uses: actions/checkout@v2 + - uses: actions/checkout@v5 with: - fetch: 1 + fetch-depth: 1 - name: Checkout submodules shell: bash @@ -113,6 +114,7 @@ jobs: USE_BREW: true run: | cd Project/QtCreator + sed -i '' 's/#if QT_VERSION < QT_VERSION_CHECK(6, 4, 0)/#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)/g' qctools-QtAVPlayer/src/QtAVPlayer/qavvideoframe.cpp || true # temporary fix mkdir build cd build export PKG_CONFIG_PATH="/opt/homebrew/opt/ffmpeg@6/lib/pkgconfig" @@ -123,10 +125,10 @@ jobs: strategy: matrix: - compiler: ['clang-9'] + compiler: ['clang-18'] include: - - compiler: clang-9 - packages: llvm@15 + - compiler: clang-18 + packages: llvm@18 env: { 'CC': 'clang', 'CXX': 'clang++' } - qt_version: "5.15.*" @@ -135,9 +137,9 @@ jobs: env: ${{ matrix.env }} steps: - - uses: actions/checkout@v2 + - uses: actions/checkout@v5 with: - fetch: 1 + fetch-depth: 1 - name: Checkout submodules shell: bash @@ -180,7 +182,7 @@ jobs: - name: Build FFmpeg run: | - git clone --depth 1 --branch n6.1 https://github.com/FFmpeg/FFmpeg ../ffmpeg + git clone --depth 1 --branch n8.1 https://github.com/FFmpeg/FFmpeg ../ffmpeg cd ../ffmpeg ./configure --enable-gpl \ --enable-static \ @@ -199,21 +201,22 @@ jobs: USE_BREW: false run: | cd Project/QtCreator + sed -i '' 's/std::atomic_bool abortRequest = false;/std::atomic_bool abortRequest{false};/g' qctools-QtAVPlayer/src/QtAVPlayer/qavdemuxer.cpp || true # temporary fix mkdir build cd build - qmake .. + qmake .. make CC=$CC CXX=$CXX -j4 build-macos-no-brew-Qt6: strategy: matrix: - compiler: ['clang-9'] + compiler: ['clang-18'] include: - - compiler: clang-9 - packages: llvm@15 + - compiler: clang-18 + packages: llvm@18 env: { 'CC': 'clang', 'CXX': 'clang++', 'HOMEBREW_NO_INSTALL_CLEANUP': '1', 'HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK': '1' } - - qt_version: "6.5.*" + - qt_version: "6.8.*" qt_modules: "qtmultimedia" runs-on: macos-latest @@ -221,9 +224,9 @@ jobs: env: ${{ matrix.env }} steps: - - uses: actions/checkout@v2 + - uses: actions/checkout@v5 with: - fetch: 1 + fetch-depth: 1 - name: Checkout submodules shell: bash @@ -253,12 +256,14 @@ jobs: run: | git clone --branch qwt-6.3 --depth 1 https://git.code.sf.net/p/qwt/git ../qwt cd ../qwt - qmake -r + sed -i '' 's/^QWT_CONFIG += QwtOpenGL$/QWT_CONFIG -= QwtOpenGL/g' qwtconfig.pri + cat qwtconfig.pri + qmake -r "QMAKE_CXXFLAGS+=-include arm_acle.h" make CC=$CC CXX=$CXX -j4 - name: Build FFmpeg run: | - git clone --depth 1 --branch n6.1 https://github.com/FFmpeg/FFmpeg ../ffmpeg + git clone --depth 1 --branch n8.1 https://github.com/FFmpeg/FFmpeg ../ffmpeg cd ../ffmpeg ./configure --enable-gpl \ --enable-static \ @@ -299,9 +304,9 @@ jobs: env: ${{ matrix.env }} steps: - - uses: actions/checkout@v2 + - uses: actions/checkout@v5 with: - fetch: 1 + fetch-depth: 1 - name: Checkout submodules shell: bash run: | @@ -342,7 +347,7 @@ jobs: - name: Build FFmpeg run: | - git clone --depth 1 --branch n6.1 https://github.com/FFmpeg/FFmpeg ../ffmpeg + git clone --depth 1 --branch n8.1 https://github.com/FFmpeg/FFmpeg ../ffmpeg cd ../ffmpeg ./configure --enable-gpl \ --enable-shared \ @@ -373,7 +378,7 @@ jobs: - compiler: gcc-9 packages: gcc-9 g++-9 libbz2-dev env: { 'CC': 'gcc-9', 'CXX': 'g++-9' } - - qt_version: "6.5.*" + - qt_version: "6.6.*" qt_modules: "qtmultimedia qt5compat" qt_packages: "libxkbcommon-dev libgstreamer-plugins-base1.0-0 libgstreamer-gl1.0-0" @@ -382,9 +387,9 @@ jobs: env: ${{ matrix.env }} steps: - - uses: actions/checkout@v2 + - uses: actions/checkout@v5 with: - fetch: 1 + fetch-depth: 1 - name: Checkout submodules shell: bash run: | @@ -426,7 +431,7 @@ jobs: - name: Build FFmpeg run: | - git clone --depth 1 --branch n6.1 https://github.com/FFmpeg/FFmpeg ../ffmpeg + git clone --depth 1 --branch n8.1 https://github.com/FFmpeg/FFmpeg ../ffmpeg cd ../ffmpeg ./configure --enable-gpl \ --enable-shared \ @@ -457,9 +462,9 @@ jobs: runs-on: windows-latest steps: - - uses: actions/checkout@v2 + - uses: actions/checkout@v5 with: - fetch: 1 + fetch-depth: 1 - name: Checkout submodules shell: bash @@ -495,9 +500,9 @@ jobs: shell: pwsh run: | Set-Location .. - $json = $(curl -L -H "Accept: application/vnd.github+json" https://api.github.com/repos/BtbN/FFmpeg-Builds/releases/243719342) - $ffmpeg_name = $($json | jq -r '.assets[] | select(.name | endswith("-win64-gpl-shared-6.1.zip")).name | sub("\\.zip$";"")') - $ffmpeg_url = $($json | jq -r '.assets[] | select(.name | endswith("-win64-gpl-shared-6.1.zip")).browser_download_url') + $json = $(curl -L -H "Accept: application/vnd.github+json" https://api.github.com/repos/BtbN/FFmpeg-Builds/releases/342531362) + $ffmpeg_name = $($json | jq -r '.assets[] | select(.name | endswith("-win64-gpl-shared-8.1.zip")).name | sub("\\.zip$";"")') + $ffmpeg_url = $($json | jq -r '.assets[] | select(.name | endswith("-win64-gpl-shared-8.1.zip")).browser_download_url') Invoke-WebRequest -Uri "$ffmpeg_url" -OutFile "$ffmpeg_name.zip" Expand-Archive -Path "$ffmpeg_name.zip" -DestinationPath . Rename-Item -Path "$ffmpeg_name" -NewName "ffmpeg" @@ -533,15 +538,15 @@ jobs: strategy: matrix: include: - - qt_version: "6.3.0" + - qt_version: "6.6.*" qt_modules: "qtmultimedia qt5compat" runs-on: windows-latest steps: - - uses: actions/checkout@v2 + - uses: actions/checkout@v5 with: - fetch: 1 + fetch-depth: 1 - name: Checkout submodules shell: bash @@ -578,9 +583,9 @@ jobs: shell: pwsh run: | Set-Location .. - $json = $(curl -L -H "Accept: application/vnd.github+json" https://api.github.com/repos/BtbN/FFmpeg-Builds/releases/243719342) - $ffmpeg_name = $($json | jq -r '.assets[] | select(.name | endswith("-win64-gpl-shared-6.1.zip")).name | sub("\\.zip$";"")') - $ffmpeg_url = $($json | jq -r '.assets[] | select(.name | endswith("-win64-gpl-shared-6.1.zip")).browser_download_url') + $json = $(curl -L -H "Accept: application/vnd.github+json" https://api.github.com/repos/BtbN/FFmpeg-Builds/releases/342531362) + $ffmpeg_name = $($json | jq -r '.assets[] | select(.name | endswith("-win64-gpl-shared-8.1.zip")).name | sub("\\.zip$";"")') + $ffmpeg_url = $($json | jq -r '.assets[] | select(.name | endswith("-win64-gpl-shared-8.1.zip")).browser_download_url') Invoke-WebRequest -Uri "$ffmpeg_url" -OutFile "$ffmpeg_name.zip" Expand-Archive -Path "$ffmpeg_name.zip" -DestinationPath . Rename-Item -Path "$ffmpeg_name" -NewName "ffmpeg" @@ -617,12 +622,12 @@ jobs: matrix: qt_version: ["5.15.*"] - runs-on: windows-latest + runs-on: windows-2022 steps: - - uses: actions/checkout@v2 + - uses: actions/checkout@v5 with: - fetch: 1 + fetch-depth: 1 - name: Checkout submodules shell: bash @@ -662,9 +667,9 @@ jobs: shell: pwsh run: | Set-Location .. - $json = $(curl -L -H "Accept: application/vnd.github+json" https://api.github.com/repos/BtbN/FFmpeg-Builds/releases/243719342) - $ffmpeg_name = $($json | jq -r '.assets[] | select(.name | endswith("-win64-gpl-shared-6.1.zip")).name | sub("\\.zip$";"")') - $ffmpeg_url = $($json | jq -r '.assets[] | select(.name | endswith("-win64-gpl-shared-6.1.zip")).browser_download_url') + $json = $(curl -L -H "Accept: application/vnd.github+json" https://api.github.com/repos/BtbN/FFmpeg-Builds/releases/342531362) + $ffmpeg_name = $($json | jq -r '.assets[] | select(.name | endswith("-win64-gpl-shared-8.1.zip")).name | sub("\\.zip$";"")') + $ffmpeg_url = $($json | jq -r '.assets[] | select(.name | endswith("-win64-gpl-shared-8.1.zip")).browser_download_url') Invoke-WebRequest -Uri "$ffmpeg_url" -OutFile "$ffmpeg_name.zip" Expand-Archive -Path "$ffmpeg_name.zip" -DestinationPath . Rename-Item -Path "$ffmpeg_name" -NewName "ffmpeg" @@ -686,7 +691,7 @@ jobs: shell: cmd run: | cd Project/QtCreator - qmake + qmake QMAKE_CFLAGS+=/utf-8 QMAKE_CXXFLAGS+=/utf-8 - name: Build QCTools shell: cmd @@ -699,15 +704,15 @@ jobs: strategy: matrix: include: - - qt_version: "6.3.0" + - qt_version: "6.6.*" qt_modules: "qtmultimedia qt5compat" runs-on: windows-latest steps: - - uses: actions/checkout@v2 + - uses: actions/checkout@v5 with: - fetch: 1 + fetch-depth: 1 - name: Checkout submodules shell: bash @@ -749,9 +754,9 @@ jobs: shell: pwsh run: | Set-Location .. - $json = $(curl -L -H "Accept: application/vnd.github+json" https://api.github.com/repos/BtbN/FFmpeg-Builds/releases/243719342) - $ffmpeg_name = $($json | jq -r '.assets[] | select(.name | endswith("-win64-gpl-shared-6.1.zip")).name | sub("\\.zip$";"")') - $ffmpeg_url = $($json | jq -r '.assets[] | select(.name | endswith("-win64-gpl-shared-6.1.zip")).browser_download_url') + $json = $(curl -L -H "Accept: application/vnd.github+json" https://api.github.com/repos/BtbN/FFmpeg-Builds/releases/342531362) + $ffmpeg_name = $($json | jq -r '.assets[] | select(.name | endswith("-win64-gpl-shared-8.1.zip")).name | sub("\\.zip$";"")') + $ffmpeg_url = $($json | jq -r '.assets[] | select(.name | endswith("-win64-gpl-shared-8.1.zip")).browser_download_url') Invoke-WebRequest -Uri "$ffmpeg_url" -OutFile "$ffmpeg_name.zip" Expand-Archive -Path "$ffmpeg_name.zip" -DestinationPath . Rename-Item -Path "$ffmpeg_name" -NewName "ffmpeg" @@ -779,4 +784,4 @@ jobs: shell: cmd run: | cd Project/QtCreator - nmake \ No newline at end of file + nmake diff --git a/Project/BuildAllFromSource/build.ps1 b/Project/BuildAllFromSource/build.ps1 index 296ce54c6..aa2c9ddc5 100644 --- a/Project/BuildAllFromSource/build.ps1 +++ b/Project/BuildAllFromSource/build.ps1 @@ -123,6 +123,7 @@ if (Test-Path -Path qctools\Project\QtCreator\build) { } New-Item -ItemType directory -Name qctools\Project\QtCreator\build Push-Location -Path qctools\Project\QtCreator\build + git -C .. apply "$SCRIPT_DIR\qtavplayer-pktinfo.patch" ; Cmd-Result $Env:QWT_ROOT="$INSTALL_DIR/output" $Env:FFMPEG="$INSTALL_DIR/output" qmake QMAKE_CXXFLAGS+=/Zi QMAKE_LFLAGS+=/INCREMENTAL:NO QMAKE_LFLAGS+=/Debug DEFINES+=QT_AVPLAYER_MULTIMEDIA .. ; Cmd-Result diff --git a/Project/BuildAllFromSource/build.sh b/Project/BuildAllFromSource/build.sh index d556c3462..3a74e49b4 100755 --- a/Project/BuildAllFromSource/build.sh +++ b/Project/BuildAllFromSource/build.sh @@ -185,7 +185,6 @@ pushd ffmpeg/build lipo -create $INSTALL_DIR/output/x86_64/lib/libavfilter.a $INSTALL_DIR/output/arm64/lib/libavfilter.a -output $INSTALL_DIR/output/lib/libavfilter.a lipo -create $INSTALL_DIR/output/x86_64/lib/libavformat.a $INSTALL_DIR/output/arm64/lib/libavformat.a -output $INSTALL_DIR/output/lib/libavformat.a lipo -create $INSTALL_DIR/output/x86_64/lib/libavutil.a $INSTALL_DIR/output/arm64/lib/libavutil.a -output $INSTALL_DIR/output/lib/libavutil.a - lipo -create $INSTALL_DIR/output/x86_64/lib/libpostproc.a $INSTALL_DIR/output/arm64/lib/libpostproc.a -output $INSTALL_DIR/output/lib/libpostproc.a lipo -create $INSTALL_DIR/output/x86_64/lib/libswresample.a $INSTALL_DIR/output/arm64/lib/libswresample.a -output $INSTALL_DIR/output/lib/libswresample.a lipo -create $INSTALL_DIR/output/x86_64/lib/libswscale.a $INSTALL_DIR/output/arm64/lib/libswscale.a -output $INSTALL_DIR/output/lib/libswscale.a cp -r $INSTALL_DIR/output/x86_64/include $INSTALL_DIR/output @@ -221,6 +220,7 @@ fi mkdir qctools/Project/QtCreator/build pushd qctools/Project/QtCreator/build ( + git -C .. apply "$SCRIPT_DIR/qtavplayer-pktinfo.patch" export QWT_ROOT=$INSTALL_DIR/output FFMPEG=$INSTALL_DIR/output $BINQMAKE "${QT_CONFIGURE_OPTS[@]}" STATIC=1 .. make diff --git a/Project/BuildAllFromSource/dependencies.txt b/Project/BuildAllFromSource/dependencies.txt index 7677fba5b..d1a1f397c 100644 --- a/Project/BuildAllFromSource/dependencies.txt +++ b/Project/BuildAllFromSource/dependencies.txt @@ -1,4 +1,4 @@ freetype:https://download.savannah.gnu.org/releases/freetype/freetype-2.13.2.tar.xz harfbuzz:https://github.com/harfbuzz/harfbuzz/releases/download/10.2.0/harfbuzz-10.2.0.tar.xz -ffmpeg:https://ffmpeg.org/releases/ffmpeg-6.1.2.tar.xz +ffmpeg:https://ffmpeg.org/releases/ffmpeg-8.1.1.tar.xz qwt:https://sourceforge.net/projects/qwt/files/qwt/6.3.0/qwt-6.3.0.tar.bz2 diff --git a/Project/BuildAllFromSource/qtavplayer-pktinfo.patch b/Project/BuildAllFromSource/qtavplayer-pktinfo.patch new file mode 100644 index 000000000..423242fe4 --- /dev/null +++ b/Project/BuildAllFromSource/qtavplayer-pktinfo.patch @@ -0,0 +1,91 @@ +From 2f5f428c8a51381e9a5d31b41090215a69dcbab3 Mon Sep 17 00:00:00 2001 +From: Maxime Gervais +Date: Sun, 21 Jun 2026 16:26:38 +0200 +Subject: [PATCH] QTAVPlayer patches + +Signed-off-by: Maxime Gervais +--- + .../src/QtAVPlayer/qavcodec.cpp | 3 ++ + .../src/QtAVPlayer/qavdemuxer.cpp | 30 ++++++++++++++++++- + 2 files changed, 32 insertions(+), 1 deletion(-) + +diff --git a/qctools-QtAVPlayer/src/QtAVPlayer/qavcodec.cpp b/qctools-QtAVPlayer/src/QtAVPlayer/qavcodec.cpp +index 707ced7..d7a8688 100644 +--- a/qctools-QtAVPlayer/src/QtAVPlayer/qavcodec.cpp ++++ b/qctools-QtAVPlayer/src/QtAVPlayer/qavcodec.cpp +@@ -65,6 +65,9 @@ bool QAVCodec::open(AVStream *stream, AVDictionary** opts) + } + + d->avctx->codec_id = d->codec->id; ++#if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(59, 0, 0) ++ d->avctx->flags |= AV_CODEC_FLAG_COPY_OPAQUE; ++#endif + ret = avcodec_open2(d->avctx, d->codec, opts); + if (ret < 0) { + qWarning() << "Could not open the codec:" << d->codec->name << d->codec->id << ret; +diff --git a/qctools-QtAVPlayer/src/QtAVPlayer/qavdemuxer.cpp b/qctools-QtAVPlayer/src/QtAVPlayer/qavdemuxer.cpp +index 2861a7e..439ccca 100644 +--- a/qctools-QtAVPlayer/src/QtAVPlayer/qavdemuxer.cpp ++++ b/qctools-QtAVPlayer/src/QtAVPlayer/qavdemuxer.cpp +@@ -52,6 +52,7 @@ extern "C" { + #include + #include + #include ++#include + #if LIBAVCODEC_VERSION_INT >= AV_VERSION_INT(59, 0, 0) + #include + #endif +@@ -61,6 +62,29 @@ QT_BEGIN_NAMESPACE + + namespace { + ++struct PacketInfo ++{ ++ int64_t pkt_pos = 0; ++ int pkt_size = 0; ++}; ++ ++static void attachPacketInfo(AVPacket *pkt) ++{ ++ if (!pkt) ++ return; ++ ++ AVBufferRef *opaque = av_buffer_alloc(sizeof(PacketInfo)); ++ if (!opaque) ++ return; ++ ++ auto *info = reinterpret_cast(opaque->data); ++ info->pkt_pos = pkt->pos; ++ info->pkt_size = pkt->size; ++ ++ av_buffer_unref(&pkt->opaque_ref); ++ pkt->opaque_ref = opaque; ++} ++ + struct QAVDictionaryHolder + { + AVDictionary *dict = nullptr; +@@ -702,6 +726,8 @@ int QAVDemuxer::read(QAVPacket &pkt) + } else { + qDebug() << "av_read_frame: unexpected result:" << ret; + } ++ } else { ++ attachPacketInfo(pkt.packet()); + } + { + QMutexLocker locker(&d->mutex); +@@ -723,8 +749,10 @@ int QAVDemuxer::read(QAVPacket &pkt) + if ((ret >= 0 || eof) && d->bsf_ctx) { + int bsf_ret = av_bsf_send_packet(d->bsf_ctx, d->eof ? NULL : pkt.packet()); + if (bsf_ret >= 0) { +- while ((bsf_ret = av_bsf_receive_packet(d->bsf_ctx, pkt.packet())) >= 0) ++ while ((bsf_ret = av_bsf_receive_packet(d->bsf_ctx, pkt.packet())) >= 0) { ++ attachPacketInfo(pkt.packet()); + d->packets.append(pkt); ++ } + } + if (bsf_ret < 0 && bsf_ret != AVERROR_EOF && bsf_ret != AVERROR(EAGAIN)) { + qWarning() << "Error applying bitstream filters to an output:" << bsf_ret; +-- +2.54.0 + diff --git a/Project/GNU/PKGBUILD b/Project/GNU/PKGBUILD index e923c3063..24f72698d 100644 --- a/Project/GNU/PKGBUILD +++ b/Project/GNU/PKGBUILD @@ -27,8 +27,10 @@ build() { cd "${srcdir}/qctools/qctools" chmod 644 History.txt chmod 644 License.html - mkdir Project/QtCreator/build - cd Project/QtCreator/build + cd Project/QtCreator + patch -p1 < ../BuildAllFromSource/qtavplayer-pktinfo.patch + mkdir build + cd build qmake6 -after LIBS+=-lharfbuzz LIBS+=-lfreetype .. make } diff --git a/Project/GNU/qctools.spec b/Project/GNU/qctools.spec index 51fc8a42d..951cfbd5d 100644 --- a/Project/GNU/qctools.spec +++ b/Project/GNU/qctools.spec @@ -112,10 +112,13 @@ popd pushd qctools chmod 644 History.txt chmod 644 License.html - mkdir Project/QtCreator/build - pushd Project/QtCreator/build - qmake6 .. -after CONFIG+=force_debug_info LIBS+=-lharfbuzz LIBS+=-lfreetype - %__make %{?jobs:-j%{jobs}} + pushd Project/QtCreator + patch -p1 < ../BuildAllFromSource/qtavplayer-pktinfo.patch + mkdir build + pushd build + qmake6 .. -after CONFIG+=force_debug_info LIBS+=-lharfbuzz LIBS+=-lfreetype + %__make %{?jobs:-j%{jobs}} + popd popd popd diff --git a/Project/QtCreator/ffmpeg.pri b/Project/QtCreator/ffmpeg.pri index c4f7ccddd..ddae55f57 100644 --- a/Project/QtCreator/ffmpeg.pri +++ b/Project/QtCreator/ffmpeg.pri @@ -5,7 +5,7 @@ USE_BREW = $$(USE_BREW) macx:!isEmpty(USE_BREW):equals(USE_BREW, true) { message("use ffmpeg from brew") - PKGCONFIG += libavdevice libavcodec libavfilter libavformat libpostproc + PKGCONFIG += libavdevice libavcodec libavfilter libavformat PKGCONFIG += libswresample libswscale libavcodec libavutil CONFIG += link_pkgconfig @@ -31,7 +31,6 @@ macx:!isEmpty(USE_BREW):equals(USE_BREW, true) { -lavcodec \ -lavfilter \ -lavformat \ - -lpostproc \ -lswresample \ -lswscale \ -lavutil @@ -41,7 +40,6 @@ macx:!isEmpty(USE_BREW):equals(USE_BREW, true) { -lavfilter \ -lavformat \ -lavcodec \ - -lpostproc \ -lswresample \ -lswscale \ -lavutil @@ -53,7 +51,6 @@ macx:!isEmpty(USE_BREW):equals(USE_BREW, true) { FFMPEG_AVCODEC=$$absolute_path($$FFMPEG/libavcodec) FFMPEG_AVFILTER=$$absolute_path($$FFMPEG/libavfilter) FFMPEG_AVFORMAT=$$absolute_path($$FFMPEG/libavformat) - FFMPEG_POSTPROC=$$absolute_path($$FFMPEG/libpostproc) FFMPEG_SWRESAMPLE=$$absolute_path($$FFMPEG/libswresample) FFMPEG_SWSCALE=$$absolute_path($$FFMPEG/libswscale) FFMPEG_AVUTIL=$$absolute_path($$FFMPEG/libavutil) @@ -63,7 +60,6 @@ macx:!isEmpty(USE_BREW):equals(USE_BREW, true) { -L$$FFMPEG_AVFILTER -lavfilter \ -L$$FFMPEG_AVFORMAT -lavformat \ -L$$FFMPEG_AVCODEC -lavcodec \ - -L$$FFMPEG_POSTPROC -lpostproc \ -L$$FFMPEG_SWRESAMPLE -lswresample \ -L$$FFMPEG_SWSCALE -lswscale \ -L$$FFMPEG_AVUTIL -lavutil diff --git a/Project/QtCreator/qctools-lib/qctools-lib.pro b/Project/QtCreator/qctools-lib/qctools-lib.pro index 81e96b1bd..0bf21bfe3 100644 --- a/Project/QtCreator/qctools-lib/qctools-lib.pro +++ b/Project/QtCreator/qctools-lib/qctools-lib.pro @@ -78,3 +78,4 @@ QTAVPLAYER_SRC=$$absolute_path(../qctools-QtAVPlayer) QTAVPLAYER_LIB=$$absolute_path($$OUT_PWD/../qctools-QtAVPlayer) INCLUDEPATH += $$absolute_path($$QTAVPLAYER_SRC/src) $$absolute_path($$QTAVPLAYER_SRC/src/QtAVPlayer) +include($$QTAVPLAYER_SRC/src/QtAVPlayer/QtAVPlayer.pri) \ No newline at end of file diff --git a/Release/Release_CLI_Windows.ps1 b/Release/Release_CLI_Windows.ps1 index fd59cabc9..7fec6e8d9 100644 --- a/Release/Release_CLI_Windows.ps1 +++ b/Release/Release_CLI_Windows.ps1 @@ -78,7 +78,6 @@ Push-Location "${release_directory}" Copy-Item -Path "${release_directory}\..\..\output\bin\avfilter-*.dll" . Copy-Item -Path "${release_directory}\..\..\output\bin\avformat-*.dll" . Copy-Item -Path "${release_directory}\..\..\output\bin\avutil-*.dll" . - Copy-Item -Path "${release_directory}\..\..\output\bin\postproc-*.dll" . Copy-Item -Path "${release_directory}\..\..\output\bin\swresample-*.dll" . Copy-Item -Path "${release_directory}\..\..\output\bin\swscale-*.dll" . Copy-Item -Path "${release_directory}\..\..\output\bin\freetype-*.dll" . diff --git a/Release/Release_GUI_Windows.ps1 b/Release/Release_GUI_Windows.ps1 index 6e8a981f2..ec9471f30 100644 --- a/Release/Release_GUI_Windows.ps1 +++ b/Release/Release_GUI_Windows.ps1 @@ -92,7 +92,6 @@ Push-Location "${release_directory}" Copy-Item -Path "${release_directory}\..\..\output\bin\avfilter-*.dll" . Copy-Item -Path "${release_directory}\..\..\output\bin\avformat-*.dll" . Copy-Item -Path "${release_directory}\..\..\output\bin\avutil-*.dll" . - Copy-Item -Path "${release_directory}\..\..\output\bin\postproc-*.dll" . Copy-Item -Path "${release_directory}\..\..\output\bin\swresample-*.dll" . Copy-Item -Path "${release_directory}\..\..\output\bin\swscale-*.dll" . Copy-Item -Path "${release_directory}\..\..\output\bin\freetype-*.dll" . diff --git a/Source/Core/AudioStats.cpp b/Source/Core/AudioStats.cpp index 2d7208e16..7fd6e1edf 100644 --- a/Source/Core/AudioStats.cpp +++ b/Source/Core/AudioStats.cpp @@ -12,6 +12,7 @@ //--------------------------------------------------------------------------- extern "C" { +#include #include #include #include @@ -28,6 +29,16 @@ extern "C" using namespace tinyxml2; //--------------------------------------------------------------------------- +namespace { + +struct PacketInfo +{ + int64_t pkt_pos = 0; + int pkt_size = 0; +}; + +} + //*************************************************************************** // Constructor / Destructor //*************************************************************************** @@ -238,10 +249,21 @@ void AudioStats::StatsFromFrame (const QAVFrame& frame, int, int) initializeAdditionalStats(); } - key_frames[x_Current]=Frame->key_frame?true:false; + key_frames[x_Current] = (Frame->flags & AV_FRAME_FLAG_KEY) != 0; +#if LIBAVUTIL_VERSION_MAJOR < 60 pkt_pos[x_Current] = Frame->pkt_pos; pkt_size[x_Current] = Frame->pkt_size; +#else + pkt_pos[x_Current] = 0; + pkt_size[x_Current] = 0; + if (Frame->opaque_ref && Frame->opaque_ref->data) + { + const auto* info = reinterpret_cast(Frame->opaque_ref->data); + pkt_pos[x_Current] = info->pkt_pos; + pkt_size[x_Current] = info->pkt_size; + } +#endif pkt_pts[x_Current] = Frame->pts; if (x_Max[0]<=x[0][x_Current]) diff --git a/Source/Core/VideoStats.cpp b/Source/Core/VideoStats.cpp index 8f730c24c..665925abd 100644 --- a/Source/Core/VideoStats.cpp +++ b/Source/Core/VideoStats.cpp @@ -12,6 +12,7 @@ //--------------------------------------------------------------------------- extern "C" { +#include #include #include #include @@ -27,6 +28,16 @@ extern "C" using namespace tinyxml2; //--------------------------------------------------------------------------- +namespace { + +struct PacketInfo +{ + int64_t pkt_pos = 0; + int pkt_size = 0; +}; + +} + //*************************************************************************** // Constructor / Destructor //*************************************************************************** @@ -340,10 +351,21 @@ void VideoStats::StatsFromFrame (const QAVFrame& frame, int Width, int Height) group1Min = current; } - key_frames[x_Current]=Frame->key_frame?true:false; + key_frames[x_Current] = (Frame->flags & AV_FRAME_FLAG_KEY) != 0; +#if LIBAVUTIL_VERSION_MAJOR < 60 pkt_pos[x_Current] = Frame->pkt_pos; pkt_size[x_Current] = Frame->pkt_size; +#else + pkt_pos[x_Current] = 0; + pkt_size[x_Current] = 0; + if (Frame->opaque_ref && Frame->opaque_ref->data) + { + const auto* info = reinterpret_cast(Frame->opaque_ref->data); + pkt_pos[x_Current] = info->pkt_pos; + pkt_size[x_Current] = info->pkt_size; + } +#endif pkt_pts[x_Current] = Frame->pts; y[Item_pkt_size][x_Current] = pkt_size[x_Current]; diff --git a/Source/Install/QCTools.nsi b/Source/Install/QCTools.nsi index 09d619ce6..bd17fd060 100644 --- a/Source/Install/QCTools.nsi +++ b/Source/Install/QCTools.nsi @@ -106,7 +106,6 @@ Section "SectionPrincipale" SEC01 File "..\..\..\output\bin\avfilter-*.dll" File "..\..\..\output\bin\avformat-*.dll" File "..\..\..\output\bin\avutil-*.dll" - File "..\..\..\output\bin\postproc-*.dll" File "..\..\..\output\bin\swresample-*.dll" File "..\..\..\output\bin\swscale-*.dll" File "..\..\..\output\bin\freetype-*.dll" @@ -196,7 +195,6 @@ Section Uninstall Delete "$INSTDIR\avfilter-*.dll" Delete "$INSTDIR\avformat-*.dll" Delete "$INSTDIR\avutil-*.dll" - Delete "$INSTDIR\postproc-*.dll" Delete "$INSTDIR\swresample-*.dll" Delete "$INSTDIR\swscale-*.dll" Delete "$INSTDIR\freetype-*.dll" @@ -245,6 +243,7 @@ Section Uninstall RMDir "$INSTDIR" Delete "$SMPROGRAMS\QCTools.lnk" ; Olds + Delete "$INSTDIR\postproc-*.dll" Delete "$INSTDIR\QtAVPlayer.dll" Delete "$INSTDIR\Qt5Core.dll" Delete "$INSTDIR\Qt5Gui.dll" diff --git a/Source/ThirdParty/spdlog/async.h b/Source/ThirdParty/spdlog/async.h index 833be4fbb..92fcd9a7d 100644 --- a/Source/ThirdParty/spdlog/async.h +++ b/Source/ThirdParty/spdlog/async.h @@ -6,7 +6,7 @@ // // Async logging using global thread pool // All loggers created here share same global thread pool. -// Each log message is pushed to a queue along withe a shared pointer to the +// Each log message is pushed to a queue along with a shared pointer to the // logger. // If a logger deleted while having pending messages in the queue, it's actual // destruction will defer @@ -14,13 +14,13 @@ // This is because each message in the queue holds a shared_ptr to the // originating logger. -#include "spdlog/async_logger.h" -#include "spdlog/details/registry.h" -#include "spdlog/details/thread_pool.h" +#include +#include +#include +#include #include #include -#include namespace spdlog { @@ -31,12 +31,10 @@ static const size_t default_async_q_size = 8192; // async logger factory - creates async loggers backed with thread pool. // if a global thread pool doesn't already exist, create it with default queue // size of 8192 items and single thread. -template -struct async_factory_impl -{ - template - static std::shared_ptr create(std::string logger_name, SinkArgs &&... args) - { +template +struct async_factory_impl { + template + static std::shared_ptr create(std::string logger_name, SinkArgs &&...args) { auto ®istry_inst = details::registry::instance(); // create global thread pool if not already exists.. @@ -44,14 +42,14 @@ struct async_factory_impl auto &mutex = registry_inst.tp_mutex(); std::lock_guard tp_lock(mutex); auto tp = registry_inst.get_tp(); - if (tp == nullptr) - { - tp = std::make_shared(details::default_async_q_size, 1); + if (tp == nullptr) { + tp = std::make_shared(details::default_async_q_size, 1U); registry_inst.set_tp(tp); } auto sink = std::make_shared(std::forward(args)...); - auto new_logger = std::make_shared(std::move(logger_name), std::move(sink), std::move(tp), OverflowPolicy); + auto new_logger = std::make_shared(std::move(logger_name), std::move(sink), + std::move(tp), OverflowPolicy); registry_inst.initialize_logger(new_logger); return new_logger; } @@ -60,34 +58,42 @@ struct async_factory_impl using async_factory = async_factory_impl; using async_factory_nonblock = async_factory_impl; -template -inline std::shared_ptr create_async(std::string logger_name, SinkArgs &&... sink_args) -{ - return async_factory::create(std::move(logger_name), std::forward(sink_args)...); +template +inline std::shared_ptr create_async(std::string logger_name, + SinkArgs &&...sink_args) { + return async_factory::create(std::move(logger_name), + std::forward(sink_args)...); } -template -inline std::shared_ptr create_async_nb(std::string logger_name, SinkArgs &&... sink_args) -{ - return async_factory_nonblock::create(std::move(logger_name), std::forward(sink_args)...); +template +inline std::shared_ptr create_async_nb(std::string logger_name, + SinkArgs &&...sink_args) { + return async_factory_nonblock::create(std::move(logger_name), + std::forward(sink_args)...); } // set global thread pool. -inline void init_thread_pool(size_t q_size, size_t thread_count, std::function on_thread_start) -{ - auto tp = std::make_shared(q_size, thread_count, on_thread_start); +inline void init_thread_pool(size_t q_size, + size_t thread_count, + std::function on_thread_start, + std::function on_thread_stop) { + auto tp = std::make_shared(q_size, thread_count, on_thread_start, + on_thread_stop); details::registry::instance().set_tp(std::move(tp)); } -// set global thread pool. -inline void init_thread_pool(size_t q_size, size_t thread_count) -{ - init_thread_pool(q_size, thread_count, [] {}); +inline void init_thread_pool(size_t q_size, + size_t thread_count, + std::function on_thread_start) { + init_thread_pool(q_size, thread_count, on_thread_start, [] {}); +} + +inline void init_thread_pool(size_t q_size, size_t thread_count) { + init_thread_pool(q_size, thread_count, [] {}, [] {}); } // get the global thread pool. -inline std::shared_ptr thread_pool() -{ +inline std::shared_ptr thread_pool() { return details::registry::instance().get_tp(); } -} // namespace spdlog +} // namespace spdlog diff --git a/Source/ThirdParty/spdlog/async_logger-inl.h b/Source/ThirdParty/spdlog/async_logger-inl.h index cfeda2de1..cde73f90b 100644 --- a/Source/ThirdParty/spdlog/async_logger-inl.h +++ b/Source/ThirdParty/spdlog/async_logger-inl.h @@ -4,88 +4,80 @@ #pragma once #ifndef SPDLOG_HEADER_ONLY -#include "spdlog/async_logger.h" +#include #endif -#include "spdlog/sinks/sink.h" -#include "spdlog/details/thread_pool.h" +#include +#include #include #include -SPDLOG_INLINE spdlog::async_logger::async_logger( - std::string logger_name, sinks_init_list sinks_list, std::weak_ptr tp, async_overflow_policy overflow_policy) - : async_logger(std::move(logger_name), sinks_list.begin(), sinks_list.end(), std::move(tp), overflow_policy) -{} +SPDLOG_INLINE spdlog::async_logger::async_logger(std::string logger_name, + sinks_init_list sinks_list, + std::weak_ptr tp, + async_overflow_policy overflow_policy) + : async_logger(std::move(logger_name), + sinks_list.begin(), + sinks_list.end(), + std::move(tp), + overflow_policy) {} -SPDLOG_INLINE spdlog::async_logger::async_logger( - std::string logger_name, sink_ptr single_sink, std::weak_ptr tp, async_overflow_policy overflow_policy) - : async_logger(std::move(logger_name), {std::move(single_sink)}, std::move(tp), overflow_policy) -{} +SPDLOG_INLINE spdlog::async_logger::async_logger(std::string logger_name, + sink_ptr single_sink, + std::weak_ptr tp, + async_overflow_policy overflow_policy) + : async_logger( + std::move(logger_name), {std::move(single_sink)}, std::move(tp), overflow_policy) {} // send the log message to the thread pool -SPDLOG_INLINE void spdlog::async_logger::sink_it_(const details::log_msg &msg) -{ - if (auto pool_ptr = thread_pool_.lock()) - { - pool_ptr->post_log(shared_from_this(), msg, overflow_policy_); - } - else - { - SPDLOG_THROW(spdlog_ex("async log: thread pool doesn't exist anymore")); - } +SPDLOG_INLINE void spdlog::async_logger::sink_it_(const details::log_msg &msg){ + SPDLOG_TRY{if (auto pool_ptr = thread_pool_.lock()){ + pool_ptr -> post_log(shared_from_this(), msg, overflow_policy_); +} +else { + throw_spdlog_ex("async log: thread pool doesn't exist anymore"); +} +} +SPDLOG_LOGGER_CATCH(msg.source) } // send flush request to the thread pool -SPDLOG_INLINE void spdlog::async_logger::flush_() -{ - if (auto pool_ptr = thread_pool_.lock()) - { - pool_ptr->post_flush(shared_from_this(), overflow_policy_); - } - else - { - SPDLOG_THROW(spdlog_ex("async flush: thread pool doesn't exist anymore")); - } +SPDLOG_INLINE void spdlog::async_logger::flush_(){ + SPDLOG_TRY{if (auto pool_ptr = thread_pool_.lock()){ + pool_ptr -> post_flush(shared_from_this(), overflow_policy_); +} +else { + throw_spdlog_ex("async flush: thread pool doesn't exist anymore"); +} +} +SPDLOG_LOGGER_CATCH(source_loc()) } // // backend functions - called from the thread pool to do the actual job // -SPDLOG_INLINE void spdlog::async_logger::backend_sink_it_(const details::log_msg &msg) -{ - for (auto &sink : sinks_) - { - if (sink->should_log(msg.level)) - { - SPDLOG_TRY - { - sink->log(msg); - } - SPDLOG_LOGGER_CATCH() +SPDLOG_INLINE void spdlog::async_logger::backend_sink_it_(const details::log_msg &msg) { + for (auto &sink : sinks_) { + if (sink->should_log(msg.level)) { + SPDLOG_TRY { sink->log(msg); } + SPDLOG_LOGGER_CATCH(msg.source) } } - if (should_flush_(msg)) - { + if (should_flush_(msg)) { backend_flush_(); } } -SPDLOG_INLINE void spdlog::async_logger::backend_flush_() -{ - for (auto &sink : sinks_) - { - SPDLOG_TRY - { - sink->flush(); - } - SPDLOG_LOGGER_CATCH() +SPDLOG_INLINE void spdlog::async_logger::backend_flush_() { + for (auto &sink : sinks_) { + SPDLOG_TRY { sink->flush(); } + SPDLOG_LOGGER_CATCH(source_loc()) } } -SPDLOG_INLINE std::shared_ptr spdlog::async_logger::clone(std::string new_name) -{ +SPDLOG_INLINE std::shared_ptr spdlog::async_logger::clone(std::string new_name) { auto cloned = std::make_shared(*this); cloned->name_ = std::move(new_name); return cloned; diff --git a/Source/ThirdParty/spdlog/async_logger.h b/Source/ThirdParty/spdlog/async_logger.h index 0a685186e..be3615384 100644 --- a/Source/ThirdParty/spdlog/async_logger.h +++ b/Source/ThirdParty/spdlog/async_logger.h @@ -14,40 +14,46 @@ // Upon destruction, logs all remaining messages in the queue before // destructing.. -#include "spdlog/logger.h" +#include namespace spdlog { // Async overflow policy - block by default. -enum class async_overflow_policy -{ - block, // Block until message can be enqueued - overrun_oldest // Discard oldest message in the queue if full when trying to - // add new item. +enum class async_overflow_policy { + block, // Block until message can be enqueued + overrun_oldest, // Discard oldest message in the queue if full when trying to + // add new item. + discard_new // Discard new message if the queue is full when trying to add new item. }; namespace details { class thread_pool; } -class async_logger final : public std::enable_shared_from_this, public logger -{ +class SPDLOG_API async_logger final : public std::enable_shared_from_this, + public logger { friend class details::thread_pool; public: - template - async_logger(std::string logger_name, It begin, It end, std::weak_ptr tp, - async_overflow_policy overflow_policy = async_overflow_policy::block) - : logger(std::move(logger_name), begin, end) - , thread_pool_(std::move(tp)) - , overflow_policy_(overflow_policy) - {} + template + async_logger(std::string logger_name, + It begin, + It end, + std::weak_ptr tp, + async_overflow_policy overflow_policy = async_overflow_policy::block) + : logger(std::move(logger_name), begin, end), + thread_pool_(std::move(tp)), + overflow_policy_(overflow_policy) {} - async_logger(std::string logger_name, sinks_init_list sinks_list, std::weak_ptr tp, - async_overflow_policy overflow_policy = async_overflow_policy::block); + async_logger(std::string logger_name, + sinks_init_list sinks_list, + std::weak_ptr tp, + async_overflow_policy overflow_policy = async_overflow_policy::block); - async_logger(std::string logger_name, sink_ptr single_sink, std::weak_ptr tp, - async_overflow_policy overflow_policy = async_overflow_policy::block); + async_logger(std::string logger_name, + sink_ptr single_sink, + std::weak_ptr tp, + async_overflow_policy overflow_policy = async_overflow_policy::block); std::shared_ptr clone(std::string new_name) override; @@ -61,7 +67,7 @@ class async_logger final : public std::enable_shared_from_this, pu std::weak_ptr thread_pool_; async_overflow_policy overflow_policy_; }; -} // namespace spdlog +} // namespace spdlog #ifdef SPDLOG_HEADER_ONLY #include "async_logger-inl.h" diff --git a/Source/ThirdParty/spdlog/cfg/argv.h b/Source/ThirdParty/spdlog/cfg/argv.h new file mode 100644 index 000000000..7de2f83e7 --- /dev/null +++ b/Source/ThirdParty/spdlog/cfg/argv.h @@ -0,0 +1,40 @@ +// Copyright(c) 2015-present, Gabi Melman & spdlog contributors. +// Distributed under the MIT License (http://opensource.org/licenses/MIT) + +#pragma once +#include +#include + +// +// Init log levels using each argv entry that starts with "SPDLOG_LEVEL=" +// +// set all loggers to debug level: +// example.exe "SPDLOG_LEVEL=debug" + +// set logger1 to trace level +// example.exe "SPDLOG_LEVEL=logger1=trace" + +// turn off all logging except for logger1 and logger2: +// example.exe "SPDLOG_LEVEL=off,logger1=debug,logger2=info" + +namespace spdlog { +namespace cfg { + +// search for SPDLOG_LEVEL= in the args and use it to init the levels +inline void load_argv_levels(int argc, const char **argv) { + const std::string spdlog_level_prefix = "SPDLOG_LEVEL="; + for (int i = 1; i < argc; i++) { + std::string arg = argv[i]; + if (arg.find(spdlog_level_prefix) == 0) { + auto levels_string = arg.substr(spdlog_level_prefix.size()); + helpers::load_levels(levels_string); + } + } +} + +inline void load_argv_levels(int argc, char **argv) { + load_argv_levels(argc, const_cast(argv)); +} + +} // namespace cfg +} // namespace spdlog diff --git a/Source/ThirdParty/spdlog/cfg/env.h b/Source/ThirdParty/spdlog/cfg/env.h new file mode 100644 index 000000000..47bf61c72 --- /dev/null +++ b/Source/ThirdParty/spdlog/cfg/env.h @@ -0,0 +1,36 @@ +// Copyright(c) 2015-present, Gabi Melman & spdlog contributors. +// Distributed under the MIT License (http://opensource.org/licenses/MIT) + +#pragma once +#include +#include +#include + +// +// Init levels and patterns from env variables SPDLOG_LEVEL +// Inspired from Rust's "env_logger" crate (https://crates.io/crates/env_logger). +// Note - fallback to "info" level on unrecognized levels +// +// Examples: +// +// set global level to debug: +// export SPDLOG_LEVEL=debug +// +// turn off all logging except for logger1: +// export SPDLOG_LEVEL="*=off,logger1=debug" +// + +// turn off all logging except for logger1 and logger2: +// export SPDLOG_LEVEL="off,logger1=debug,logger2=info" + +namespace spdlog { +namespace cfg { +inline void load_env_levels(const char* var = "SPDLOG_LEVEL") { + auto env_val = details::os::getenv(var); + if (!env_val.empty()) { + helpers::load_levels(env_val); + } +} + +} // namespace cfg +} // namespace spdlog diff --git a/Source/ThirdParty/spdlog/cfg/helpers-inl.h b/Source/ThirdParty/spdlog/cfg/helpers-inl.h new file mode 100644 index 000000000..6ed869558 --- /dev/null +++ b/Source/ThirdParty/spdlog/cfg/helpers-inl.h @@ -0,0 +1,106 @@ +// Copyright(c) 2015-present, Gabi Melman & spdlog contributors. +// Distributed under the MIT License (http://opensource.org/licenses/MIT) + +#pragma once + +#ifndef SPDLOG_HEADER_ONLY +#include +#endif + +#include +#include + +#include +#include +#include +#include + +namespace spdlog { +namespace cfg { +namespace helpers { + +// inplace convert to lowercase +inline std::string &to_lower_(std::string &str) { + std::transform(str.begin(), str.end(), str.begin(), [](char ch) { + return static_cast((ch >= 'A' && ch <= 'Z') ? ch + ('a' - 'A') : ch); + }); + return str; +} + +// inplace trim spaces +inline std::string &trim_(std::string &str) { + const char *spaces = " \n\r\t"; + str.erase(str.find_last_not_of(spaces) + 1); + str.erase(0, str.find_first_not_of(spaces)); + return str; +} + +// return (name,value) trimmed pair from the given "name = value" string. +// return empty string on missing parts +// "key=val" => ("key", "val") +// " key = val " => ("key", "val") +// "key=" => ("key", "") +// "val" => ("", "val") + +inline std::pair extract_kv_(char sep, const std::string &str) { + auto n = str.find(sep); + std::string k, v; + if (n == std::string::npos) { + v = str; + } else { + k = str.substr(0, n); + v = str.substr(n + 1); + } + return std::make_pair(trim_(k), trim_(v)); +} + +// return vector of key/value pairs from a sequence of "K1=V1,K2=V2,.." +// "a=AAA,b=BBB,c=CCC,.." => {("a","AAA"),("b","BBB"),("c", "CCC"),...} +inline std::unordered_map extract_key_vals_(const std::string &str) { + std::string token; + std::istringstream token_stream(str); + std::unordered_map rv{}; + while (std::getline(token_stream, token, ',')) { + if (token.empty()) { + continue; + } + auto kv = extract_kv_('=', token); + rv[kv.first] = kv.second; + } + return rv; +} + +SPDLOG_INLINE void load_levels(const std::string &input) { + if (input.empty() || input.size() >= 32768) { + return; + } + + auto key_vals = extract_key_vals_(input); + std::unordered_map levels; + level::level_enum global_level = level::info; + bool global_level_found = false; + + for (auto &name_level : key_vals) { + const auto &logger_name = name_level.first; + const auto &level_name = to_lower_(name_level.second); + auto level = level::from_str(level_name); + // ignore unrecognized level names + if (level == level::off && level_name != "off") { + continue; + } + if (logger_name.empty()) // no logger name indicates global level + { + global_level_found = true; + global_level = level; + } else { + levels[logger_name] = level; + } + } + + details::registry::instance().set_levels(std::move(levels), + global_level_found ? &global_level : nullptr); +} + +} // namespace helpers +} // namespace cfg +} // namespace spdlog diff --git a/Source/ThirdParty/spdlog/cfg/helpers.h b/Source/ThirdParty/spdlog/cfg/helpers.h new file mode 100644 index 000000000..d09a1e978 --- /dev/null +++ b/Source/ThirdParty/spdlog/cfg/helpers.h @@ -0,0 +1,29 @@ +// Copyright(c) 2015-present, Gabi Melman & spdlog contributors. +// Distributed under the MIT License (http://opensource.org/licenses/MIT) + +#pragma once + +#include +#include + +namespace spdlog { +namespace cfg { +namespace helpers { +// +// Init levels from given string +// +// Examples: +// +// set global level to debug: "debug" +// turn off all logging except for logger1: "off,logger1=debug" +// turn off all logging except for logger1 and logger2: "off,logger1=debug,logger2=info" +// +SPDLOG_API void load_levels(const std::string &txt); +} // namespace helpers + +} // namespace cfg +} // namespace spdlog + +#ifdef SPDLOG_HEADER_ONLY +#include "helpers-inl.h" +#endif // SPDLOG_HEADER_ONLY diff --git a/Source/ThirdParty/spdlog/common-inl.h b/Source/ThirdParty/spdlog/common-inl.h index 7ba125118..f35901c5a 100644 --- a/Source/ThirdParty/spdlog/common-inl.h +++ b/Source/ThirdParty/spdlog/common-inl.h @@ -4,54 +4,65 @@ #pragma once #ifndef SPDLOG_HEADER_ONLY -#include "spdlog/common.h" +#include #endif +#include +#include + namespace spdlog { namespace level { -static string_view_t level_string_views[] SPDLOG_LEVEL_NAMES; + +#if __cplusplus >= 201703L +constexpr +#endif + static string_view_t level_string_views[] SPDLOG_LEVEL_NAMES; static const char *short_level_names[] SPDLOG_SHORT_LEVEL_NAMES; -SPDLOG_INLINE string_view_t &to_string_view(spdlog::level::level_enum l) SPDLOG_NOEXCEPT -{ +SPDLOG_INLINE const string_view_t &to_string_view(spdlog::level::level_enum l) SPDLOG_NOEXCEPT { return level_string_views[l]; } -SPDLOG_INLINE const char *to_short_c_str(spdlog::level::level_enum l) SPDLOG_NOEXCEPT -{ +SPDLOG_INLINE const char *to_short_c_str(spdlog::level::level_enum l) SPDLOG_NOEXCEPT { return short_level_names[l]; } -SPDLOG_INLINE spdlog::level::level_enum from_str(const std::string &name) SPDLOG_NOEXCEPT -{ - int level = 0; - for (const auto &level_str : level_string_views) - { - if (level_str == name) - { - return static_cast(level); - } - level++; +SPDLOG_INLINE spdlog::level::level_enum from_str(const std::string &name) SPDLOG_NOEXCEPT { + auto it = std::find(std::begin(level_string_views), std::end(level_string_views), name); + if (it != std::end(level_string_views)) + return static_cast(std::distance(std::begin(level_string_views), it)); + + // check also for "warn" and "err" before giving up.. + if (name == "warn") { + return level::warn; + } + if (name == "err") { + return level::err; } return level::off; } -} // namespace level +} // namespace level SPDLOG_INLINE spdlog_ex::spdlog_ex(std::string msg) - : msg_(std::move(msg)) -{} + : msg_(std::move(msg)) {} -SPDLOG_INLINE spdlog_ex::spdlog_ex(const std::string &msg, int last_errno) -{ +SPDLOG_INLINE spdlog_ex::spdlog_ex(const std::string &msg, int last_errno) { +#ifdef SPDLOG_USE_STD_FORMAT + msg_ = std::system_error(std::error_code(last_errno, std::generic_category()), msg).what(); +#else memory_buf_t outbuf; - fmt::format_system_error(outbuf, last_errno, msg); + fmt::format_system_error(outbuf, last_errno, msg.c_str()); msg_ = fmt::to_string(outbuf); +#endif } -SPDLOG_INLINE const char *spdlog_ex::what() const SPDLOG_NOEXCEPT -{ - return msg_.c_str(); +SPDLOG_INLINE const char *spdlog_ex::what() const SPDLOG_NOEXCEPT { return msg_.c_str(); } + +SPDLOG_INLINE void throw_spdlog_ex(const std::string &msg, int last_errno) { + SPDLOG_THROW(spdlog_ex(msg, last_errno)); } -} // namespace spdlog +SPDLOG_INLINE void throw_spdlog_ex(std::string msg) { SPDLOG_THROW(spdlog_ex(std::move(msg))); } + +} // namespace spdlog diff --git a/Source/ThirdParty/spdlog/common.h b/Source/ThirdParty/spdlog/common.h index 13fbe9704..20dbca453 100644 --- a/Source/ThirdParty/spdlog/common.h +++ b/Source/ThirdParty/spdlog/common.h @@ -3,41 +3,65 @@ #pragma once -#include "spdlog/tweakme.h" -#include "spdlog/details/null_mutex.h" +#include +#include #include #include +#include +#include +#include #include #include -#include #include #include -#include -#ifdef _WIN32 -#ifndef NOMINMAX -#define NOMINMAX // prevent windows redefining min/max +#ifdef SPDLOG_USE_STD_FORMAT +#include +#if __cpp_lib_format >= 202207L +#include +#else +#include #endif - -#ifndef WIN32_LEAN_AND_MEAN -#define WIN32_LEAN_AND_MEAN #endif -#include -#endif //_WIN32 - #ifdef SPDLOG_COMPILED_LIB #undef SPDLOG_HEADER_ONLY +#if defined(SPDLOG_SHARED_LIB) +#if defined(_WIN32) +#ifdef spdlog_EXPORTS +#define SPDLOG_API __declspec(dllexport) +#else // !spdlog_EXPORTS +#define SPDLOG_API __declspec(dllimport) +#endif +#else // !defined(_WIN32) +#define SPDLOG_API __attribute__((visibility("default"))) +#endif +#else // !defined(SPDLOG_SHARED_LIB) +#define SPDLOG_API +#endif #define SPDLOG_INLINE -#else +#else // !defined(SPDLOG_COMPILED_LIB) +#define SPDLOG_API #define SPDLOG_HEADER_ONLY #define SPDLOG_INLINE inline -#endif +#endif // #ifdef SPDLOG_COMPILED_LIB -#include "spdlog/fmt/fmt.h" +#include -// visual studio upto 2013 does not support noexcept nor constexpr +#if !defined(SPDLOG_USE_STD_FORMAT) && \ + FMT_VERSION >= 80000 // backward compatibility with fmt versions older than 8 +#define SPDLOG_FMT_RUNTIME(format_string) fmt::runtime(format_string) +#define SPDLOG_FMT_STRING(format_string) FMT_STRING(format_string) +#if defined(SPDLOG_WCHAR_FILENAMES) || defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) +#include +#endif +#else +#define SPDLOG_FMT_RUNTIME(format_string) format_string +#define SPDLOG_FMT_STRING(format_string) format_string +#endif + +// visual studio up to 2013 does not support noexcept nor constexpr #if defined(_MSC_VER) && (_MSC_VER < 1900) #define SPDLOG_NOEXCEPT _NOEXCEPT #define SPDLOG_CONSTEXPR @@ -46,6 +70,21 @@ #define SPDLOG_CONSTEXPR constexpr #endif +// If building with std::format, can just use constexpr, otherwise if building with fmt +// SPDLOG_CONSTEXPR_FUNC needs to be set the same as FMT_CONSTEXPR to avoid situations where +// a constexpr function in spdlog could end up calling a non-constexpr function in fmt +// depending on the compiler +// If fmt determines it can't use constexpr, we should inline the function instead +#ifdef SPDLOG_USE_STD_FORMAT +#define SPDLOG_CONSTEXPR_FUNC constexpr +#else // Being built with fmt +#if FMT_USE_CONSTEXPR +#define SPDLOG_CONSTEXPR_FUNC FMT_CONSTEXPR +#else +#define SPDLOG_CONSTEXPR_FUNC inline +#endif +#endif + #if defined(__GNUC__) || defined(__clang__) #define SPDLOG_DEPRECATED __attribute__((deprecated)) #elif defined(_MSC_VER) @@ -62,22 +101,23 @@ #endif #ifndef SPDLOG_FUNCTION -#define SPDLOG_FUNCTION __FUNCTION__ +#define SPDLOG_FUNCTION static_cast(__FUNCTION__) #endif #ifdef SPDLOG_NO_EXCEPTIONS #define SPDLOG_TRY -#define SPDLOG_THROW(ex) \ - do \ - { \ - printf("spdlog fatal error: %s\n", ex.what()); \ - std::abort(); \ +#define SPDLOG_THROW(ex) \ + do { \ + printf("spdlog fatal error: %s\n", ex.what()); \ + std::abort(); \ } while (0) -#define SPDLOG_CATCH_ALL() +#define SPDLOG_CATCH_STD #else #define SPDLOG_TRY try #define SPDLOG_THROW(ex) throw(ex) -#define SPDLOG_CATCH_ALL() catch (...) +#define SPDLOG_CATCH_STD \ + catch (const std::exception &) { \ + } #endif namespace spdlog { @@ -90,7 +130,9 @@ class sink; #if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES) using filename_t = std::wstring; -#define SPDLOG_FILENAME_T(s) L##s +// allow macro expansion to occur in SPDLOG_FILENAME_T +#define SPDLOG_FILENAME_T_INNER(s) L##s +#define SPDLOG_FILENAME_T(s) SPDLOG_FILENAME_T_INNER(s) #else using filename_t = std::string; #define SPDLOG_FILENAME_T(s) s @@ -100,23 +142,85 @@ using log_clock = std::chrono::system_clock; using sink_ptr = std::shared_ptr; using sinks_init_list = std::initializer_list; using err_handler = std::function; +#ifdef SPDLOG_USE_STD_FORMAT +namespace fmt_lib = std; + +using string_view_t = std::string_view; +using memory_buf_t = std::string; + +template +#if __cpp_lib_format >= 202207L +using format_string_t = std::format_string; +#else +using format_string_t = std::string_view; +#endif + +template +struct is_convertible_to_basic_format_string + : std::integral_constant>::value> {}; + +#if defined(SPDLOG_WCHAR_FILENAMES) || defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) +using wstring_view_t = std::wstring_view; +using wmemory_buf_t = std::wstring; + +template +#if __cpp_lib_format >= 202207L +using wformat_string_t = std::wformat_string; +#else +using wformat_string_t = std::wstring_view; +#endif +#endif +#define SPDLOG_BUF_TO_STRING(x) x +#else // use fmt lib instead of std::format +namespace fmt_lib = fmt; + using string_view_t = fmt::basic_string_view; -using wstring_view_t = fmt::basic_string_view; using memory_buf_t = fmt::basic_memory_buffer; +template +using format_string_t = fmt::format_string; + +template +using remove_cvref_t = typename std::remove_cv::type>::type; + +template +#if FMT_VERSION >= 90101 +using fmt_runtime_string = fmt::runtime_format_string; +#else +using fmt_runtime_string = fmt::basic_runtime; +#endif + +// clang doesn't like SFINAE disabled constructor in std::is_convertible<> so have to repeat the +// condition from basic_format_string here, in addition, fmt::basic_runtime is only +// convertible to basic_format_string but not basic_string_view +template +struct is_convertible_to_basic_format_string + : std::integral_constant>::value || + std::is_same, fmt_runtime_string>::value> { +}; + +#if defined(SPDLOG_WCHAR_FILENAMES) || defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) +using wstring_view_t = fmt::basic_string_view; +using wmemory_buf_t = fmt::basic_memory_buffer; + +template +using wformat_string_t = fmt::wformat_string; +#endif +#define SPDLOG_BUF_TO_STRING(x) fmt::to_string(x) +#endif + #ifdef SPDLOG_WCHAR_TO_UTF8_SUPPORT #ifndef _WIN32 #error SPDLOG_WCHAR_TO_UTF8_SUPPORT only supported on windows -#else -template -struct is_convertible_to_wstring_view : std::is_convertible -{}; -#endif // _WIN32 -#else -template -struct is_convertible_to_wstring_view : std::false_type -{}; -#endif // SPDLOG_WCHAR_TO_UTF8_SUPPORT +#endif // _WIN32 +#endif // SPDLOG_WCHAR_TO_UTF8_SUPPORT + +template +struct is_convertible_to_any_format_string + : std::integral_constant::value || + is_convertible_to_basic_format_string::value> {}; #if defined(SPDLOG_NO_ATOMIC_LEVELS) using level_t = details::null_atomic_int; @@ -138,8 +242,7 @@ using level_t = std::atomic; // Log level enum namespace level { -enum level_enum -{ +enum level_enum : int { trace = SPDLOG_LEVEL_TRACE, debug = SPDLOG_LEVEL_DEBUG, info = SPDLOG_LEVEL_INFO, @@ -147,55 +250,56 @@ enum level_enum err = SPDLOG_LEVEL_ERROR, critical = SPDLOG_LEVEL_CRITICAL, off = SPDLOG_LEVEL_OFF, + n_levels }; +#define SPDLOG_LEVEL_NAME_TRACE spdlog::string_view_t("trace", 5) +#define SPDLOG_LEVEL_NAME_DEBUG spdlog::string_view_t("debug", 5) +#define SPDLOG_LEVEL_NAME_INFO spdlog::string_view_t("info", 4) +#define SPDLOG_LEVEL_NAME_WARNING spdlog::string_view_t("warning", 7) +#define SPDLOG_LEVEL_NAME_ERROR spdlog::string_view_t("error", 5) +#define SPDLOG_LEVEL_NAME_CRITICAL spdlog::string_view_t("critical", 8) +#define SPDLOG_LEVEL_NAME_OFF spdlog::string_view_t("off", 3) + #if !defined(SPDLOG_LEVEL_NAMES) -#define SPDLOG_LEVEL_NAMES \ - { \ - "trace", "debug", "info", "warning", "error", "critical", "off" \ +#define SPDLOG_LEVEL_NAMES \ + { \ + SPDLOG_LEVEL_NAME_TRACE, SPDLOG_LEVEL_NAME_DEBUG, SPDLOG_LEVEL_NAME_INFO, \ + SPDLOG_LEVEL_NAME_WARNING, SPDLOG_LEVEL_NAME_ERROR, SPDLOG_LEVEL_NAME_CRITICAL, \ + SPDLOG_LEVEL_NAME_OFF \ } #endif #if !defined(SPDLOG_SHORT_LEVEL_NAMES) -#define SPDLOG_SHORT_LEVEL_NAMES \ - { \ - "T", "D", "I", "W", "E", "C", "O" \ - } +#define SPDLOG_SHORT_LEVEL_NAMES \ + { "T", "D", "I", "W", "E", "C", "O" } #endif -string_view_t &to_string_view(spdlog::level::level_enum l) SPDLOG_NOEXCEPT; -const char *to_short_c_str(spdlog::level::level_enum l) SPDLOG_NOEXCEPT; -spdlog::level::level_enum from_str(const std::string &name) SPDLOG_NOEXCEPT; +SPDLOG_API const string_view_t &to_string_view(spdlog::level::level_enum l) SPDLOG_NOEXCEPT; +SPDLOG_API const char *to_short_c_str(spdlog::level::level_enum l) SPDLOG_NOEXCEPT; +SPDLOG_API spdlog::level::level_enum from_str(const std::string &name) SPDLOG_NOEXCEPT; -using level_hasher = std::hash; -} // namespace level +} // namespace level // // Color mode used by sinks with color support. // -enum class color_mode -{ - always, - automatic, - never -}; +enum class color_mode { always, automatic, never }; // // Pattern time - specific time getting to use for pattern_formatter. // local time by default // -enum class pattern_time_type -{ - local, // log localtime - utc // log utc +enum class pattern_time_type { + local, // log localtime + utc // log utc }; // // Log exception // -class spdlog_ex : public std::exception -{ +class SPDLOG_API spdlog_ex : public std::exception { public: explicit spdlog_ex(std::string msg); spdlog_ex(const std::string &msg, int last_errno); @@ -205,40 +309,97 @@ class spdlog_ex : public std::exception std::string msg_; }; -struct source_loc -{ +[[noreturn]] SPDLOG_API void throw_spdlog_ex(const std::string &msg, int last_errno); +[[noreturn]] SPDLOG_API void throw_spdlog_ex(std::string msg); + +struct source_loc { SPDLOG_CONSTEXPR source_loc() = default; SPDLOG_CONSTEXPR source_loc(const char *filename_in, int line_in, const char *funcname_in) - : filename{filename_in} - , line{line_in} - , funcname{funcname_in} - {} - - SPDLOG_CONSTEXPR bool empty() const SPDLOG_NOEXCEPT - { - return line == 0; - } + : filename{filename_in}, + line{line_in}, + funcname{funcname_in} {} + + SPDLOG_CONSTEXPR bool empty() const SPDLOG_NOEXCEPT { return line <= 0; } const char *filename{nullptr}; int line{0}; const char *funcname{nullptr}; }; +struct file_event_handlers { + file_event_handlers() + : before_open(nullptr), + after_open(nullptr), + before_close(nullptr), + after_close(nullptr) {} + + std::function before_open; + std::function after_open; + std::function before_close; + std::function after_close; +}; + namespace details { -// make_unique support for pre c++14 -#if __cplusplus >= 201402L // C++14 and beyond +// to_string_view + +SPDLOG_CONSTEXPR_FUNC spdlog::string_view_t to_string_view(const memory_buf_t &buf) + SPDLOG_NOEXCEPT { + return spdlog::string_view_t{buf.data(), buf.size()}; +} + +SPDLOG_CONSTEXPR_FUNC spdlog::string_view_t to_string_view(spdlog::string_view_t str) + SPDLOG_NOEXCEPT { + return str; +} + +#if defined(SPDLOG_WCHAR_FILENAMES) || defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) +SPDLOG_CONSTEXPR_FUNC spdlog::wstring_view_t to_string_view(const wmemory_buf_t &buf) + SPDLOG_NOEXCEPT { + return spdlog::wstring_view_t{buf.data(), buf.size()}; +} + +SPDLOG_CONSTEXPR_FUNC spdlog::wstring_view_t to_string_view(spdlog::wstring_view_t str) + SPDLOG_NOEXCEPT { + return str; +} +#endif + +#if defined(SPDLOG_USE_STD_FORMAT) && __cpp_lib_format >= 202207L +template +SPDLOG_CONSTEXPR_FUNC std::basic_string_view to_string_view( + std::basic_format_string fmt) SPDLOG_NOEXCEPT { + return fmt.get(); +} +#endif + +// make_unique support for pre c++14 +#if __cplusplus >= 201402L // C++14 and beyond +using std::enable_if_t; using std::make_unique; #else -template -std::unique_ptr make_unique(Args &&... args) -{ +template +using enable_if_t = typename std::enable_if::type; + +template +std::unique_ptr make_unique(Args &&...args) { static_assert(!std::is_array::value, "arrays not supported"); return std::unique_ptr(new T(std::forward(args)...)); } #endif -} // namespace details -} // namespace spdlog +// to avoid useless casts (see https://github.com/nlohmann/json/issues/2893#issuecomment-889152324) +template ::value, int> = 0> +constexpr T conditional_static_cast(U value) { + return static_cast(value); +} + +template ::value, int> = 0> +constexpr T conditional_static_cast(U value) { + return value; +} + +} // namespace details +} // namespace spdlog #ifdef SPDLOG_HEADER_ONLY #include "common-inl.h" diff --git a/Source/ThirdParty/spdlog/details/backtracer-inl.h b/Source/ThirdParty/spdlog/details/backtracer-inl.h index daf1ab339..baa06b6af 100644 --- a/Source/ThirdParty/spdlog/details/backtracer-inl.h +++ b/Source/ThirdParty/spdlog/details/backtracer-inl.h @@ -4,71 +4,60 @@ #pragma once #ifndef SPDLOG_HEADER_ONLY -#include "spdlog/details/backtracer.h" +#include #endif namespace spdlog { namespace details { -SPDLOG_INLINE backtracer::backtracer(const backtracer &other) -{ +SPDLOG_INLINE backtracer::backtracer(const backtracer &other) { std::lock_guard lock(other.mutex_); enabled_ = other.enabled(); messages_ = other.messages_; } -SPDLOG_INLINE backtracer::backtracer(backtracer &&other) SPDLOG_NOEXCEPT -{ +SPDLOG_INLINE backtracer::backtracer(backtracer &&other) SPDLOG_NOEXCEPT { std::lock_guard lock(other.mutex_); enabled_ = other.enabled(); messages_ = std::move(other.messages_); } -SPDLOG_INLINE backtracer &backtracer::operator=(backtracer other) -{ +SPDLOG_INLINE backtracer &backtracer::operator=(backtracer other) { std::lock_guard lock(mutex_); enabled_ = other.enabled(); - messages_ = other.messages_; + messages_ = std::move(other.messages_); return *this; } -SPDLOG_INLINE void backtracer::enable(size_t size) -{ +SPDLOG_INLINE void backtracer::enable(size_t size) { std::lock_guard lock{mutex_}; enabled_.store(true, std::memory_order_relaxed); messages_ = circular_q{size}; } -SPDLOG_INLINE void backtracer::disable() -{ +SPDLOG_INLINE void backtracer::disable() { std::lock_guard lock{mutex_}; enabled_.store(false, std::memory_order_relaxed); } -SPDLOG_INLINE bool backtracer::enabled() const -{ - return enabled_.load(std::memory_order_relaxed); -} +SPDLOG_INLINE bool backtracer::enabled() const { return enabled_.load(std::memory_order_relaxed); } -SPDLOG_INLINE backtracer::operator bool() const -{ - return enabled(); +SPDLOG_INLINE void backtracer::push_back(const log_msg &msg) { + std::lock_guard lock{mutex_}; + messages_.push_back(log_msg_buffer{msg}); } -SPDLOG_INLINE void backtracer::push_back(const log_msg &msg) -{ +SPDLOG_INLINE bool backtracer::empty() const { std::lock_guard lock{mutex_}; - messages_.push_back(log_msg_buffer{msg}); + return messages_.empty(); } // pop all items in the q and apply the given fun on each of them. -SPDLOG_INLINE void backtracer::foreach_pop(std::function fun) -{ +SPDLOG_INLINE void backtracer::foreach_pop(std::function fun) { std::lock_guard lock{mutex_}; - while (!messages_.empty()) - { + while (!messages_.empty()) { auto &front_msg = messages_.front(); fun(front_msg); messages_.pop_front(); } } -} // namespace details -} // namespace spdlog +} // namespace details +} // namespace spdlog diff --git a/Source/ThirdParty/spdlog/details/backtracer.h b/Source/ThirdParty/spdlog/details/backtracer.h index cf813fe66..f9eb4b43c 100644 --- a/Source/ThirdParty/spdlog/details/backtracer.h +++ b/Source/ThirdParty/spdlog/details/backtracer.h @@ -3,20 +3,19 @@ #pragma once -#include "spdlog/details/log_msg_buffer.h" -#include "spdlog/details/circular_q.h" +#include +#include #include -#include #include +#include // Store log messages in circular buffer. // Useful for storing debug data in case of error/warning happens. namespace spdlog { namespace details { -class backtracer -{ +class SPDLOG_API backtracer { mutable std::mutex mutex_; std::atomic enabled_{false}; circular_q messages_; @@ -31,16 +30,16 @@ class backtracer void enable(size_t size); void disable(); bool enabled() const; - explicit operator bool() const; void push_back(const log_msg &msg); + bool empty() const; // pop all items in the q and apply the given fun on each of them. void foreach_pop(std::function fun); }; -} // namespace details -} // namespace spdlog +} // namespace details +} // namespace spdlog #ifdef SPDLOG_HEADER_ONLY #include "backtracer-inl.h" -#endif \ No newline at end of file +#endif diff --git a/Source/ThirdParty/spdlog/details/circular_q.h b/Source/ThirdParty/spdlog/details/circular_q.h index fee3a3bf3..29e9d255f 100644 --- a/Source/ThirdParty/spdlog/details/circular_q.h +++ b/Source/ThirdParty/spdlog/details/circular_q.h @@ -1,16 +1,18 @@ // Copyright(c) 2015-present, Gabi Melman & spdlog contributors. // Distributed under the MIT License (http://opensource.org/licenses/MIT) -// cirucal q view of std::vector. +// circular q view of std::vector. #pragma once +#include #include +#include "spdlog/common.h" + namespace spdlog { namespace details { -template -class circular_q -{ +template +class circular_q { size_t max_items_ = 0; typename std::vector::size_type head_ = 0; typename std::vector::size_type tail_ = 0; @@ -24,35 +26,29 @@ class circular_q circular_q() = default; explicit circular_q(size_t max_items) - : max_items_(max_items + 1) // one item is reserved as marker for full q - , v_(max_items_) - {} + : max_items_(max_items + 1) // one item is reserved as marker for full q + , + v_(max_items_) {} circular_q(const circular_q &) = default; circular_q &operator=(const circular_q &) = default; // move cannot be default, // since we need to reset head_, tail_, etc to zero in the moved object - circular_q(circular_q &&other) SPDLOG_NOEXCEPT - { - copy_moveable(std::move(other)); - } + circular_q(circular_q &&other) SPDLOG_NOEXCEPT { copy_moveable(std::move(other)); } - circular_q &operator=(circular_q &&other) SPDLOG_NOEXCEPT - { + circular_q &operator=(circular_q &&other) SPDLOG_NOEXCEPT { copy_moveable(std::move(other)); return *this; } // push back, overrun (oldest) item if no room left - void push_back(T &&item) - { - if (max_items_ > 0) - { + void push_back(T &&item) { + if (max_items_ > 0) { v_[tail_] = std::move(item); tail_ = (tail_ + 1) % max_items_; - if (tail_ == head_) // overrun last item if full + if (tail_ == head_) // overrun last item if full { head_ = (head_ + 1) % max_items_; ++overrun_counter_; @@ -62,47 +58,47 @@ class circular_q // Return reference to the front item. // If there are no elements in the container, the behavior is undefined. - const T &front() const - { - return v_[head_]; + const T &front() const { return v_[head_]; } + + T &front() { return v_[head_]; } + + // Return number of elements actually stored + size_t size() const { + if (tail_ >= head_) { + return tail_ - head_; + } else { + return max_items_ - (head_ - tail_); + } } - T &front() - { - return v_[head_]; + // Return const reference to item by index. + // If index is out of range 0…size()-1, the behavior is undefined. + const T &at(size_t i) const { + assert(i < size()); + return v_[(head_ + i) % max_items_]; } // Pop item from front. // If there are no elements in the container, the behavior is undefined. - void pop_front() - { - head_ = (head_ + 1) % max_items_; - } + void pop_front() { head_ = (head_ + 1) % max_items_; } - bool empty() const - { - return tail_ == head_; - } + bool empty() const { return tail_ == head_; } - bool full() const - { + bool full() const { // head is ahead of the tail by 1 - if (max_items_ > 0) - { + if (max_items_ > 0) { return ((tail_ + 1) % max_items_) == head_; } return false; } - size_t overrun_counter() const - { - return overrun_counter_; - } + size_t overrun_counter() const { return overrun_counter_; } + + void reset_overrun_counter() { overrun_counter_ = 0; } private: // copy from other&& and reset it to disabled state - void copy_moveable(circular_q &&other) SPDLOG_NOEXCEPT - { + void copy_moveable(circular_q &&other) SPDLOG_NOEXCEPT { max_items_ = other.max_items_; head_ = other.head_; tail_ = other.tail_; @@ -115,5 +111,5 @@ class circular_q other.overrun_counter_ = 0; } }; -} // namespace details -} // namespace spdlog +} // namespace details +} // namespace spdlog diff --git a/Source/ThirdParty/spdlog/details/console_globals.h b/Source/ThirdParty/spdlog/details/console_globals.h index 6761a30d0..9c552106a 100644 --- a/Source/ThirdParty/spdlog/details/console_globals.h +++ b/Source/ThirdParty/spdlog/details/console_globals.h @@ -3,30 +3,26 @@ #pragma once -#include "spdlog/details/null_mutex.h" #include +#include namespace spdlog { namespace details { -struct console_mutex -{ +struct console_mutex { using mutex_t = std::mutex; - static mutex_t &mutex() - { + static mutex_t &mutex() { static mutex_t s_mutex; return s_mutex; } }; -struct console_nullmutex -{ +struct console_nullmutex { using mutex_t = null_mutex; - static mutex_t &mutex() - { + static mutex_t &mutex() { static mutex_t s_mutex; return s_mutex; } }; -} // namespace details -} // namespace spdlog +} // namespace details +} // namespace spdlog diff --git a/Source/ThirdParty/spdlog/details/file_helper-inl.h b/Source/ThirdParty/spdlog/details/file_helper-inl.h index d8c9cab48..c7260ec3b 100644 --- a/Source/ThirdParty/spdlog/details/file_helper-inl.h +++ b/Source/ThirdParty/spdlog/details/file_helper-inl.h @@ -4,96 +4,115 @@ #pragma once #ifndef SPDLOG_HEADER_ONLY -#include "spdlog/details/file_helper.h" +#include #endif -#include "spdlog/details/os.h" -#include "spdlog/common.h" +#include +#include #include -#include #include #include -#include #include namespace spdlog { namespace details { -SPDLOG_INLINE file_helper::~file_helper() -{ - close(); -} +SPDLOG_INLINE file_helper::file_helper(const file_event_handlers &event_handlers) + : event_handlers_(event_handlers) {} + +SPDLOG_INLINE file_helper::~file_helper() { close(); } -SPDLOG_INLINE void file_helper::open(const filename_t &fname, bool truncate) -{ +SPDLOG_INLINE void file_helper::open(const filename_t &fname, bool truncate) { close(); - auto *mode = truncate ? SPDLOG_FILENAME_T("wb") : SPDLOG_FILENAME_T("ab"); - _filename = fname; - for (int tries = 0; tries < open_tries; ++tries) - { - if (!os::fopen_s(&fd_, fname, mode)) - { + filename_ = fname; + + auto *mode = SPDLOG_FILENAME_T("ab"); + auto *trunc_mode = SPDLOG_FILENAME_T("wb"); + + if (event_handlers_.before_open) { + event_handlers_.before_open(filename_); + } + for (int tries = 0; tries < open_tries_; ++tries) { + // create containing folder if not exists already. + os::create_dir(os::dir_name(fname)); + if (truncate) { + // Truncate by opening-and-closing a tmp file in "wb" mode, always + // opening the actual log-we-write-to in "ab" mode, since that + // interacts more politely with eternal processes that might + // rotate/truncate the file underneath us. + std::FILE *tmp; + if (os::fopen_s(&tmp, fname, trunc_mode)) { + continue; + } + std::fclose(tmp); + } + if (!os::fopen_s(&fd_, fname, mode)) { + if (event_handlers_.after_open) { + event_handlers_.after_open(filename_, fd_); + } return; } - details::os::sleep_for_millis(open_interval); + details::os::sleep_for_millis(open_interval_); } - SPDLOG_THROW(spdlog_ex("Failed opening file " + os::filename_to_str(_filename) + " for writing", errno)); + throw_spdlog_ex("Failed opening file " + os::filename_to_str(filename_) + " for writing", + errno); +} + +SPDLOG_INLINE void file_helper::reopen(bool truncate) { + if (filename_.empty()) { + throw_spdlog_ex("Failed re opening file - was not opened before"); + } + this->open(filename_, truncate); } -SPDLOG_INLINE void file_helper::reopen(bool truncate) -{ - if (_filename.empty()) - { - SPDLOG_THROW(spdlog_ex("Failed re opening file - was not opened before")); +SPDLOG_INLINE void file_helper::flush() { + if (std::fflush(fd_) != 0) { + throw_spdlog_ex("Failed flush to file " + os::filename_to_str(filename_), errno); } - open(_filename, truncate); } -SPDLOG_INLINE void file_helper::flush() -{ - std::fflush(fd_); +SPDLOG_INLINE void file_helper::sync() { + if (!os::fsync(fd_)) { + throw_spdlog_ex("Failed to fsync file " + os::filename_to_str(filename_), errno); + } } -SPDLOG_INLINE void file_helper::close() -{ - if (fd_ != nullptr) - { +SPDLOG_INLINE void file_helper::close() { + if (fd_ != nullptr) { + if (event_handlers_.before_close) { + event_handlers_.before_close(filename_, fd_); + } + std::fclose(fd_); fd_ = nullptr; + + if (event_handlers_.after_close) { + event_handlers_.after_close(filename_); + } } } -SPDLOG_INLINE void file_helper::write(const memory_buf_t &buf) -{ +SPDLOG_INLINE void file_helper::write(const memory_buf_t &buf) { + if (fd_ == nullptr) return; size_t msg_size = buf.size(); auto data = buf.data(); - if (std::fwrite(data, 1, msg_size, fd_) != msg_size) - { - SPDLOG_THROW(spdlog_ex("Failed writing to file " + os::filename_to_str(_filename), errno)); + + if (!details::os::fwrite_bytes(data, msg_size, fd_)) { + throw_spdlog_ex("Failed writing to file " + os::filename_to_str(filename_), errno); } } -SPDLOG_INLINE size_t file_helper::size() const -{ - if (fd_ == nullptr) - { - SPDLOG_THROW(spdlog_ex("Cannot use size() on closed file " + os::filename_to_str(_filename))); +SPDLOG_INLINE size_t file_helper::size() const { + if (fd_ == nullptr) { + throw_spdlog_ex("Cannot use size() on closed file " + os::filename_to_str(filename_)); } return os::filesize(fd_); } -SPDLOG_INLINE const filename_t &file_helper::filename() const -{ - return _filename; -} - -SPDLOG_INLINE bool file_helper::file_exists(const filename_t &fname) -{ - return os::file_exists(fname); -} +SPDLOG_INLINE const filename_t &file_helper::filename() const { return filename_; } // // return file path and its extension: @@ -108,26 +127,25 @@ SPDLOG_INLINE bool file_helper::file_exists(const filename_t &fname) // ".mylog" => (".mylog". "") // "my_folder/.mylog" => ("my_folder/.mylog", "") // "my_folder/.mylog.txt" => ("my_folder/.mylog", ".txt") -SPDLOG_INLINE std::tuple file_helper::split_by_extension(const filename_t &fname) -{ +SPDLOG_INLINE std::tuple file_helper::split_by_extension( + const filename_t &fname) { auto ext_index = fname.rfind('.'); // no valid extension found - return whole path and empty string as // extension - if (ext_index == filename_t::npos || ext_index == 0 || ext_index == fname.size() - 1) - { + if (ext_index == filename_t::npos || ext_index == 0 || ext_index == fname.size() - 1) { return std::make_tuple(fname, filename_t()); } - // treat casese like "/etc/rc.d/somelogfile or "/abc/.hiddenfile" - auto folder_index = fname.rfind(details::os::folder_sep); - if (folder_index != filename_t::npos && folder_index >= ext_index - 1) - { + // treat cases like "/etc/rc.d/somelogfile or "/abc/.hiddenfile" + auto folder_index = fname.find_last_of(details::os::folder_seps_filename); + if (folder_index != filename_t::npos && folder_index >= ext_index - 1) { return std::make_tuple(fname, filename_t()); } // finally - return a valid base and extension tuple return std::make_tuple(fname.substr(0, ext_index), fname.substr(ext_index)); } -} // namespace details -} // namespace spdlog + +} // namespace details +} // namespace spdlog diff --git a/Source/ThirdParty/spdlog/details/file_helper.h b/Source/ThirdParty/spdlog/details/file_helper.h index 990d99e3e..aba0be476 100644 --- a/Source/ThirdParty/spdlog/details/file_helper.h +++ b/Source/ThirdParty/spdlog/details/file_helper.h @@ -3,7 +3,7 @@ #pragma once -#include "spdlog/common.h" +#include #include namespace spdlog { @@ -13,10 +13,10 @@ namespace details { // When failing to open a file, retry several times(5) with a delay interval(10 ms). // Throw spdlog_ex exception on errors. -class file_helper -{ +class SPDLOG_API file_helper { public: - explicit file_helper() = default; + file_helper() = default; + explicit file_helper(const file_event_handlers &event_handlers); file_helper(const file_helper &) = delete; file_helper &operator=(const file_helper &) = delete; @@ -25,11 +25,11 @@ class file_helper void open(const filename_t &fname, bool truncate = false); void reopen(bool truncate); void flush(); + void sync(); void close(); void write(const memory_buf_t &buf); size_t size() const; const filename_t &filename() const; - static bool file_exists(const filename_t &fname); // // return file path and its extension: @@ -47,13 +47,14 @@ class file_helper static std::tuple split_by_extension(const filename_t &fname); private: - const int open_tries = 5; - const int open_interval = 10; + const int open_tries_ = 5; + const unsigned int open_interval_ = 10; std::FILE *fd_{nullptr}; - filename_t _filename; + filename_t filename_; + file_event_handlers event_handlers_; }; -} // namespace details -} // namespace spdlog +} // namespace details +} // namespace spdlog #ifdef SPDLOG_HEADER_ONLY #include "file_helper-inl.h" diff --git a/Source/ThirdParty/spdlog/details/fmt_helper.h b/Source/ThirdParty/spdlog/details/fmt_helper.h index 5298e0a78..b629b894d 100644 --- a/Source/ThirdParty/spdlog/details/fmt_helper.h +++ b/Source/ThirdParty/spdlog/details/fmt_helper.h @@ -3,102 +3,132 @@ #pragma once #include +#include +#include +#include #include -#include "spdlog/fmt/fmt.h" -#include "spdlog/common.h" + +#ifdef SPDLOG_USE_STD_FORMAT +#include +#include +#endif // Some fmt helpers to efficiently format and pad ints and strings namespace spdlog { namespace details { namespace fmt_helper { -inline spdlog::string_view_t to_string_view(const memory_buf_t &buf) SPDLOG_NOEXCEPT -{ - return spdlog::string_view_t{buf.data(), buf.size()}; +inline void append_string_view(spdlog::string_view_t view, memory_buf_t &dest) { + auto *buf_ptr = view.data(); + dest.append(buf_ptr, buf_ptr + view.size()); } -inline void append_string_view(spdlog::string_view_t view, memory_buf_t &dest) -{ - auto *buf_ptr = view.data(); - if (buf_ptr != nullptr) - { - dest.append(buf_ptr, buf_ptr + view.size()); +#ifdef SPDLOG_USE_STD_FORMAT +template +inline void append_int(T n, memory_buf_t &dest) { + // Buffer should be large enough to hold all digits (digits10 + 1) and a sign + SPDLOG_CONSTEXPR const auto BUF_SIZE = std::numeric_limits::digits10 + 2; + char buf[BUF_SIZE]; + + auto [ptr, ec] = std::to_chars(buf, buf + BUF_SIZE, n, 10); + if (ec == std::errc()) { + dest.append(buf, ptr); + } else { + throw_spdlog_ex("Failed to format int", static_cast(ec)); } } - -template -inline void append_int(T n, memory_buf_t &dest) -{ +#else +template +inline void append_int(T n, memory_buf_t &dest) { fmt::format_int i(n); dest.append(i.data(), i.data() + i.size()); } +#endif -template -inline unsigned count_digits(T n) -{ - using count_type = typename std::conditional<(sizeof(T) > sizeof(uint32_t)), uint64_t, uint32_t>::type; - return static_cast(fmt::internal::count_digits(static_cast(n))); +template +SPDLOG_CONSTEXPR_FUNC unsigned int count_digits_fallback(T n) { + // taken from fmt: https://github.com/fmtlib/fmt/blob/8.0.1/include/fmt/format.h#L899-L912 + unsigned int count = 1; + for (;;) { + // Integer division is slow so do it for a group of four digits instead + // of for every digit. The idea comes from the talk by Alexandrescu + // "Three Optimization Tips for C++". See speed-test for a comparison. + if (n < 10) return count; + if (n < 100) return count + 1; + if (n < 1000) return count + 2; + if (n < 10000) return count + 3; + n /= 10000u; + count += 4; + } } -inline void pad2(int n, memory_buf_t &dest) -{ - if (n > 99) - { - append_int(n, dest); - } - else if (n > 9) // 10-99 +template +inline unsigned int count_digits(T n) { + using count_type = + typename std::conditional<(sizeof(T) > sizeof(uint32_t)), uint64_t, uint32_t>::type; +#ifdef SPDLOG_USE_STD_FORMAT + return count_digits_fallback(static_cast(n)); +#else + return static_cast(fmt:: +// fmt 7.0.0 renamed the internal namespace to detail. +// See: https://github.com/fmtlib/fmt/issues/1538 +#if FMT_VERSION < 70000 + internal +#else + detail +#endif + ::count_digits(static_cast(n))); +#endif +} + +inline void pad2(int n, memory_buf_t &dest) { + if (n >= 0 && n < 100) // 0-99 { dest.push_back(static_cast('0' + n / 10)); dest.push_back(static_cast('0' + n % 10)); - } - else if (n >= 0) // 0-9 - { - dest.push_back('0'); - dest.push_back(static_cast('0' + n)); - } - else // negatives (unlikely, but just in case, let fmt deal with it) + } else // unlikely, but just in case, let fmt deal with it { - fmt::format_to(dest, "{:02}", n); + fmt_lib::format_to(std::back_inserter(dest), SPDLOG_FMT_STRING("{:02}"), n); } } -template -inline void pad_uint(T n, unsigned int width, memory_buf_t &dest) -{ +template +inline void pad_uint(T n, unsigned int width, memory_buf_t &dest) { static_assert(std::is_unsigned::value, "pad_uint must get unsigned T"); - auto digits = count_digits(n); - if (width > digits) - { - const char *zeroes = "0000000000000000000"; - dest.append(zeroes, zeroes + width - digits); + for (auto digits = count_digits(n); digits < width; digits++) { + dest.push_back('0'); } append_int(n, dest); } -template -inline void pad3(T n, memory_buf_t &dest) -{ - pad_uint(n, 3, dest); +template +inline void pad3(T n, memory_buf_t &dest) { + static_assert(std::is_unsigned::value, "pad3 must get unsigned T"); + if (n < 1000) { + dest.push_back(static_cast(n / 100 + '0')); + n = n % 100; + dest.push_back(static_cast((n / 10) + '0')); + dest.push_back(static_cast((n % 10) + '0')); + } else { + append_int(n, dest); + } } -template -inline void pad6(T n, memory_buf_t &dest) -{ +template +inline void pad6(T n, memory_buf_t &dest) { pad_uint(n, 6, dest); } -template -inline void pad9(T n, memory_buf_t &dest) -{ +template +inline void pad9(T n, memory_buf_t &dest) { pad_uint(n, 9, dest); } // return fraction of a second of the given time_point. // e.g. // fraction(tp) -> will return the millis part of the second -template -inline ToDuration time_fraction(log_clock::time_point tp) -{ +template +inline ToDuration time_fraction(log_clock::time_point tp) { using std::chrono::duration_cast; using std::chrono::seconds; auto duration = tp.time_since_epoch(); @@ -106,6 +136,6 @@ inline ToDuration time_fraction(log_clock::time_point tp) return duration_cast(duration) - duration_cast(secs); } -} // namespace fmt_helper -} // namespace details -} // namespace spdlog +} // namespace fmt_helper +} // namespace details +} // namespace spdlog diff --git a/Source/ThirdParty/spdlog/details/log_msg-inl.h b/Source/ThirdParty/spdlog/details/log_msg-inl.h index cb1305323..3a23dcf17 100644 --- a/Source/ThirdParty/spdlog/details/log_msg-inl.h +++ b/Source/ThirdParty/spdlog/details/log_msg-inl.h @@ -4,31 +4,41 @@ #pragma once #ifndef SPDLOG_HEADER_ONLY -#include "spdlog/details/log_msg.h" +#include #endif -#include "spdlog/details/os.h" +#include namespace spdlog { namespace details { -SPDLOG_INLINE log_msg::log_msg(spdlog::source_loc loc, string_view_t logger_name, spdlog::level::level_enum lvl, spdlog::string_view_t msg) - : logger_name(logger_name) - , level(lvl) -#ifndef SPDLOG_NO_DATETIME - , time(os::now()) -#endif - +SPDLOG_INLINE log_msg::log_msg(spdlog::log_clock::time_point log_time, + spdlog::source_loc loc, + string_view_t a_logger_name, + spdlog::level::level_enum lvl, + spdlog::string_view_t msg) + : logger_name(a_logger_name), + level(lvl), + time(log_time) #ifndef SPDLOG_NO_THREAD_ID - , thread_id(os::thread_id()) + , + thread_id(os::thread_id()) #endif - , source(loc) - , payload(msg) -{} - -SPDLOG_INLINE log_msg::log_msg(string_view_t logger_name, spdlog::level::level_enum lvl, spdlog::string_view_t msg) - : log_msg(source_loc{}, logger_name, lvl, msg) -{} - -} // namespace details -} // namespace spdlog + , + source(loc), + payload(msg) { +} + +SPDLOG_INLINE log_msg::log_msg(spdlog::source_loc loc, + string_view_t a_logger_name, + spdlog::level::level_enum lvl, + spdlog::string_view_t msg) + : log_msg(os::now(), loc, a_logger_name, lvl, msg) {} + +SPDLOG_INLINE log_msg::log_msg(string_view_t a_logger_name, + spdlog::level::level_enum lvl, + spdlog::string_view_t msg) + : log_msg(os::now(), source_loc{}, a_logger_name, lvl, msg) {} + +} // namespace details +} // namespace spdlog diff --git a/Source/ThirdParty/spdlog/details/log_msg.h b/Source/ThirdParty/spdlog/details/log_msg.h index ccd41ecb1..64b4bf6f4 100644 --- a/Source/ThirdParty/spdlog/details/log_msg.h +++ b/Source/ThirdParty/spdlog/details/log_msg.h @@ -3,17 +3,22 @@ #pragma once -#include "spdlog/common.h" +#include #include namespace spdlog { namespace details { -struct log_msg -{ +struct SPDLOG_API log_msg { log_msg() = default; + log_msg(log_clock::time_point log_time, + source_loc loc, + string_view_t logger_name, + level::level_enum lvl, + string_view_t msg); log_msg(source_loc loc, string_view_t logger_name, level::level_enum lvl, string_view_t msg); log_msg(string_view_t logger_name, level::level_enum lvl, string_view_t msg); log_msg(const log_msg &other) = default; + log_msg &operator=(const log_msg &other) = default; string_view_t logger_name; level::level_enum level{level::off}; @@ -27,8 +32,8 @@ struct log_msg source_loc source; string_view_t payload; }; -} // namespace details -} // namespace spdlog +} // namespace details +} // namespace spdlog #ifdef SPDLOG_HEADER_ONLY #include "log_msg-inl.h" diff --git a/Source/ThirdParty/spdlog/details/log_msg_buffer-inl.h b/Source/ThirdParty/spdlog/details/log_msg_buffer-inl.h index c8b9e5ef6..45c33835c 100644 --- a/Source/ThirdParty/spdlog/details/log_msg_buffer-inl.h +++ b/Source/ThirdParty/spdlog/details/log_msg_buffer-inl.h @@ -4,37 +4,33 @@ #pragma once #ifndef SPDLOG_HEADER_ONLY -#include "spdlog/details/log_msg_buffer.h" +#include #endif namespace spdlog { namespace details { SPDLOG_INLINE log_msg_buffer::log_msg_buffer(const log_msg &orig_msg) - : log_msg{orig_msg} -{ + : log_msg{orig_msg} { buffer.append(logger_name.begin(), logger_name.end()); buffer.append(payload.begin(), payload.end()); update_string_views(); } SPDLOG_INLINE log_msg_buffer::log_msg_buffer(const log_msg_buffer &other) - : log_msg{other} -{ + : log_msg{other} { buffer.append(logger_name.begin(), logger_name.end()); buffer.append(payload.begin(), payload.end()); update_string_views(); } -SPDLOG_INLINE log_msg_buffer::log_msg_buffer(log_msg_buffer &&other) - : log_msg{std::move(other)} - , buffer{std::move(other.buffer)} -{ +SPDLOG_INLINE log_msg_buffer::log_msg_buffer(log_msg_buffer &&other) SPDLOG_NOEXCEPT + : log_msg{other}, + buffer{std::move(other.buffer)} { update_string_views(); } -SPDLOG_INLINE log_msg_buffer &log_msg_buffer::operator=(const log_msg_buffer &other) -{ +SPDLOG_INLINE log_msg_buffer &log_msg_buffer::operator=(const log_msg_buffer &other) { log_msg::operator=(other); buffer.clear(); buffer.append(other.buffer.data(), other.buffer.data() + other.buffer.size()); @@ -42,19 +38,17 @@ SPDLOG_INLINE log_msg_buffer &log_msg_buffer::operator=(const log_msg_buffer &ot return *this; } -SPDLOG_INLINE log_msg_buffer &log_msg_buffer::operator=(log_msg_buffer &&other) -{ - log_msg::operator=(std::move(other)); +SPDLOG_INLINE log_msg_buffer &log_msg_buffer::operator=(log_msg_buffer &&other) SPDLOG_NOEXCEPT { + log_msg::operator=(other); buffer = std::move(other.buffer); update_string_views(); return *this; } -SPDLOG_INLINE void log_msg_buffer::update_string_views() -{ +SPDLOG_INLINE void log_msg_buffer::update_string_views() { logger_name = string_view_t{buffer.data(), logger_name.size()}; payload = string_view_t{buffer.data() + logger_name.size(), payload.size()}; } -} // namespace details -} // namespace spdlog +} // namespace details +} // namespace spdlog diff --git a/Source/ThirdParty/spdlog/details/log_msg_buffer.h b/Source/ThirdParty/spdlog/details/log_msg_buffer.h index 5ddcbc10b..c926cfaa8 100644 --- a/Source/ThirdParty/spdlog/details/log_msg_buffer.h +++ b/Source/ThirdParty/spdlog/details/log_msg_buffer.h @@ -3,16 +3,15 @@ #pragma once -#include "spdlog/details/log_msg.h" +#include namespace spdlog { namespace details { // Extend log_msg with internal buffer to store its payload. -// THis is needed since log_msg holds string_views that points to stack data. +// This is needed since log_msg holds string_views that points to stack data. -class log_msg_buffer : public log_msg -{ +class SPDLOG_API log_msg_buffer : public log_msg { memory_buf_t buffer; void update_string_views(); @@ -20,13 +19,13 @@ class log_msg_buffer : public log_msg log_msg_buffer() = default; explicit log_msg_buffer(const log_msg &orig_msg); log_msg_buffer(const log_msg_buffer &other); - log_msg_buffer(log_msg_buffer &&other); + log_msg_buffer(log_msg_buffer &&other) SPDLOG_NOEXCEPT; log_msg_buffer &operator=(const log_msg_buffer &other); - log_msg_buffer &operator=(log_msg_buffer &&other); + log_msg_buffer &operator=(log_msg_buffer &&other) SPDLOG_NOEXCEPT; }; -} // namespace details -} // namespace spdlog +} // namespace details +} // namespace spdlog #ifdef SPDLOG_HEADER_ONLY #include "log_msg_buffer-inl.h" diff --git a/Source/ThirdParty/spdlog/details/mpmc_blocking_q.h b/Source/ThirdParty/spdlog/details/mpmc_blocking_q.h index 397cd56c8..f153f6c2a 100644 --- a/Source/ThirdParty/spdlog/details/mpmc_blocking_q.h +++ b/Source/ThirdParty/spdlog/details/mpmc_blocking_q.h @@ -5,32 +5,30 @@ // multi producer-multi consumer blocking queue. // enqueue(..) - will block until room found to put the new message. -// enqueue_nowait(..) - will return immediately with false if no room left in -// the queue. +// enqueue_nowait(..) - enqueue immediately. overruns oldest message if no +// room left. // dequeue_for(..) - will block until the queue is not empty or timeout have // passed. -#include "spdlog/details/circular_q.h" +#include +#include #include #include namespace spdlog { namespace details { -template -class mpmc_blocking_queue -{ +template +class mpmc_blocking_queue { public: using item_type = T; explicit mpmc_blocking_queue(size_t max_items) - : q_(max_items) - {} + : q_(max_items) {} #ifndef __MINGW32__ // try to enqueue and block if no room left - void enqueue(T &&item) - { + void enqueue(T &&item) { { std::unique_lock lock(queue_mutex_); pop_cv_.wait(lock, [this] { return !this->q_.full(); }); @@ -40,8 +38,7 @@ class mpmc_blocking_queue } // enqueue immediately. overrun oldest message in the queue if no room left. - void enqueue_nowait(T &&item) - { + void enqueue_nowait(T &&item) { { std::unique_lock lock(queue_mutex_); q_.push_back(std::move(item)); @@ -49,14 +46,29 @@ class mpmc_blocking_queue push_cv_.notify_one(); } - // try to dequeue item. if no item found. wait upto timeout and try again + void enqueue_if_have_room(T &&item) { + bool pushed = false; + { + std::unique_lock lock(queue_mutex_); + if (!q_.full()) { + q_.push_back(std::move(item)); + pushed = true; + } + } + + if (pushed) { + push_cv_.notify_one(); + } else { + ++discard_counter_; + } + } + + // dequeue with a timeout. // Return true, if succeeded dequeue item, false otherwise - bool dequeue_for(T &popped_item, std::chrono::milliseconds wait_duration) - { + bool dequeue_for(T &popped_item, std::chrono::milliseconds wait_duration) { { std::unique_lock lock(queue_mutex_); - if (!push_cv_.wait_for(lock, wait_duration, [this] { return !this->q_.empty(); })) - { + if (!push_cv_.wait_for(lock, wait_duration, [this] { return !this->q_.empty(); })) { return false; } popped_item = std::move(q_.front()); @@ -66,13 +78,23 @@ class mpmc_blocking_queue return true; } + // blocking dequeue without a timeout. + void dequeue(T &popped_item) { + { + std::unique_lock lock(queue_mutex_); + push_cv_.wait(lock, [this] { return !this->q_.empty(); }); + popped_item = std::move(q_.front()); + q_.pop_front(); + } + pop_cv_.notify_one(); + } + #else // apparently mingw deadlocks if the mutex is released before cv.notify_one(), // so release the mutex at the very end each function. // try to enqueue and block if no room left - void enqueue(T &&item) - { + void enqueue(T &&item) { std::unique_lock lock(queue_mutex_); pop_cv_.wait(lock, [this] { return !this->q_.full(); }); q_.push_back(std::move(item)); @@ -80,20 +102,32 @@ class mpmc_blocking_queue } // enqueue immediately. overrun oldest message in the queue if no room left. - void enqueue_nowait(T &&item) - { + void enqueue_nowait(T &&item) { std::unique_lock lock(queue_mutex_); q_.push_back(std::move(item)); push_cv_.notify_one(); } - // try to dequeue item. if no item found. wait upto timeout and try again + void enqueue_if_have_room(T &&item) { + bool pushed = false; + std::unique_lock lock(queue_mutex_); + if (!q_.full()) { + q_.push_back(std::move(item)); + pushed = true; + } + + if (pushed) { + push_cv_.notify_one(); + } else { + ++discard_counter_; + } + } + + // dequeue with a timeout. // Return true, if succeeded dequeue item, false otherwise - bool dequeue_for(T &popped_item, std::chrono::milliseconds wait_duration) - { + bool dequeue_for(T &popped_item, std::chrono::milliseconds wait_duration) { std::unique_lock lock(queue_mutex_); - if (!push_cv_.wait_for(lock, wait_duration, [this] { return !this->q_.empty(); })) - { + if (!push_cv_.wait_for(lock, wait_duration, [this] { return !this->q_.empty(); })) { return false; } popped_item = std::move(q_.front()); @@ -102,19 +136,42 @@ class mpmc_blocking_queue return true; } + // blocking dequeue without a timeout. + void dequeue(T &popped_item) { + std::unique_lock lock(queue_mutex_); + push_cv_.wait(lock, [this] { return !this->q_.empty(); }); + popped_item = std::move(q_.front()); + q_.pop_front(); + pop_cv_.notify_one(); + } + #endif - size_t overrun_counter() - { - std::unique_lock lock(queue_mutex_); + size_t overrun_counter() { + std::lock_guard lock(queue_mutex_); return q_.overrun_counter(); } + size_t discard_counter() { return discard_counter_.load(std::memory_order_relaxed); } + + size_t size() { + std::lock_guard lock(queue_mutex_); + return q_.size(); + } + + void reset_overrun_counter() { + std::lock_guard lock(queue_mutex_); + q_.reset_overrun_counter(); + } + + void reset_discard_counter() { discard_counter_.store(0, std::memory_order_relaxed); } + private: std::mutex queue_mutex_; std::condition_variable push_cv_; std::condition_variable pop_cv_; spdlog::details::circular_q q_; + std::atomic discard_counter_{0}; }; -} // namespace details -} // namespace spdlog +} // namespace details +} // namespace spdlog diff --git a/Source/ThirdParty/spdlog/details/null_mutex.h b/Source/ThirdParty/spdlog/details/null_mutex.h index 83533d4fe..e3b322041 100644 --- a/Source/ThirdParty/spdlog/details/null_mutex.h +++ b/Source/ThirdParty/spdlog/details/null_mutex.h @@ -9,41 +9,27 @@ namespace spdlog { namespace details { -struct null_mutex -{ +struct null_mutex { void lock() const {} void unlock() const {} - bool try_lock() const - { - return true; - } }; -struct null_atomic_int -{ +struct null_atomic_int { int value; null_atomic_int() = default; explicit null_atomic_int(int new_value) - : value(new_value) - {} + : value(new_value) {} - int load(std::memory_order = std::memory_order_relaxed) const - { - return value; - } + int load(std::memory_order = std::memory_order_relaxed) const { return value; } - void store(int new_value, std::memory_order = std::memory_order_relaxed) - { - value = new_value; - } + void store(int new_value, std::memory_order = std::memory_order_relaxed) { value = new_value; } - int exchange(int new_value, std::memory_order = std::memory_order_relaxed) - { + int exchange(int new_value, std::memory_order = std::memory_order_relaxed) { std::swap(new_value, value); - return new_value; // return value before the call + return new_value; // return value before the call } }; -} // namespace details -} // namespace spdlog +} // namespace details +} // namespace spdlog diff --git a/Source/ThirdParty/spdlog/details/os-inl.h b/Source/ThirdParty/spdlog/details/os-inl.h index f436b0d14..92dfe129e 100644 --- a/Source/ThirdParty/spdlog/details/os-inl.h +++ b/Source/ThirdParty/spdlog/details/os-inl.h @@ -4,350 +4,328 @@ #pragma once #ifndef SPDLOG_HEADER_ONLY -#include "spdlog/details/os.h" +#include #endif -#include "spdlog/common.h" +#include #include +#include #include #include #include #include #include #include -#include -#include #include #include +#include #ifdef _WIN32 - -#ifndef NOMINMAX -#define NOMINMAX // prevent windows redefining min/max -#endif - -#ifndef WIN32_LEAN_AND_MEAN -#define WIN32_LEAN_AND_MEAN -#endif -#include // _get_osfhandle and _isatty support -#include // _get_pid support -#include +#include +#include // for _get_osfhandle, _isatty, _fileno +#include // for _get_pid #ifdef __MINGW32__ #include #endif #if defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) || defined(SPDLOG_WCHAR_FILENAMES) +#include #include #endif -#else // unix +#include // for _mkdir/_wmkdir + +#else // unix #include #include #ifdef __linux__ -#include //Use gettid() syscall under linux to get thread id +#include //Use gettid() syscall under linux to get thread id #elif defined(_AIX) -#include // for pthread_getthreadid_np +#include // for pthread_getthrds_np #elif defined(__DragonFly__) || defined(__FreeBSD__) -#include // for pthread_getthreadid_np +#include // for pthread_getthreadid_np #elif defined(__NetBSD__) -#include // for _lwp_self +#include // for _lwp_self #elif defined(__sun) -#include // for thr_self +#include // for thr_self #endif -#endif // unix +#endif // unix -#ifndef __has_feature // Clang - feature checking macros. -#define __has_feature(x) 0 // Compatibility with non-clang compilers. +#if defined __APPLE__ +#include +#endif + +#ifndef __has_feature // Clang - feature checking macros. +#define __has_feature(x) 0 // Compatibility with non-clang compilers. #endif namespace spdlog { namespace details { namespace os { -SPDLOG_INLINE spdlog::log_clock::time_point now() SPDLOG_NOEXCEPT -{ - +SPDLOG_INLINE spdlog::log_clock::time_point now() SPDLOG_NOEXCEPT { #if defined __linux__ && defined SPDLOG_CLOCK_COARSE timespec ts; ::clock_gettime(CLOCK_REALTIME_COARSE, &ts); return std::chrono::time_point( - std::chrono::duration_cast(std::chrono::seconds(ts.tv_sec) + std::chrono::nanoseconds(ts.tv_nsec))); + std::chrono::duration_cast( + std::chrono::seconds(ts.tv_sec) + std::chrono::nanoseconds(ts.tv_nsec))); #else return log_clock::now(); #endif } -SPDLOG_INLINE std::tm localtime(const std::time_t &time_tt) SPDLOG_NOEXCEPT -{ - +SPDLOG_INLINE std::tm localtime(const std::time_t &time_tt) SPDLOG_NOEXCEPT { #ifdef _WIN32 std::tm tm; - localtime_s(&tm, &time_tt); + ::localtime_s(&tm, &time_tt); #else std::tm tm; - localtime_r(&time_tt, &tm); + ::localtime_r(&time_tt, &tm); #endif return tm; } -SPDLOG_INLINE std::tm localtime() SPDLOG_NOEXCEPT -{ - std::time_t now_t = time(nullptr); +SPDLOG_INLINE std::tm localtime() SPDLOG_NOEXCEPT { + std::time_t now_t = ::time(nullptr); return localtime(now_t); } -SPDLOG_INLINE std::tm gmtime(const std::time_t &time_tt) SPDLOG_NOEXCEPT -{ - +SPDLOG_INLINE std::tm gmtime(const std::time_t &time_tt) SPDLOG_NOEXCEPT { #ifdef _WIN32 std::tm tm; - gmtime_s(&tm, &time_tt); + ::gmtime_s(&tm, &time_tt); #else std::tm tm; - gmtime_r(&time_tt, &tm); + ::gmtime_r(&time_tt, &tm); #endif return tm; } -SPDLOG_INLINE std::tm gmtime() SPDLOG_NOEXCEPT -{ - std::time_t now_t = time(nullptr); +SPDLOG_INLINE std::tm gmtime() SPDLOG_NOEXCEPT { + std::time_t now_t = ::time(nullptr); return gmtime(now_t); } -SPDLOG_INLINE void prevent_child_fd(FILE *f) -{ - +// fopen_s on non windows for writing +SPDLOG_INLINE bool fopen_s(FILE **fp, const filename_t &filename, const filename_t &mode) { #ifdef _WIN32 -#if !defined(__cplusplus_winrt) - auto file_handle = reinterpret_cast(_get_osfhandle(_fileno(f))); - if (!::SetHandleInformation(file_handle, HANDLE_FLAG_INHERIT, 0)) - SPDLOG_THROW(spdlog_ex("SetHandleInformation failed", errno)); -#endif +#ifdef SPDLOG_WCHAR_FILENAMES + *fp = ::_wfsopen((filename.c_str()), mode.c_str(), _SH_DENYNO); #else - auto fd = fileno(f); - if (fcntl(fd, F_SETFD, FD_CLOEXEC) == -1) - { - SPDLOG_THROW(spdlog_ex("fcntl with FD_CLOEXEC failed", errno)); + *fp = ::_fsopen((filename.c_str()), mode.c_str(), _SH_DENYNO); +#endif +#if defined(SPDLOG_PREVENT_CHILD_FD) + if (*fp != nullptr) { + auto file_handle = reinterpret_cast(_get_osfhandle(::_fileno(*fp))); + if (!::SetHandleInformation(file_handle, HANDLE_FLAG_INHERIT, 0)) { + ::fclose(*fp); + *fp = nullptr; + } } #endif -} - -// fopen_s on non windows for writing -SPDLOG_INLINE bool fopen_s(FILE **fp, const filename_t &filename, const filename_t &mode) -{ -#ifdef _WIN32 -#ifdef SPDLOG_WCHAR_FILENAMES - *fp = _wfsopen((filename.c_str()), mode.c_str(), _SH_DENYNO); +#else // unix +#if defined(SPDLOG_PREVENT_CHILD_FD) + const int mode_flag = mode == SPDLOG_FILENAME_T("ab") ? O_APPEND : O_TRUNC; + const int fd = + ::open((filename.c_str()), O_CREAT | O_WRONLY | O_CLOEXEC | mode_flag, mode_t(0644)); + if (fd == -1) { + return true; + } + *fp = ::fdopen(fd, mode.c_str()); + if (*fp == nullptr) { + ::close(fd); + } #else - *fp = _fsopen((filename.c_str()), mode.c_str(), _SH_DENYNO); + *fp = ::fopen((filename.c_str()), mode.c_str()); #endif -#else // unix - *fp = fopen((filename.c_str()), mode.c_str()); #endif -#ifdef SPDLOG_PREVENT_CHILD_FD - if (*fp != nullptr) - { - prevent_child_fd(*fp); - } -#endif return *fp == nullptr; } -SPDLOG_INLINE int remove(const filename_t &filename) SPDLOG_NOEXCEPT -{ +SPDLOG_INLINE int remove(const filename_t &filename) SPDLOG_NOEXCEPT { #if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES) - return _wremove(filename.c_str()); + return ::_wremove(filename.c_str()); #else return std::remove(filename.c_str()); #endif } -SPDLOG_INLINE int remove_if_exists(const filename_t &filename) SPDLOG_NOEXCEPT -{ - return file_exists(filename) ? remove(filename) : 0; +SPDLOG_INLINE int remove_if_exists(const filename_t &filename) SPDLOG_NOEXCEPT { + return path_exists(filename) ? remove(filename) : 0; } -SPDLOG_INLINE int rename(const filename_t &filename1, const filename_t &filename2) SPDLOG_NOEXCEPT -{ +SPDLOG_INLINE int rename(const filename_t &filename1, const filename_t &filename2) SPDLOG_NOEXCEPT { #if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES) - return _wrename(filename1.c_str(), filename2.c_str()); + return ::_wrename(filename1.c_str(), filename2.c_str()); #else return std::rename(filename1.c_str(), filename2.c_str()); #endif } -// Return true if file exists -SPDLOG_INLINE bool file_exists(const filename_t &filename) SPDLOG_NOEXCEPT -{ +// Return true if path exists (file or directory) +SPDLOG_INLINE bool path_exists(const filename_t &filename) SPDLOG_NOEXCEPT { #ifdef _WIN32 + struct _stat buffer; #ifdef SPDLOG_WCHAR_FILENAMES - auto attribs = GetFileAttributesW(filename.c_str()); + return (::_wstat(filename.c_str(), &buffer) == 0); #else - auto attribs = GetFileAttributesA(filename.c_str()); + return (::_stat(filename.c_str(), &buffer) == 0); #endif - return (attribs != INVALID_FILE_ATTRIBUTES && !(attribs & FILE_ATTRIBUTE_DIRECTORY)); -#else // common linux/unix all have the stat system call +#else // common linux/unix all have the stat system call struct stat buffer; return (::stat(filename.c_str(), &buffer) == 0); #endif } +#ifdef _MSC_VER +// avoid warning about unreachable statement at the end of filesize() +#pragma warning(push) +#pragma warning(disable : 4702) +#endif + // Return file size according to open FILE* object -SPDLOG_INLINE size_t filesize(FILE *f) -{ - if (f == nullptr) - { - SPDLOG_THROW(spdlog_ex("Failed getting file size. fd is null")); +SPDLOG_INLINE size_t filesize(FILE *f) { + if (f == nullptr) { + throw_spdlog_ex("Failed getting file size. fd is null"); } #if defined(_WIN32) && !defined(__CYGWIN__) - int fd = _fileno(f); -#if _WIN64 // 64 bits - __int64 ret = _filelengthi64(fd); - if (ret >= 0) - { + int fd = ::_fileno(f); +#if defined(_WIN64) // 64 bits + __int64 ret = ::_filelengthi64(fd); + if (ret >= 0) { return static_cast(ret); } -#else // windows 32 bits - long ret = _filelength(fd); - if (ret >= 0) - { +#else // windows 32 bits + long ret = ::_filelength(fd); + if (ret >= 0) { return static_cast(ret); } #endif -#else // unix +#else // unix +// OpenBSD and AIX doesn't compile with :: before the fileno(..) +#if defined(__OpenBSD__) || defined(_AIX) int fd = fileno(f); -// 64 bits(but not in osx or cygwin, where fstat64 is deprecated) -#if (defined(__linux__) || defined(__sun) || defined(_AIX)) && (defined(__LP64__) || defined(_LP64)) +#else + int fd = ::fileno(f); +#endif +// 64 bits(but not in osx, linux/musl or cygwin, where fstat64 is deprecated) +#if ((defined(__linux__) && defined(__GLIBC__)) || defined(__sun) || defined(_AIX)) && \ + (defined(__LP64__) || defined(_LP64)) struct stat64 st; - if (::fstat64(fd, &st) == 0) - { + if (::fstat64(fd, &st) == 0) { return static_cast(st.st_size); } -#else // unix 32 bits or cygwin +#else // other unix or linux 32 bits or cygwin struct stat st; - - if (::fstat(fd, &st) == 0) - { + if (::fstat(fd, &st) == 0) { return static_cast(st.st_size); } #endif #endif - SPDLOG_THROW(spdlog_ex("Failed getting file size from fd", errno)); + throw_spdlog_ex("Failed getting file size from fd", errno); + return 0; // will not be reached. } -// Return utc offset in minutes or throw spdlog_ex on failure -SPDLOG_INLINE int utc_minutes_offset(const std::tm &tm) -{ - -#ifdef _WIN32 -#if _WIN32_WINNT < _WIN32_WINNT_WS08 - TIME_ZONE_INFORMATION tzinfo; - auto rv = GetTimeZoneInformation(&tzinfo); -#else - DYNAMIC_TIME_ZONE_INFORMATION tzinfo; - auto rv = GetDynamicTimeZoneInformation(&tzinfo); +#ifdef _MSC_VER +#pragma warning(pop) #endif - if (rv == TIME_ZONE_ID_INVALID) - SPDLOG_THROW(spdlog::spdlog_ex("Failed getting timezone info. ", errno)); - int offset = -tzinfo.Bias; - if (tm.tm_isdst) - { - offset -= tzinfo.DaylightBias; - } - else - { - offset -= tzinfo.StandardBias; +#if !defined(SPDLOG_NO_TZ_OFFSET) +#ifdef _WIN32 +// Compare the timestamp as Local (mktime) vs UTC (_mkgmtime) to get the offset. +SPDLOG_INLINE int utc_minutes_offset(const std::tm &tm) { + std::tm local_tm = tm; // copy since mktime might adjust it (normalize dates, set tm_isdst) + std::time_t local_time_t = std::mktime(&local_tm); + if (local_time_t == -1) { + return 0; // fallback } - return offset; -#else - -#if defined(sun) || defined(__sun) || defined(_AIX) - // 'tm_gmtoff' field is BSD extension and it's missing on SunOS/Solaris - struct helper - { - static long int calculate_gmt_offset(const std::tm &localtm = details::os::localtime(), const std::tm &gmtm = details::os::gmtime()) - { - int local_year = localtm.tm_year + (1900 - 1); - int gmt_year = gmtm.tm_year + (1900 - 1); - - long int days = ( - // difference in day of year - localtm.tm_yday - - gmtm.tm_yday - - // + intervening leap days - + ((local_year >> 2) - (gmt_year >> 2)) - (local_year / 100 - gmt_year / 100) + - ((local_year / 100 >> 2) - (gmt_year / 100 >> 2)) - - // + difference in years * 365 */ - + (long int)(local_year - gmt_year) * 365); - - long int hours = (24 * days) + (localtm.tm_hour - gmtm.tm_hour); - long int mins = (60 * hours) + (localtm.tm_min - gmtm.tm_min); - long int secs = (60 * mins) + (localtm.tm_sec - gmtm.tm_sec); - - return secs; - } - }; - - auto offset_seconds = helper::calculate_gmt_offset(tm); -#else - auto offset_seconds = tm.tm_gmtoff; -#endif + std::time_t utc_time_t = _mkgmtime(&local_tm); + if (utc_time_t == -1) { + return 0; // fallback + } + auto offset_seconds = utc_time_t - local_time_t; return static_cast(offset_seconds / 60); -#endif } +#else +// On unix simply use tm_gmtoff +SPDLOG_INLINE int utc_minutes_offset(const std::tm &tm) { + return static_cast(tm.tm_gmtoff / 60); +} +#endif // _WIN32 +#endif // SPDLOG_NO_TZ_OFFSET // Return current thread id as size_t // It exists because the std::this_thread::get_id() is much slower(especially // under VS 2013) -SPDLOG_INLINE size_t _thread_id() SPDLOG_NOEXCEPT -{ +SPDLOG_INLINE size_t _thread_id() SPDLOG_NOEXCEPT { #ifdef _WIN32 return static_cast(::GetCurrentThreadId()); #elif defined(__linux__) #if defined(__ANDROID__) && defined(__ANDROID_API__) && (__ANDROID_API__ < 21) #define SYS_gettid __NR_gettid #endif - return static_cast(syscall(SYS_gettid)); -#elif defined(_AIX) || defined(__DragonFly__) || defined(__FreeBSD__) - return static_cast(pthread_getthreadid_np()); + return static_cast(::syscall(SYS_gettid)); +#elif defined(_AIX) + struct __pthrdsinfo buf; + int reg_size = 0; + pthread_t pt = pthread_self(); + int retval = pthread_getthrds_np(&pt, PTHRDSINFO_QUERY_TID, &buf, sizeof(buf), NULL, ®_size); + int tid = (!retval) ? buf.__pi_tid : 0; + return static_cast(tid); +#elif defined(__DragonFly__) || defined(__FreeBSD__) + return static_cast(::pthread_getthreadid_np()); #elif defined(__NetBSD__) - return static_cast(_lwp_self()); + return static_cast(::_lwp_self()); #elif defined(__OpenBSD__) - return static_cast(getthrid()); + return static_cast(::getthrid()); #elif defined(__sun) - return static_cast(thr_self()); + return static_cast(::thr_self()); #elif __APPLE__ uint64_t tid; +// There is no pthread_threadid_np prior to Mac OS X 10.6, and it is not supported on any PPC, +// including 10.6.8 Rosetta. __POWERPC__ is Apple-specific define encompassing ppc and ppc64. +#ifdef MAC_OS_X_VERSION_MAX_ALLOWED + { +#if (MAC_OS_X_VERSION_MAX_ALLOWED < 1060) || defined(__POWERPC__) + tid = pthread_mach_thread_np(pthread_self()); +#elif MAC_OS_X_VERSION_MIN_REQUIRED < 1060 + if (&pthread_threadid_np) { + pthread_threadid_np(nullptr, &tid); + } else { + tid = pthread_mach_thread_np(pthread_self()); + } +#else + pthread_threadid_np(nullptr, &tid); +#endif + } +#else pthread_threadid_np(nullptr, &tid); +#endif return static_cast(tid); -#else // Default to standard C++11 (other Unix) +#else // Default to standard C++11 (other Unix) return static_cast(std::hash()(std::this_thread::get_id())); #endif } // Return current thread id as size_t (from thread local storage) -SPDLOG_INLINE size_t thread_id() SPDLOG_NOEXCEPT -{ +SPDLOG_INLINE size_t thread_id() SPDLOG_NOEXCEPT { #if defined(SPDLOG_NO_TLS) return _thread_id(); -#else // cache thread id in tls +#else // cache thread id in tls static thread_local const size_t tid = _thread_id(); return tid; #endif @@ -355,8 +333,7 @@ SPDLOG_INLINE size_t thread_id() SPDLOG_NOEXCEPT // This is avoid msvc issue in sleep_for that happens if the clock changes. // See https://github.com/gabime/spdlog/issues/609 -SPDLOG_INLINE void sleep_for_millis(int milliseconds) SPDLOG_NOEXCEPT -{ +SPDLOG_INLINE void sleep_for_millis(unsigned int milliseconds) SPDLOG_NOEXCEPT { #if defined(_WIN32) ::Sleep(milliseconds); #else @@ -366,100 +343,228 @@ SPDLOG_INLINE void sleep_for_millis(int milliseconds) SPDLOG_NOEXCEPT // wchar support for windows file names (SPDLOG_WCHAR_FILENAMES must be defined) #if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES) -SPDLOG_INLINE std::string filename_to_str(const filename_t &filename) -{ +SPDLOG_INLINE std::string filename_to_str(const filename_t &filename) { memory_buf_t buf; wstr_to_utf8buf(filename, buf); - return fmt::to_string(buf); + return SPDLOG_BUF_TO_STRING(buf); } #else -SPDLOG_INLINE std::string filename_to_str(const filename_t &filename) -{ - return filename; -} +SPDLOG_INLINE std::string filename_to_str(const filename_t &filename) { return filename; } #endif -SPDLOG_INLINE int pid() SPDLOG_NOEXCEPT -{ - +SPDLOG_INLINE int pid() SPDLOG_NOEXCEPT { #ifdef _WIN32 - return static_cast(::GetCurrentProcessId()); + return conditional_static_cast(::GetCurrentProcessId()); #else - return static_cast(::getpid()); + return conditional_static_cast(::getpid()); #endif } // Determine if the terminal supports colors -// Source: https://github.com/agauniyal/rang/ -SPDLOG_INLINE bool is_color_terminal() SPDLOG_NOEXCEPT -{ +// Based on: https://github.com/agauniyal/rang/ +SPDLOG_INLINE bool is_color_terminal() SPDLOG_NOEXCEPT { #ifdef _WIN32 return true; #else - static constexpr std::array Terms = { - {"ansi", "color", "console", "cygwin", "gnome", "konsole", "kterm", "linux", "msys", "putty", "rxvt", "screen", "vt100", "xterm"}}; - const char *env_p = std::getenv("TERM"); - if (env_p == nullptr) - { - return false; - } + static const bool result = []() { + const char *env_colorterm_p = std::getenv("COLORTERM"); + if (env_colorterm_p != nullptr) { + return true; + } + + static constexpr std::array terms = { + {"ansi", "color", "console", "cygwin", "gnome", "konsole", "kterm", "linux", "msys", + "putty", "rxvt", "screen", "vt100", "xterm", "alacritty", "vt102"}}; + + const char *env_term_p = std::getenv("TERM"); + if (env_term_p == nullptr) { + return false; + } + + return std::any_of(terms.begin(), terms.end(), [&](const char *term) { + return std::strstr(env_term_p, term) != nullptr; + }); + }(); - static const bool result = - std::any_of(std::begin(Terms), std::end(Terms), [&](const char *term) { return std::strstr(env_p, term) != nullptr; }); return result; #endif } -// Detrmine if the terminal attached +// Determine if the terminal attached // Source: https://github.com/agauniyal/rang/ -SPDLOG_INLINE bool in_terminal(FILE *file) SPDLOG_NOEXCEPT -{ - +SPDLOG_INLINE bool in_terminal(FILE *file) SPDLOG_NOEXCEPT { #ifdef _WIN32 - return _isatty(_fileno(file)) != 0; + return ::_isatty(_fileno(file)) != 0; #else - return isatty(fileno(file)) != 0; + return ::isatty(fileno(file)) != 0; #endif } #if (defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) || defined(SPDLOG_WCHAR_FILENAMES)) && defined(_WIN32) -SPDLOG_INLINE void wstr_to_utf8buf(wstring_view_t wstr, memory_buf_t &target) -{ - if (wstr.size() > static_cast(std::numeric_limits::max())) - { - SPDLOG_THROW(spdlog::spdlog_ex("UTF-16 string is too big to be converted to UTF-8")); +SPDLOG_INLINE void wstr_to_utf8buf(wstring_view_t wstr, memory_buf_t &target) { + if (wstr.size() > static_cast((std::numeric_limits::max)()) / 4 - 1) { + throw_spdlog_ex("UTF-16 string is too big to be converted to UTF-8"); } int wstr_size = static_cast(wstr.size()); - if (wstr_size == 0) - { + if (wstr_size == 0) { target.resize(0); return; } int result_size = static_cast(target.capacity()); - if ((wstr_size + 1) * 2 > result_size) - { - result_size = ::WideCharToMultiByte(CP_UTF8, 0, wstr.data(), wstr_size, NULL, 0, NULL, NULL); + if ((wstr_size + 1) * 4 > result_size) { + result_size = + ::WideCharToMultiByte(CP_UTF8, 0, wstr.data(), wstr_size, NULL, 0, NULL, NULL); } - if (result_size > 0) - { + if (result_size > 0) { target.resize(result_size); - result_size = ::WideCharToMultiByte(CP_UTF8, 0, wstr.data(), wstr_size, target.data(), result_size, NULL, NULL); + result_size = ::WideCharToMultiByte(CP_UTF8, 0, wstr.data(), wstr_size, target.data(), + result_size, NULL, NULL); - if (result_size > 0) - { + if (result_size > 0) { target.resize(result_size); return; } } - SPDLOG_THROW(spdlog::spdlog_ex(fmt::format("WideCharToMultiByte failed. Last error: {}", ::GetLastError()))); + throw_spdlog_ex( + fmt_lib::format("WideCharToMultiByte failed. Last error: {}", ::GetLastError())); +} + +SPDLOG_INLINE void utf8_to_wstrbuf(string_view_t str, wmemory_buf_t &target) { + if (str.size() > static_cast((std::numeric_limits::max)()) - 1) { + throw_spdlog_ex("UTF-8 string is too big to be converted to UTF-16"); + } + + int str_size = static_cast(str.size()); + if (str_size == 0) { + target.resize(0); + return; + } + + // find the size to allocate for the result buffer + int result_size = ::MultiByteToWideChar(CP_UTF8, 0, str.data(), str_size, NULL, 0); + + if (result_size > 0) { + target.resize(result_size); + result_size = + ::MultiByteToWideChar(CP_UTF8, 0, str.data(), str_size, target.data(), result_size); + if (result_size > 0) { + assert(result_size == static_cast(target.size())); + return; + } + } + + throw_spdlog_ex( + fmt_lib::format("MultiByteToWideChar failed. Last error: {}", ::GetLastError())); +} +#endif // (defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) || defined(SPDLOG_WCHAR_FILENAMES)) && + // defined(_WIN32) + +// return true on success +static SPDLOG_INLINE bool mkdir_(const filename_t &path) { +#ifdef _WIN32 +#ifdef SPDLOG_WCHAR_FILENAMES + return ::_wmkdir(path.c_str()) == 0; +#else + return ::_mkdir(path.c_str()) == 0; +#endif +#else + return ::mkdir(path.c_str(), mode_t(0755)) == 0; +#endif +} + +// create the given directory - and all directories leading to it +// return true on success or if the directory already exists +SPDLOG_INLINE bool create_dir(const filename_t &path) { + if (path_exists(path)) { + return true; + } + + if (path.empty()) { + return false; + } + + size_t search_offset = 0; + do { + auto token_pos = path.find_first_of(folder_seps_filename, search_offset); + // treat the entire path as a folder if no folder separator not found + if (token_pos == filename_t::npos) { + token_pos = path.size(); + } + + auto subdir = path.substr(0, token_pos); +#ifdef _WIN32 + // if subdir is just a drive letter, add a slash e.g. "c:"=>"c:\", + // otherwise path_exists(subdir) returns false (issue #3079) + const bool is_drive = subdir.length() == 2 && subdir[1] == ':'; + if (is_drive) { + subdir += '\\'; + token_pos++; + } +#endif + + if (!subdir.empty() && !path_exists(subdir) && !mkdir_(subdir)) { + return false; // return error if failed creating dir + } + search_offset = token_pos + 1; + } while (search_offset < path.size()); + + return true; +} + +// Return directory name from given path or empty string +// "abc/file" => "abc" +// "abc/" => "abc" +// "abc" => "" +// "abc///" => "abc//" +SPDLOG_INLINE filename_t dir_name(const filename_t &path) { + auto pos = path.find_last_of(folder_seps_filename); + return pos != filename_t::npos ? path.substr(0, pos) : filename_t{}; +} + +#ifdef _MSC_VER +#pragma warning(push) +#pragma warning(disable : 4996) +#endif // _MSC_VER +std::string SPDLOG_INLINE getenv(const char *field) { +#if defined(_MSC_VER) && defined(WINAPI_FAMILY) && defined(WINAPI_FAMILY_DESKTOP_APP) && \ + (WINAPI_FAMILY != WINAPI_FAMILY_DESKTOP_APP) + return std::string{}; // not supported under uwp +#else + char *buf = std::getenv(field); + return buf ? buf : std::string{}; +#endif +} +#ifdef _MSC_VER +#pragma warning(pop) +#endif // _MSC_VER + +// Do fsync by FILE handlerpointer +// Return true on success +SPDLOG_INLINE bool fsync(FILE *fp) { +#ifdef _WIN32 + return FlushFileBuffers(reinterpret_cast(_get_osfhandle(_fileno(fp)))) != 0; +#else + return ::fsync(fileno(fp)) == 0; +#endif +} + +// Do non-locking fwrite if possible by the os or use the regular locking fwrite +// Return true on success. +SPDLOG_INLINE bool fwrite_bytes(const void *ptr, const size_t n_bytes, FILE *fp) { +#if defined(_WIN32) && defined(SPDLOG_FWRITE_UNLOCKED) + return _fwrite_nolock(ptr, 1, n_bytes, fp) == n_bytes; +#elif defined(SPDLOG_FWRITE_UNLOCKED) + return ::fwrite_unlocked(ptr, 1, n_bytes, fp) == n_bytes; +#else + return std::fwrite(ptr, 1, n_bytes, fp) == n_bytes; +#endif } -#endif // (defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) || defined(SPDLOG_WCHAR_FILENAMES)) && defined(_WIN32) -} // namespace os -} // namespace details -} // namespace spdlog +} // namespace os +} // namespace details +} // namespace spdlog diff --git a/Source/ThirdParty/spdlog/details/os.h b/Source/ThirdParty/spdlog/details/os.h index 6d9dae132..8bb8d14ac 100644 --- a/Source/ThirdParty/spdlog/details/os.h +++ b/Source/ThirdParty/spdlog/details/os.h @@ -3,22 +3,22 @@ #pragma once -#include "spdlog/common.h" -#include // std::time_t +#include // std::time_t +#include namespace spdlog { namespace details { namespace os { -spdlog::log_clock::time_point now() SPDLOG_NOEXCEPT; +SPDLOG_API spdlog::log_clock::time_point now() SPDLOG_NOEXCEPT; -std::tm localtime(const std::time_t &time_tt) SPDLOG_NOEXCEPT; +SPDLOG_API std::tm localtime(const std::time_t &time_tt) SPDLOG_NOEXCEPT; -std::tm localtime() SPDLOG_NOEXCEPT; +SPDLOG_API std::tm localtime() SPDLOG_NOEXCEPT; -std::tm gmtime(const std::time_t &time_tt) SPDLOG_NOEXCEPT; +SPDLOG_API std::tm gmtime(const std::time_t &time_tt) SPDLOG_NOEXCEPT; -std::tm gmtime() SPDLOG_NOEXCEPT; +SPDLOG_API std::tm gmtime() SPDLOG_NOEXCEPT; // eol definition #if !defined(SPDLOG_EOL) @@ -32,66 +32,95 @@ std::tm gmtime() SPDLOG_NOEXCEPT; SPDLOG_CONSTEXPR static const char *default_eol = SPDLOG_EOL; // folder separator +#if !defined(SPDLOG_FOLDER_SEPS) #ifdef _WIN32 -const char folder_sep = '\\'; +#define SPDLOG_FOLDER_SEPS "\\/" #else -SPDLOG_CONSTEXPR static const char folder_sep = '/'; +#define SPDLOG_FOLDER_SEPS "/" +#endif #endif -void prevent_child_fd(FILE *f); +SPDLOG_CONSTEXPR static const char folder_seps[] = SPDLOG_FOLDER_SEPS; +SPDLOG_CONSTEXPR static const filename_t::value_type folder_seps_filename[] = + SPDLOG_FILENAME_T(SPDLOG_FOLDER_SEPS); // fopen_s on non windows for writing -bool fopen_s(FILE **fp, const filename_t &filename, const filename_t &mode); +SPDLOG_API bool fopen_s(FILE **fp, const filename_t &filename, const filename_t &mode); // Remove filename. return 0 on success -int remove(const filename_t &filename) SPDLOG_NOEXCEPT; +SPDLOG_API int remove(const filename_t &filename) SPDLOG_NOEXCEPT; // Remove file if exists. return 0 on success // Note: Non atomic (might return failure to delete if concurrently deleted by other process/thread) -int remove_if_exists(const filename_t &filename) SPDLOG_NOEXCEPT; +SPDLOG_API int remove_if_exists(const filename_t &filename) SPDLOG_NOEXCEPT; -int rename(const filename_t &filename1, const filename_t &filename2) SPDLOG_NOEXCEPT; +SPDLOG_API int rename(const filename_t &filename1, const filename_t &filename2) SPDLOG_NOEXCEPT; // Return if file exists. -bool file_exists(const filename_t &filename) SPDLOG_NOEXCEPT; +SPDLOG_API bool path_exists(const filename_t &filename) SPDLOG_NOEXCEPT; // Return file size according to open FILE* object -size_t filesize(FILE *f); +SPDLOG_API size_t filesize(FILE *f); // Return utc offset in minutes or throw spdlog_ex on failure -int utc_minutes_offset(const std::tm &tm = details::os::localtime()); +SPDLOG_API int utc_minutes_offset(const std::tm &tm = details::os::localtime()); // Return current thread id as size_t // It exists because the std::this_thread::get_id() is much slower(especially // under VS 2013) -size_t _thread_id() SPDLOG_NOEXCEPT; +SPDLOG_API size_t _thread_id() SPDLOG_NOEXCEPT; // Return current thread id as size_t (from thread local storage) -size_t thread_id() SPDLOG_NOEXCEPT; +SPDLOG_API size_t thread_id() SPDLOG_NOEXCEPT; // This is avoid msvc issue in sleep_for that happens if the clock changes. // See https://github.com/gabime/spdlog/issues/609 -void sleep_for_millis(int milliseconds) SPDLOG_NOEXCEPT; +SPDLOG_API void sleep_for_millis(unsigned int milliseconds) SPDLOG_NOEXCEPT; -std::string filename_to_str(const filename_t &filename); +SPDLOG_API std::string filename_to_str(const filename_t &filename); -int pid() SPDLOG_NOEXCEPT; +SPDLOG_API int pid() SPDLOG_NOEXCEPT; // Determine if the terminal supports colors // Source: https://github.com/agauniyal/rang/ -bool is_color_terminal() SPDLOG_NOEXCEPT; +SPDLOG_API bool is_color_terminal() SPDLOG_NOEXCEPT; -// Detrmine if the terminal attached +// Determine if the terminal attached // Source: https://github.com/agauniyal/rang/ -bool in_terminal(FILE *file) SPDLOG_NOEXCEPT; +SPDLOG_API bool in_terminal(FILE *file) SPDLOG_NOEXCEPT; #if (defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) || defined(SPDLOG_WCHAR_FILENAMES)) && defined(_WIN32) -void wstr_to_utf8buf(wstring_view_t wstr, memory_buf_t &target); +SPDLOG_API void wstr_to_utf8buf(wstring_view_t wstr, memory_buf_t &target); + +SPDLOG_API void utf8_to_wstrbuf(string_view_t str, wmemory_buf_t &target); #endif -} // namespace os -} // namespace details -} // namespace spdlog +// Return directory name from given path or empty string +// "abc/file" => "abc" +// "abc/" => "abc" +// "abc" => "" +// "abc///" => "abc//" +SPDLOG_API filename_t dir_name(const filename_t &path); + +// Create a dir from the given path. +// Return true if succeeded or if this dir already exists. +SPDLOG_API bool create_dir(const filename_t &path); + +// non thread safe, cross platform getenv/getenv_s +// return empty string if field not found +SPDLOG_API std::string getenv(const char *field); + +// Do fsync by FILE objectpointer. +// Return true on success. +SPDLOG_API bool fsync(FILE *fp); + +// Do non-locking fwrite if possible by the os or use the regular locking fwrite +// Return true on success. +SPDLOG_API bool fwrite_bytes(const void *ptr, const size_t n_bytes, FILE *fp); + +} // namespace os +} // namespace details +} // namespace spdlog #ifdef SPDLOG_HEADER_ONLY #include "os-inl.h" diff --git a/Source/ThirdParty/spdlog/details/pattern_formatter-inl.h b/Source/ThirdParty/spdlog/details/pattern_formatter-inl.h deleted file mode 100644 index 1b95eb6d0..000000000 --- a/Source/ThirdParty/spdlog/details/pattern_formatter-inl.h +++ /dev/null @@ -1,1317 +0,0 @@ -// Copyright(c) 2015-present, Gabi Melman & spdlog contributors. -// Distributed under the MIT License (http://opensource.org/licenses/MIT) - -#pragma once - -#ifndef SPDLOG_HEADER_ONLY -#include "spdlog/details/pattern_formatter.h" -#endif - -#include "spdlog/details/fmt_helper.h" -#include "spdlog/details/log_msg.h" -#include "spdlog/details/os.h" -#include "spdlog/fmt/fmt.h" -#include "spdlog/formatter.h" - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -namespace spdlog { -namespace details { - -/////////////////////////////////////////////////////////////////////// -// name & level pattern appender -/////////////////////////////////////////////////////////////////////// - -class scoped_padder -{ -public: - scoped_padder(size_t wrapped_size, const padding_info &padinfo, memory_buf_t &dest) - : padinfo_(padinfo) - , dest_(dest) - { - - if (padinfo_.width_ <= wrapped_size) - { - total_pad_ = 0; - return; - } - - total_pad_ = padinfo.width_ - wrapped_size; - if (padinfo_.side_ == padding_info::left) - { - pad_it(total_pad_); - total_pad_ = 0; - } - else if (padinfo_.side_ == padding_info::center) - { - auto half_pad = total_pad_ / 2; - auto reminder = total_pad_ & 1; - pad_it(half_pad); - total_pad_ = half_pad + reminder; // for the right side - } - } - - ~scoped_padder() - { - if (total_pad_) - { - pad_it(total_pad_); - } - } - -private: - void pad_it(size_t count) - { - // count = std::min(count, spaces_.size()); - assert(count <= spaces_.size()); - fmt_helper::append_string_view(string_view_t(spaces_.data(), count), dest_); - } - - const padding_info &padinfo_; - memory_buf_t &dest_; - size_t total_pad_; - string_view_t spaces_{" ", 64}; -}; - -struct null_scoped_padder -{ - null_scoped_padder(size_t /*wrapped_size*/, const padding_info & /*padinfo*/, memory_buf_t & /*dest*/) {} -}; - -template -class name_formatter : public flag_formatter -{ -public: - explicit name_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override - { - ScopedPadder p(msg.logger_name.size(), padinfo_, dest); - fmt_helper::append_string_view(msg.logger_name, dest); - } -}; - -// log level appender -template -class level_formatter : public flag_formatter -{ -public: - explicit level_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override - { - string_view_t &level_name = level::to_string_view(msg.level); - ScopedPadder p(level_name.size(), padinfo_, dest); - fmt_helper::append_string_view(level_name, dest); - } -}; - -// short log level appender -template -class short_level_formatter : public flag_formatter -{ -public: - explicit short_level_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override - { - string_view_t level_name{level::to_short_c_str(msg.level)}; - ScopedPadder p(level_name.size(), padinfo_, dest); - fmt_helper::append_string_view(level_name, dest); - } -}; - -/////////////////////////////////////////////////////////////////////// -// Date time pattern appenders -/////////////////////////////////////////////////////////////////////// - -static const char *ampm(const tm &t) -{ - return t.tm_hour >= 12 ? "PM" : "AM"; -} - -static int to12h(const tm &t) -{ - return t.tm_hour > 12 ? t.tm_hour - 12 : t.tm_hour; -} - -// Abbreviated weekday name -static std::array days{{"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"}}; - -template -class a_formatter : public flag_formatter -{ -public: - explicit a_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override - { - string_view_t field_value{days[static_cast(tm_time.tm_wday)]}; - ScopedPadder p(field_value.size(), padinfo_, dest); - fmt_helper::append_string_view(field_value, dest); - } -}; - -// Full weekday name -static std::array full_days{{"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"}}; - -template -class A_formatter : public flag_formatter -{ -public: - explicit A_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override - { - string_view_t field_value{full_days[static_cast(tm_time.tm_wday)]}; - ScopedPadder p(field_value.size(), padinfo_, dest); - fmt_helper::append_string_view(field_value, dest); - } -}; - -// Abbreviated month -static const std::array months{{"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sept", "Oct", "Nov", "Dec"}}; - -template -class b_formatter : public flag_formatter -{ -public: - explicit b_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override - { - string_view_t field_value{months[static_cast(tm_time.tm_mon)]}; - ScopedPadder p(field_value.size(), padinfo_, dest); - fmt_helper::append_string_view(field_value, dest); - } -}; - -// Full month name -static const std::array full_months{ - {"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"}}; - -template -class B_formatter : public flag_formatter -{ -public: - explicit B_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override - { - string_view_t field_value{full_months[static_cast(tm_time.tm_mon)]}; - ScopedPadder p(field_value.size(), padinfo_, dest); - fmt_helper::append_string_view(field_value, dest); - } -}; - -// Date and time representation (Thu Aug 23 15:35:46 2014) -template -class c_formatter final : public flag_formatter -{ -public: - explicit c_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override - { - const size_t field_size = 24; - ScopedPadder p(field_size, padinfo_, dest); - - fmt_helper::append_string_view(days[static_cast(tm_time.tm_wday)], dest); - dest.push_back(' '); - fmt_helper::append_string_view(months[static_cast(tm_time.tm_mon)], dest); - dest.push_back(' '); - fmt_helper::append_int(tm_time.tm_mday, dest); - dest.push_back(' '); - // time - - fmt_helper::pad2(tm_time.tm_hour, dest); - dest.push_back(':'); - fmt_helper::pad2(tm_time.tm_min, dest); - dest.push_back(':'); - fmt_helper::pad2(tm_time.tm_sec, dest); - dest.push_back(' '); - fmt_helper::append_int(tm_time.tm_year + 1900, dest); - } -}; - -// year - 2 digit -template -class C_formatter final : public flag_formatter -{ -public: - explicit C_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override - { - const size_t field_size = 2; - ScopedPadder p(field_size, padinfo_, dest); - fmt_helper::pad2(tm_time.tm_year % 100, dest); - } -}; - -// Short MM/DD/YY date, equivalent to %m/%d/%y 08/23/01 -template -class D_formatter final : public flag_formatter -{ -public: - explicit D_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override - { - const size_t field_size = 10; - ScopedPadder p(field_size, padinfo_, dest); - - fmt_helper::pad2(tm_time.tm_mon + 1, dest); - dest.push_back('/'); - fmt_helper::pad2(tm_time.tm_mday, dest); - dest.push_back('/'); - fmt_helper::pad2(tm_time.tm_year % 100, dest); - } -}; - -// year - 4 digit -template -class Y_formatter final : public flag_formatter -{ -public: - explicit Y_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override - { - const size_t field_size = 4; - ScopedPadder p(field_size, padinfo_, dest); - fmt_helper::append_int(tm_time.tm_year + 1900, dest); - } -}; - -// month 1-12 -template -class m_formatter final : public flag_formatter -{ -public: - explicit m_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override - { - const size_t field_size = 2; - ScopedPadder p(field_size, padinfo_, dest); - fmt_helper::pad2(tm_time.tm_mon + 1, dest); - } -}; - -// day of month 1-31 -template -class d_formatter final : public flag_formatter -{ -public: - explicit d_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override - { - const size_t field_size = 2; - ScopedPadder p(field_size, padinfo_, dest); - fmt_helper::pad2(tm_time.tm_mday, dest); - } -}; - -// hours in 24 format 0-23 -template -class H_formatter final : public flag_formatter -{ -public: - explicit H_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override - { - const size_t field_size = 2; - ScopedPadder p(field_size, padinfo_, dest); - fmt_helper::pad2(tm_time.tm_hour, dest); - } -}; - -// hours in 12 format 1-12 -template -class I_formatter final : public flag_formatter -{ -public: - explicit I_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override - { - const size_t field_size = 2; - ScopedPadder p(field_size, padinfo_, dest); - fmt_helper::pad2(to12h(tm_time), dest); - } -}; - -// minutes 0-59 -template -class M_formatter final : public flag_formatter -{ -public: - explicit M_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override - { - const size_t field_size = 2; - ScopedPadder p(field_size, padinfo_, dest); - fmt_helper::pad2(tm_time.tm_min, dest); - } -}; - -// seconds 0-59 -template -class S_formatter final : public flag_formatter -{ -public: - explicit S_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override - { - const size_t field_size = 2; - ScopedPadder p(field_size, padinfo_, dest); - fmt_helper::pad2(tm_time.tm_sec, dest); - } -}; - -// milliseconds -template -class e_formatter final : public flag_formatter -{ -public: - explicit e_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override - { - auto millis = fmt_helper::time_fraction(msg.time); - const size_t field_size = 3; - ScopedPadder p(field_size, padinfo_, dest); - fmt_helper::pad3(static_cast(millis.count()), dest); - } -}; - -// microseconds -template -class f_formatter final : public flag_formatter -{ -public: - explicit f_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override - { - auto micros = fmt_helper::time_fraction(msg.time); - - const size_t field_size = 6; - ScopedPadder p(field_size, padinfo_, dest); - fmt_helper::pad6(static_cast(micros.count()), dest); - } -}; - -// nanoseconds -template -class F_formatter final : public flag_formatter -{ -public: - explicit F_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override - { - auto ns = fmt_helper::time_fraction(msg.time); - const size_t field_size = 9; - ScopedPadder p(field_size, padinfo_, dest); - fmt_helper::pad9(static_cast(ns.count()), dest); - } -}; - -// seconds since epoch -template -class E_formatter final : public flag_formatter -{ -public: - explicit E_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override - { - const size_t field_size = 10; - ScopedPadder p(field_size, padinfo_, dest); - auto duration = msg.time.time_since_epoch(); - auto seconds = std::chrono::duration_cast(duration).count(); - fmt_helper::append_int(seconds, dest); - } -}; - -// AM/PM -template -class p_formatter final : public flag_formatter -{ -public: - explicit p_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override - { - const size_t field_size = 2; - ScopedPadder p(field_size, padinfo_, dest); - fmt_helper::append_string_view(ampm(tm_time), dest); - } -}; - -// 12 hour clock 02:55:02 pm -template -class r_formatter final : public flag_formatter -{ -public: - explicit r_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override - { - const size_t field_size = 11; - ScopedPadder p(field_size, padinfo_, dest); - - fmt_helper::pad2(to12h(tm_time), dest); - dest.push_back(':'); - fmt_helper::pad2(tm_time.tm_min, dest); - dest.push_back(':'); - fmt_helper::pad2(tm_time.tm_sec, dest); - dest.push_back(' '); - fmt_helper::append_string_view(ampm(tm_time), dest); - } -}; - -// 24-hour HH:MM time, equivalent to %H:%M -template -class R_formatter final : public flag_formatter -{ -public: - explicit R_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override - { - const size_t field_size = 5; - ScopedPadder p(field_size, padinfo_, dest); - - fmt_helper::pad2(tm_time.tm_hour, dest); - dest.push_back(':'); - fmt_helper::pad2(tm_time.tm_min, dest); - } -}; - -// ISO 8601 time format (HH:MM:SS), equivalent to %H:%M:%S -template -class T_formatter final : public flag_formatter -{ -public: - explicit T_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &, const std::tm &tm_time, memory_buf_t &dest) override - { - const size_t field_size = 8; - ScopedPadder p(field_size, padinfo_, dest); - - fmt_helper::pad2(tm_time.tm_hour, dest); - dest.push_back(':'); - fmt_helper::pad2(tm_time.tm_min, dest); - dest.push_back(':'); - fmt_helper::pad2(tm_time.tm_sec, dest); - } -}; - -// ISO 8601 offset from UTC in timezone (+-HH:MM) -template -class z_formatter final : public flag_formatter -{ -public: - explicit z_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - z_formatter() = default; - z_formatter(const z_formatter &) = delete; - z_formatter &operator=(const z_formatter &) = delete; - - void format(const details::log_msg &msg, const std::tm &tm_time, memory_buf_t &dest) override - { - const size_t field_size = 6; - ScopedPadder p(field_size, padinfo_, dest); - -#ifdef _WIN32 - int total_minutes = get_cached_offset(msg, tm_time); -#else - // No need to chache under gcc, - // it is very fast (already stored in tm.tm_gmtoff) - (void)(msg); - int total_minutes = os::utc_minutes_offset(tm_time); -#endif - bool is_negative = total_minutes < 0; - if (is_negative) - { - total_minutes = -total_minutes; - dest.push_back('-'); - } - else - { - dest.push_back('+'); - } - - fmt_helper::pad2(total_minutes / 60, dest); // hours - dest.push_back(':'); - fmt_helper::pad2(total_minutes % 60, dest); // minutes - } - -private: - log_clock::time_point last_update_{std::chrono::seconds(0)}; -#ifdef _WIN32 - int offset_minutes_{0}; - - int get_cached_offset(const log_msg &msg, const std::tm &tm_time) - { - // refresh every 10 seconds - if (msg.time - last_update_ >= std::chrono::seconds(10)) - { - offset_minutes_ = os::utc_minutes_offset(tm_time); - last_update_ = msg.time; - } - return offset_minutes_; - } -#endif -}; - -// Thread id -template -class t_formatter final : public flag_formatter -{ -public: - explicit t_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override - { - const auto field_size = fmt_helper::count_digits(msg.thread_id); - ScopedPadder p(field_size, padinfo_, dest); - fmt_helper::append_int(msg.thread_id, dest); - } -}; - -// Current pid -template -class pid_formatter final : public flag_formatter -{ -public: - explicit pid_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &, const std::tm &, memory_buf_t &dest) override - { - const auto pid = static_cast(details::os::pid()); - auto field_size = fmt_helper::count_digits(pid); - ScopedPadder p(field_size, padinfo_, dest); - fmt_helper::append_int(pid, dest); - } -}; - -template -class v_formatter final : public flag_formatter -{ -public: - explicit v_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override - { - ScopedPadder p(msg.payload.size(), padinfo_, dest); - fmt_helper::append_string_view(msg.payload, dest); - } -}; - -class ch_formatter final : public flag_formatter -{ -public: - explicit ch_formatter(char ch) - : ch_(ch) - {} - - void format(const details::log_msg &, const std::tm &, memory_buf_t &dest) override - { - dest.push_back(ch_); - } - -private: - char ch_; -}; - -// aggregate user chars to display as is -class aggregate_formatter final : public flag_formatter -{ -public: - aggregate_formatter() = default; - - void add_ch(char ch) - { - str_ += ch; - } - void format(const details::log_msg &, const std::tm &, memory_buf_t &dest) override - { - fmt_helper::append_string_view(str_, dest); - } - -private: - std::string str_; -}; - -// mark the color range. expect it to be in the form of "%^colored text%$" -class color_start_formatter final : public flag_formatter -{ -public: - explicit color_start_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override - { - msg.color_range_start = dest.size(); - } -}; - -class color_stop_formatter final : public flag_formatter -{ -public: - explicit color_stop_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override - { - msg.color_range_end = dest.size(); - } -}; - -// print source location -template -class source_location_formatter final : public flag_formatter -{ -public: - explicit source_location_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override - { - if (msg.source.empty()) - { - return; - } - - size_t text_size = - padinfo_.enabled() ? std::char_traits::length(msg.source.filename) + fmt_helper::count_digits(msg.source.line) + 1 : 0; - - ScopedPadder p(text_size, padinfo_, dest); - fmt_helper::append_string_view(msg.source.filename, dest); - dest.push_back(':'); - fmt_helper::append_int(msg.source.line, dest); - } -}; - -// print source filename -template -class source_filename_formatter final : public flag_formatter -{ -public: - explicit source_filename_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override - { - if (msg.source.empty()) - { - return; - } - size_t text_size = padinfo_.enabled() ? std::char_traits::length(msg.source.filename) : 0; - ScopedPadder p(text_size, padinfo_, dest); - fmt_helper::append_string_view(msg.source.filename, dest); - } -}; - -template -class short_filename_formatter final : public flag_formatter -{ -public: - explicit short_filename_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - static const char *basename(const char *filename) - { - const char *rv = std::strrchr(filename, os::folder_sep); - return rv != nullptr ? rv + 1 : filename; - } - - void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override - { - if (msg.source.empty()) - { - return; - } - auto filename = basename(msg.source.filename); - size_t text_size = padinfo_.enabled() ? std::char_traits::length(filename) : 0; - ScopedPadder p(text_size, padinfo_, dest); - fmt_helper::append_string_view(filename, dest); - } -}; - -template -class source_linenum_formatter final : public flag_formatter -{ -public: - explicit source_linenum_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override - { - if (msg.source.empty()) - { - return; - } - - auto field_size = fmt_helper::count_digits(msg.source.line); - ScopedPadder p(field_size, padinfo_, dest); - fmt_helper::append_int(msg.source.line, dest); - } -}; - -// print source funcname -template -class source_funcname_formatter final : public flag_formatter -{ -public: - explicit source_funcname_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override - { - if (msg.source.empty()) - { - return; - } - size_t text_size = padinfo_.enabled() ? std::char_traits::length(msg.source.funcname) : 0; - ScopedPadder p(text_size, padinfo_, dest); - fmt_helper::append_string_view(msg.source.funcname, dest); - } -}; - -// print elapsed time since last message -template - -class elapsed_formatter final : public flag_formatter -{ -public: - using DurationUnits = Units; - - explicit elapsed_formatter(padding_info padinfo) - : flag_formatter(padinfo) - , last_message_time_(log_clock::now()) - {} - - void format(const details::log_msg &msg, const std::tm &, memory_buf_t &dest) override - { - auto delta = (std::max)(msg.time - last_message_time_, log_clock::duration::zero()); - auto delta_units = std::chrono::duration_cast(delta); - last_message_time_ = msg.time; - ScopedPadder p(6, padinfo_, dest); - fmt_helper::pad6(static_cast(delta_units.count()), dest); - } - -protected: - log_clock::time_point last_message_time_; -}; - -// Full info formatter -// pattern: [%Y-%m-%d %H:%M:%S.%e] [%n] [%l] %v -class full_formatter final : public flag_formatter -{ -public: - explicit full_formatter(padding_info padinfo) - : flag_formatter(padinfo) - {} - - void format(const details::log_msg &msg, const std::tm &tm_time, memory_buf_t &dest) override - { - using std::chrono::duration_cast; - using std::chrono::milliseconds; - using std::chrono::seconds; - -#ifndef SPDLOG_NO_DATETIME - - // cache the date/time part for the next second. - auto duration = msg.time.time_since_epoch(); - auto secs = duration_cast(duration); - - if (cache_timestamp_ != secs || cached_datetime_.size() == 0) - { - cached_datetime_.clear(); - cached_datetime_.push_back('['); - fmt_helper::append_int(tm_time.tm_year + 1900, cached_datetime_); - cached_datetime_.push_back('-'); - - fmt_helper::pad2(tm_time.tm_mon + 1, cached_datetime_); - cached_datetime_.push_back('-'); - - fmt_helper::pad2(tm_time.tm_mday, cached_datetime_); - cached_datetime_.push_back(' '); - - fmt_helper::pad2(tm_time.tm_hour, cached_datetime_); - cached_datetime_.push_back(':'); - - fmt_helper::pad2(tm_time.tm_min, cached_datetime_); - cached_datetime_.push_back(':'); - - fmt_helper::pad2(tm_time.tm_sec, cached_datetime_); - cached_datetime_.push_back('.'); - - cache_timestamp_ = secs; - } - dest.append(cached_datetime_.begin(), cached_datetime_.end()); - - auto millis = fmt_helper::time_fraction(msg.time); - fmt_helper::pad3(static_cast(millis.count()), dest); - dest.push_back(']'); - dest.push_back(' '); - -#else // no datetime needed - (void)tm_time; -#endif - -#ifndef SPDLOG_NO_NAME - if (msg.logger_name.size() > 0) - { - dest.push_back('['); - // fmt_helper::append_str(*msg.logger_name, dest); - fmt_helper::append_string_view(msg.logger_name, dest); - dest.push_back(']'); - dest.push_back(' '); - } -#endif - dest.push_back('['); - // wrap the level name with color - msg.color_range_start = dest.size(); - // fmt_helper::append_string_view(level::to_c_str(msg.level), dest); - fmt_helper::append_string_view(level::to_string_view(msg.level), dest); - msg.color_range_end = dest.size(); - dest.push_back(']'); - dest.push_back(' '); - - // add source location if present - if (!msg.source.empty()) - { - dest.push_back('['); - const char *filename = details::short_filename_formatter::basename(msg.source.filename); - fmt_helper::append_string_view(filename, dest); - dest.push_back(':'); - fmt_helper::append_int(msg.source.line, dest); - dest.push_back(']'); - dest.push_back(' '); - } - // fmt_helper::append_string_view(msg.msg(), dest); - fmt_helper::append_string_view(msg.payload, dest); - } - -private: - std::chrono::seconds cache_timestamp_{0}; - memory_buf_t cached_datetime_; -}; - -} // namespace details - -SPDLOG_INLINE pattern_formatter::pattern_formatter(std::string pattern, pattern_time_type time_type, std::string eol) - : pattern_(std::move(pattern)) - , eol_(std::move(eol)) - , pattern_time_type_(time_type) - , last_log_secs_(0) -{ - std::memset(&cached_tm_, 0, sizeof(cached_tm_)); - compile_pattern_(pattern_); -} - -// use by default full formatter for if pattern is not given -SPDLOG_INLINE pattern_formatter::pattern_formatter(pattern_time_type time_type, std::string eol) - : pattern_("%+") - , eol_(std::move(eol)) - , pattern_time_type_(time_type) - , last_log_secs_(0) -{ - std::memset(&cached_tm_, 0, sizeof(cached_tm_)); - formatters_.push_back(details::make_unique(details::padding_info{})); -} - -SPDLOG_INLINE std::unique_ptr pattern_formatter::clone() const -{ - return details::make_unique(pattern_, pattern_time_type_, eol_); -} - -SPDLOG_INLINE void pattern_formatter::format(const details::log_msg &msg, memory_buf_t &dest) -{ -#ifndef SPDLOG_NO_DATETIME - auto secs = std::chrono::duration_cast(msg.time.time_since_epoch()); - if (secs != last_log_secs_) - { - cached_tm_ = get_time_(msg); - last_log_secs_ = secs; - } -#endif - for (auto &f : formatters_) - { - f->format(msg, cached_tm_, dest); - } - // write eol - details::fmt_helper::append_string_view(eol_, dest); -} - -SPDLOG_INLINE std::tm pattern_formatter::get_time_(const details::log_msg &msg) -{ - if (pattern_time_type_ == pattern_time_type::local) - { - return details::os::localtime(log_clock::to_time_t(msg.time)); - } - return details::os::gmtime(log_clock::to_time_t(msg.time)); -} - -template -SPDLOG_INLINE void pattern_formatter::handle_flag_(char flag, details::padding_info padding) -{ - switch (flag) - { - - case ('+'): // default formatter - formatters_.push_back(details::make_unique(padding)); - break; - - case 'n': // logger name - formatters_.push_back(details::make_unique>(padding)); - break; - - case 'l': // level - formatters_.push_back(details::make_unique>(padding)); - break; - - case 'L': // short level - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('t'): // thread id - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('v'): // the message text - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('a'): // weekday - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('A'): // short weekday - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('b'): - case ('h'): // month - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('B'): // short month - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('c'): // datetime - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('C'): // year 2 digits - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('Y'): // year 4 digits - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('D'): - case ('x'): // datetime MM/DD/YY - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('m'): // month 1-12 - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('d'): // day of month 1-31 - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('H'): // hours 24 - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('I'): // hours 12 - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('M'): // minutes - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('S'): // seconds - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('e'): // milliseconds - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('f'): // microseconds - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('F'): // nanoseconds - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('E'): // seconds since epoch - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('p'): // am/pm - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('r'): // 12 hour clock 02:55:02 pm - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('R'): // 24-hour HH:MM time - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('T'): - case ('X'): // ISO 8601 time format (HH:MM:SS) - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('z'): // timezone - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('P'): // pid - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('^'): // color range start - formatters_.push_back(details::make_unique(padding)); - break; - - case ('$'): // color range end - formatters_.push_back(details::make_unique(padding)); - break; - - case ('@'): // source location (filename:filenumber) - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('s'): // short source filename - without directory name - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('g'): // full source filename - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('#'): // source line number - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('!'): // source funcname - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('%'): // % char - formatters_.push_back(details::make_unique('%')); - break; - - case ('u'): // elapsed time since last log message in nanos - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('i'): // elapsed time since last log message in micros - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('o'): // elapsed time since last log message in millis - formatters_.push_back(details::make_unique>(padding)); - break; - - case ('O'): // elapsed time since last log message in seconds - formatters_.push_back(details::make_unique>(padding)); - break; - - default: // Unknown flag appears as is - auto unknown_flag = details::make_unique(); - unknown_flag->add_ch('%'); - unknown_flag->add_ch(flag); - formatters_.push_back((std::move(unknown_flag))); - break; - } -} - -// Extract given pad spec (e.g. %8X) -// Advance the given it pass the end of the padding spec found (if any) -// Return padding. -SPDLOG_INLINE details::padding_info pattern_formatter::handle_padspec_(std::string::const_iterator &it, std::string::const_iterator end) -{ - using details::padding_info; - using details::scoped_padder; - const size_t max_width = 64; - if (it == end) - { - return padding_info{}; - } - - padding_info::pad_side side; - switch (*it) - { - case '-': - side = padding_info::right; - ++it; - break; - case '=': - side = padding_info::center; - ++it; - break; - default: - side = details::padding_info::left; - break; - } - - if (it == end || !std::isdigit(static_cast(*it))) - { - return padding_info{0, side}; - } - - auto width = static_cast(*it) - '0'; - for (++it; it != end && std::isdigit(static_cast(*it)); ++it) - { - auto digit = static_cast(*it) - '0'; - width = width * 10 + digit; - } - return details::padding_info{std::min(width, max_width), side}; -} - -SPDLOG_INLINE void pattern_formatter::compile_pattern_(const std::string &pattern) -{ - auto end = pattern.end(); - std::unique_ptr user_chars; - formatters_.clear(); - for (auto it = pattern.begin(); it != end; ++it) - { - if (*it == '%') - { - if (user_chars) // append user chars found so far - { - formatters_.push_back(std::move(user_chars)); - } - - auto padding = handle_padspec_(++it, end); - - if (it != end) - { - if (padding.enabled()) - { - handle_flag_(*it, padding); - } - else - { - handle_flag_(*it, padding); - } - } - else - { - break; - } - } - else // chars not following the % sign should be displayed as is - { - if (!user_chars) - { - user_chars = details::make_unique(); - } - user_chars->add_ch(*it); - } - } - if (user_chars) // append raw chars found so far - { - formatters_.push_back(std::move(user_chars)); - } -} -} // namespace spdlog diff --git a/Source/ThirdParty/spdlog/details/pattern_formatter.h b/Source/ThirdParty/spdlog/details/pattern_formatter.h deleted file mode 100644 index 7191ea9b3..000000000 --- a/Source/ThirdParty/spdlog/details/pattern_formatter.h +++ /dev/null @@ -1,99 +0,0 @@ -// Copyright(c) 2015-present, Gabi Melman & spdlog contributors. -// Distributed under the MIT License (http://opensource.org/licenses/MIT) - -#pragma once - -#include "spdlog/common.h" -#include "spdlog/details/log_msg.h" -#include "spdlog/details/os.h" -#include "spdlog/formatter.h" - -#include -#include -#include - -#include -#include - -namespace spdlog { -namespace details { - -// padding information. -struct padding_info -{ - enum pad_side - { - left, - right, - center - }; - - padding_info() = default; - padding_info(size_t width, padding_info::pad_side side) - : width_(width) - , side_(side) - {} - - bool enabled() const - { - return width_ != 0; - } - const size_t width_ = 0; - const pad_side side_ = left; -}; - -class flag_formatter -{ -public: - explicit flag_formatter(padding_info padinfo) - : padinfo_(padinfo) - {} - flag_formatter() = default; - virtual ~flag_formatter() = default; - virtual void format(const details::log_msg &msg, const std::tm &tm_time, memory_buf_t &dest) = 0; - -protected: - padding_info padinfo_; -}; - -} // namespace details - -class pattern_formatter final : public formatter -{ -public: - explicit pattern_formatter( - std::string pattern, pattern_time_type time_type = pattern_time_type::local, std::string eol = spdlog::details::os::default_eol); - - // use default pattern is not given - explicit pattern_formatter(pattern_time_type time_type = pattern_time_type::local, std::string eol = spdlog::details::os::default_eol); - - pattern_formatter(const pattern_formatter &other) = delete; - pattern_formatter &operator=(const pattern_formatter &other) = delete; - - std::unique_ptr clone() const override; - void format(const details::log_msg &msg, memory_buf_t &dest) override; - -private: - std::string pattern_; - std::string eol_; - pattern_time_type pattern_time_type_; - std::tm cached_tm_; - std::chrono::seconds last_log_secs_; - std::vector> formatters_; - - std::tm get_time_(const details::log_msg &msg); - template - void handle_flag_(char flag, details::padding_info padding); - - // Extract given pad spec (e.g. %8X) - // Advance the given it pass the end of the padding spec found (if any) - // Return padding. - details::padding_info handle_padspec_(std::string::const_iterator &it, std::string::const_iterator end); - - void compile_pattern_(const std::string &pattern); -}; -} // namespace spdlog - -#ifdef SPDLOG_HEADER_ONLY -#include "pattern_formatter-inl.h" -#endif diff --git a/Source/ThirdParty/spdlog/details/periodic_worker-inl.h b/Source/ThirdParty/spdlog/details/periodic_worker-inl.h index 1af6288a1..c12e9e123 100644 --- a/Source/ThirdParty/spdlog/details/periodic_worker-inl.h +++ b/Source/ThirdParty/spdlog/details/periodic_worker-inl.h @@ -4,38 +4,15 @@ #pragma once #ifndef SPDLOG_HEADER_ONLY -#include "spdlog/details/periodic_worker.h" +#include #endif namespace spdlog { namespace details { -SPDLOG_INLINE periodic_worker::periodic_worker(const std::function &callback_fun, std::chrono::seconds interval) -{ - active_ = (interval > std::chrono::seconds::zero()); - if (!active_) - { - return; - } - - worker_thread_ = std::thread([this, callback_fun, interval]() { - for (;;) - { - std::unique_lock lock(this->mutex_); - if (this->cv_.wait_for(lock, interval, [this] { return !this->active_; })) - { - return; // active_ == false, so exit this thread - } - callback_fun(); - } - }); -} - // stop the worker thread and join it -SPDLOG_INLINE periodic_worker::~periodic_worker() -{ - if (worker_thread_.joinable()) - { +SPDLOG_INLINE periodic_worker::~periodic_worker() { + if (worker_thread_.joinable()) { { std::lock_guard lock(mutex_); active_ = false; @@ -45,5 +22,5 @@ SPDLOG_INLINE periodic_worker::~periodic_worker() } } -} // namespace details -} // namespace spdlog +} // namespace details +} // namespace spdlog diff --git a/Source/ThirdParty/spdlog/details/periodic_worker.h b/Source/ThirdParty/spdlog/details/periodic_worker.h index d3b5c639a..2f59bb33a 100644 --- a/Source/ThirdParty/spdlog/details/periodic_worker.h +++ b/Source/ThirdParty/spdlog/details/periodic_worker.h @@ -7,7 +7,8 @@ // // RAII over the owned thread: // creates the thread on construction. -// stops and joins the thread on destruction (if the thread is executing a callback, wait for it to finish first). +// stops and joins the thread on destruction (if the thread is executing a callback, wait for it +// to finish first). #include #include @@ -17,10 +18,27 @@ namespace spdlog { namespace details { -class periodic_worker -{ +class SPDLOG_API periodic_worker { public: - periodic_worker(const std::function &callback_fun, std::chrono::seconds interval); + template + periodic_worker(const std::function &callback_fun, + std::chrono::duration interval) { + active_ = (interval > std::chrono::duration::zero()); + if (!active_) { + return; + } + + worker_thread_ = std::thread([this, callback_fun, interval]() { + for (;;) { + std::unique_lock lock(this->mutex_); + if (this->cv_.wait_for(lock, interval, [this] { return !this->active_; })) { + return; // active_ == false, so exit this thread + } + callback_fun(); + } + }); + } + std::thread &get_thread() { return worker_thread_; } periodic_worker(const periodic_worker &) = delete; periodic_worker &operator=(const periodic_worker &) = delete; // stop the worker thread and join it @@ -32,8 +50,8 @@ class periodic_worker std::mutex mutex_; std::condition_variable cv_; }; -} // namespace details -} // namespace spdlog +} // namespace details +} // namespace spdlog #ifdef SPDLOG_HEADER_ONLY #include "periodic_worker-inl.h" diff --git a/Source/ThirdParty/spdlog/details/registry-inl.h b/Source/ThirdParty/spdlog/details/registry-inl.h index 075a0c7e5..576eebe08 100644 --- a/Source/ThirdParty/spdlog/details/registry-inl.h +++ b/Source/ThirdParty/spdlog/details/registry-inl.h @@ -4,22 +4,22 @@ #pragma once #ifndef SPDLOG_HEADER_ONLY -#include "spdlog/details/registry.h" +#include #endif -#include "spdlog/common.h" -#include "spdlog/details/periodic_worker.h" -#include "spdlog/logger.h" -#include "spdlog/details/pattern_formatter.h" +#include +#include +#include +#include #ifndef SPDLOG_DISABLE_DEFAULT_LOGGER // support for the default stdout color logger #ifdef _WIN32 -#include "spdlog/sinks/wincolor_sink.h" +#include #else -#include "spdlog/sinks/ansicolor_sink.h" +#include #endif -#endif // SPDLOG_DISABLE_DEFAULT_LOGGER +#endif // SPDLOG_DISABLE_DEFAULT_LOGGER #include #include @@ -31,11 +31,9 @@ namespace spdlog { namespace details { SPDLOG_INLINE registry::registry() - : formatter_(new pattern_formatter()) -{ - + : formatter_(new pattern_formatter()) { #ifndef SPDLOG_DISABLE_DEFAULT_LOGGER - // create default logger (ansicolor_stdout_sink_mt or wincolor_stdout_sink_mt in windows). +// create default logger (ansicolor_stdout_sink_mt or wincolor_stdout_sink_mt in windows). #ifdef _WIN32 auto color_sink = std::make_shared(); #else @@ -46,47 +44,52 @@ SPDLOG_INLINE registry::registry() default_logger_ = std::make_shared(default_logger_name, std::move(color_sink)); loggers_[default_logger_name] = default_logger_; -#endif // SPDLOG_DISABLE_DEFAULT_LOGGER +#endif // SPDLOG_DISABLE_DEFAULT_LOGGER } -SPDLOG_INLINE void registry::register_logger(std::shared_ptr new_logger) -{ + +SPDLOG_INLINE registry::~registry() = default; + +SPDLOG_INLINE void registry::register_logger(std::shared_ptr new_logger) { std::lock_guard lock(logger_map_mutex_); register_logger_(std::move(new_logger)); } -SPDLOG_INLINE void registry::initialize_logger(std::shared_ptr new_logger) -{ +SPDLOG_INLINE void registry::register_or_replace(std::shared_ptr new_logger) { + std::lock_guard lock(logger_map_mutex_); + register_or_replace_(std::move(new_logger)); +} + +SPDLOG_INLINE void registry::initialize_logger(std::shared_ptr new_logger) { std::lock_guard lock(logger_map_mutex_); new_logger->set_formatter(formatter_->clone()); - if (err_handler_) - { + if (err_handler_) { new_logger->set_error_handler(err_handler_); } - new_logger->set_level(level_); + // set new level according to previously configured level or default level + auto it = log_levels_.find(new_logger->name()); + auto new_level = it != log_levels_.end() ? it->second : global_log_level_; + new_logger->set_level(new_level); + new_logger->flush_on(flush_level_); - if (backtrace_n_messages_ > 0) - { + if (backtrace_n_messages_ > 0) { new_logger->enable_backtrace(backtrace_n_messages_); } - if (automatic_registration_) - { + if (automatic_registration_) { register_logger_(std::move(new_logger)); } } -SPDLOG_INLINE std::shared_ptr registry::get(const std::string &logger_name) -{ +SPDLOG_INLINE std::shared_ptr registry::get(const std::string &logger_name) { std::lock_guard lock(logger_map_mutex_); auto found = loggers_.find(logger_name); return found == loggers_.end() ? nullptr : found->second; } -SPDLOG_INLINE std::shared_ptr registry::default_logger() -{ +SPDLOG_INLINE std::shared_ptr registry::default_logger() { std::lock_guard lock(logger_map_mutex_); return default_logger_; } @@ -95,147 +98,110 @@ SPDLOG_INLINE std::shared_ptr registry::default_logger() // To be used directly by the spdlog default api (e.g. spdlog::info) // This make the default API faster, but cannot be used concurrently with set_default_logger(). // e.g do not call set_default_logger() from one thread while calling spdlog::info() from another. -SPDLOG_INLINE logger *registry::get_default_raw() -{ - return default_logger_.get(); -} +SPDLOG_INLINE logger *registry::get_default_raw() { return default_logger_.get(); } // set default logger. -// default logger is stored in default_logger_ (for faster retrieval) and in the loggers_ map. -SPDLOG_INLINE void registry::set_default_logger(std::shared_ptr new_default_logger) -{ +// the default logger is stored in default_logger_ (for faster retrieval) and in the loggers_ map. +SPDLOG_INLINE void registry::set_default_logger(std::shared_ptr new_default_logger) { std::lock_guard lock(logger_map_mutex_); - // remove previous default logger from the map - if (default_logger_ != nullptr) - { - loggers_.erase(default_logger_->name()); - } - if (new_default_logger != nullptr) - { + if (new_default_logger != nullptr) { loggers_[new_default_logger->name()] = new_default_logger; } default_logger_ = std::move(new_default_logger); } -SPDLOG_INLINE void registry::set_tp(std::shared_ptr tp) -{ +SPDLOG_INLINE void registry::set_tp(std::shared_ptr tp) { std::lock_guard lock(tp_mutex_); tp_ = std::move(tp); } -SPDLOG_INLINE std::shared_ptr registry::get_tp() -{ +SPDLOG_INLINE std::shared_ptr registry::get_tp() { std::lock_guard lock(tp_mutex_); return tp_; } // Set global formatter. Each sink in each logger will get a clone of this object -SPDLOG_INLINE void registry::set_formatter(std::unique_ptr formatter) -{ +SPDLOG_INLINE void registry::set_formatter(std::unique_ptr formatter) { std::lock_guard lock(logger_map_mutex_); formatter_ = std::move(formatter); - for (auto &l : loggers_) - { + for (auto &l : loggers_) { l.second->set_formatter(formatter_->clone()); } } -SPDLOG_INLINE void registry::enable_backtrace(size_t n_messages) -{ +SPDLOG_INLINE void registry::enable_backtrace(size_t n_messages) { std::lock_guard lock(logger_map_mutex_); backtrace_n_messages_ = n_messages; - for (auto &l : loggers_) - { + for (auto &l : loggers_) { l.second->enable_backtrace(n_messages); } } -SPDLOG_INLINE void registry::disable_backtrace() -{ +SPDLOG_INLINE void registry::disable_backtrace() { std::lock_guard lock(logger_map_mutex_); backtrace_n_messages_ = 0; - for (auto &l : loggers_) - { + for (auto &l : loggers_) { l.second->disable_backtrace(); } } -SPDLOG_INLINE void registry::set_level(level::level_enum log_level) -{ +SPDLOG_INLINE void registry::set_level(level::level_enum log_level) { std::lock_guard lock(logger_map_mutex_); - for (auto &l : loggers_) - { + for (auto &l : loggers_) { l.second->set_level(log_level); } - level_ = log_level; + global_log_level_ = log_level; } -SPDLOG_INLINE void registry::flush_on(level::level_enum log_level) -{ +SPDLOG_INLINE void registry::flush_on(level::level_enum log_level) { std::lock_guard lock(logger_map_mutex_); - for (auto &l : loggers_) - { + for (auto &l : loggers_) { l.second->flush_on(log_level); } flush_level_ = log_level; } -SPDLOG_INLINE void registry::flush_every(std::chrono::seconds interval) -{ - std::lock_guard lock(flusher_mutex_); - std::function clbk = std::bind(®istry::flush_all, this); - periodic_flusher_ = details::make_unique(clbk, interval); -} - -SPDLOG_INLINE void registry::set_error_handler(void (*handler)(const std::string &msg)) -{ +SPDLOG_INLINE void registry::set_error_handler(err_handler handler) { std::lock_guard lock(logger_map_mutex_); - for (auto &l : loggers_) - { + for (auto &l : loggers_) { l.second->set_error_handler(handler); } - err_handler_ = handler; + err_handler_ = std::move(handler); } -SPDLOG_INLINE void registry::apply_all(const std::function)> &fun) -{ +SPDLOG_INLINE void registry::apply_all( + const std::function)> &fun) { std::lock_guard lock(logger_map_mutex_); - for (auto &l : loggers_) - { + for (auto &l : loggers_) { fun(l.second); } } -SPDLOG_INLINE void registry::flush_all() -{ +SPDLOG_INLINE void registry::flush_all() { std::lock_guard lock(logger_map_mutex_); - for (auto &l : loggers_) - { + for (auto &l : loggers_) { l.second->flush(); } } -SPDLOG_INLINE void registry::drop(const std::string &logger_name) -{ +SPDLOG_INLINE void registry::drop(const std::string &logger_name) { std::lock_guard lock(logger_map_mutex_); + auto is_default_logger = default_logger_ && default_logger_->name() == logger_name; loggers_.erase(logger_name); - if (default_logger_ && default_logger_->name() == logger_name) - { + if (is_default_logger) { default_logger_.reset(); } } -SPDLOG_INLINE void registry::drop_all() -{ +SPDLOG_INLINE void registry::drop_all() { std::lock_guard lock(logger_map_mutex_); loggers_.clear(); default_logger_.reset(); } // clean all resources and threads started by the registry -SPDLOG_INLINE void registry::shutdown() -{ +SPDLOG_INLINE void registry::shutdown() { { std::lock_guard lock(flusher_mutex_); periodic_flusher_.reset(); @@ -249,36 +215,56 @@ SPDLOG_INLINE void registry::shutdown() } } -SPDLOG_INLINE std::recursive_mutex ®istry::tp_mutex() -{ - return tp_mutex_; +SPDLOG_INLINE std::recursive_mutex ®istry::tp_mutex() { return tp_mutex_; } + +SPDLOG_INLINE void registry::set_automatic_registration(bool automatic_registration) { + std::lock_guard lock(logger_map_mutex_); + automatic_registration_ = automatic_registration; } -SPDLOG_INLINE void registry::set_automatic_registration(bool automatic_regsistration) -{ +SPDLOG_INLINE void registry::set_levels(log_levels levels, level::level_enum *global_level) { std::lock_guard lock(logger_map_mutex_); - automatic_registration_ = automatic_regsistration; + log_levels_ = std::move(levels); + auto global_level_requested = global_level != nullptr; + global_log_level_ = global_level_requested ? *global_level : global_log_level_; + + for (auto &logger : loggers_) { + auto logger_entry = log_levels_.find(logger.first); + if (logger_entry != log_levels_.end()) { + logger.second->set_level(logger_entry->second); + } else if (global_level_requested) { + logger.second->set_level(*global_level); + } + } } -SPDLOG_INLINE registry ®istry::instance() -{ +SPDLOG_INLINE registry ®istry::instance() { static registry s_instance; return s_instance; } -SPDLOG_INLINE void registry::throw_if_exists_(const std::string &logger_name) -{ - if (loggers_.find(logger_name) != loggers_.end()) - { - SPDLOG_THROW(spdlog_ex("logger with name '" + logger_name + "' already exists")); +SPDLOG_INLINE void registry::apply_logger_env_levels(std::shared_ptr new_logger) { + std::lock_guard lock(logger_map_mutex_); + auto it = log_levels_.find(new_logger->name()); + auto new_level = it != log_levels_.end() ? it->second : global_log_level_; + new_logger->set_level(new_level); +} + +SPDLOG_INLINE void registry::throw_if_exists_(const std::string &logger_name) { + if (loggers_.find(logger_name) != loggers_.end()) { + throw_spdlog_ex("logger with name '" + logger_name + "' already exists"); } } -SPDLOG_INLINE void registry::register_logger_(std::shared_ptr new_logger) -{ - auto logger_name = new_logger->name(); +SPDLOG_INLINE void registry::register_logger_(std::shared_ptr new_logger) { + auto &logger_name = new_logger->name(); throw_if_exists_(logger_name); loggers_[logger_name] = std::move(new_logger); } -} // namespace details -} // namespace spdlog + +SPDLOG_INLINE void registry::register_or_replace_(std::shared_ptr new_logger) { + loggers_[new_logger->name()] = std::move(new_logger); +} + +} // namespace details +} // namespace spdlog diff --git a/Source/ThirdParty/spdlog/details/registry.h b/Source/ThirdParty/spdlog/details/registry.h index 35a117d9a..576803eeb 100644 --- a/Source/ThirdParty/spdlog/details/registry.h +++ b/Source/ThirdParty/spdlog/details/registry.h @@ -8,29 +8,30 @@ // If user requests a non existing logger, nullptr will be returned // This class is thread safe -#include "spdlog/common.h" +#include +#include #include #include #include +#include #include #include -#include namespace spdlog { class logger; namespace details { class thread_pool; -class periodic_worker; -class registry -{ +class SPDLOG_API registry { public: + using log_levels = std::unordered_map; registry(const registry &) = delete; registry &operator=(const registry &) = delete; void register_logger(std::shared_ptr new_logger); + void register_or_replace(std::shared_ptr new_logger); void initialize_logger(std::shared_ptr new_logger); std::shared_ptr get(const std::string &logger_name); std::shared_ptr default_logger(); @@ -38,11 +39,14 @@ class registry // Return raw ptr to the default logger. // To be used directly by the spdlog default api (e.g. spdlog::info) // This make the default API faster, but cannot be used concurrently with set_default_logger(). - // e.g do not call set_default_logger() from one thread while calling spdlog::info() from another. + // e.g do not call set_default_logger() from one thread while calling spdlog::info() from + // another. logger *get_default_raw(); - // set default logger. + // set default logger and add it to the registry if not registered already. // default logger is stored in default_logger_ (for faster retrieval) and in the loggers_ map. + // Note: Make sure to unregister it when no longer needed or before calling again with a new + // logger. void set_default_logger(std::shared_ptr new_default_logger); void set_tp(std::shared_ptr tp); @@ -60,9 +64,19 @@ class registry void flush_on(level::level_enum log_level); - void flush_every(std::chrono::seconds interval); + template + void flush_every(std::chrono::duration interval) { + std::lock_guard lock(flusher_mutex_); + auto clbk = [this]() { this->flush_all(); }; + periodic_flusher_ = details::make_unique(clbk, interval); + } + + std::unique_ptr &get_flusher() { + std::lock_guard lock(flusher_mutex_); + return periodic_flusher_; + } - void set_error_handler(void (*handler)(const std::string &msg)); + void set_error_handler(err_handler handler); void apply_all(const std::function)> &fun); @@ -77,23 +91,31 @@ class registry std::recursive_mutex &tp_mutex(); - void set_automatic_registration(bool automatic_regsistration); + void set_automatic_registration(bool automatic_registration); + + // set levels for all existing/future loggers. global_level can be null if should not set. + void set_levels(log_levels levels, level::level_enum *global_level); static registry &instance(); + void apply_logger_env_levels(std::shared_ptr new_logger); + private: registry(); - ~registry() = default; + ~registry(); void throw_if_exists_(const std::string &logger_name); void register_logger_(std::shared_ptr new_logger); + void register_or_replace_(std::shared_ptr new_logger); + bool set_level_from_cfg_(logger *logger); std::mutex logger_map_mutex_, flusher_mutex_; std::recursive_mutex tp_mutex_; std::unordered_map> loggers_; + log_levels log_levels_; std::unique_ptr formatter_; - level::level_enum level_ = level::info; + spdlog::level::level_enum global_log_level_ = level::info; level::level_enum flush_level_ = level::off; - void (*err_handler_)(const std::string &msg); + err_handler err_handler_; std::shared_ptr tp_; std::unique_ptr periodic_flusher_; std::shared_ptr default_logger_; @@ -101,8 +123,8 @@ class registry size_t backtrace_n_messages_ = 0; }; -} // namespace details -} // namespace spdlog +} // namespace details +} // namespace spdlog #ifdef SPDLOG_HEADER_ONLY #include "registry-inl.h" diff --git a/Source/ThirdParty/spdlog/details/synchronous_factory.h b/Source/ThirdParty/spdlog/details/synchronous_factory.h index 68f5c214b..4bd5a51c8 100644 --- a/Source/ThirdParty/spdlog/details/synchronous_factory.h +++ b/Source/ThirdParty/spdlog/details/synchronous_factory.h @@ -10,15 +10,13 @@ namespace spdlog { // Default logger factory- creates synchronous loggers class logger; -struct synchronous_factory -{ - template - static std::shared_ptr create(std::string logger_name, SinkArgs &&... args) - { +struct synchronous_factory { + template + static std::shared_ptr create(std::string logger_name, SinkArgs &&...args) { auto sink = std::make_shared(std::forward(args)...); auto new_logger = std::make_shared(std::move(logger_name), std::move(sink)); details::registry::instance().initialize_logger(new_logger); return new_logger; } }; -} // namespace spdlog \ No newline at end of file +} // namespace spdlog diff --git a/Source/ThirdParty/spdlog/details/tcp_client-windows.h b/Source/ThirdParty/spdlog/details/tcp_client-windows.h new file mode 100644 index 000000000..956f9f9b6 --- /dev/null +++ b/Source/ThirdParty/spdlog/details/tcp_client-windows.h @@ -0,0 +1,217 @@ +// Copyright(c) 2015-present, Gabi Melman & spdlog contributors. +// Distributed under the MIT License (http://opensource.org/licenses/MIT) + +#pragma once + +#define WIN32_LEAN_AND_MEAN +// tcp client helper +#include +#include + +#include +#include +#include +#include +#include +#include + +#pragma comment(lib, "Ws2_32.lib") +#pragma comment(lib, "Mswsock.lib") +#pragma comment(lib, "AdvApi32.lib") + +namespace spdlog { +namespace details { +class tcp_client { + SOCKET socket_ = INVALID_SOCKET; + + static void init_winsock_() { + WSADATA wsaData; + auto rv = WSAStartup(MAKEWORD(2, 2), &wsaData); + if (rv != 0) { + throw_winsock_error_("WSAStartup failed", ::WSAGetLastError()); + } + } + + static void throw_winsock_error_(const std::string &msg, int last_error) { + char buf[512]; + ::FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, + last_error, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), buf, + (sizeof(buf) / sizeof(char)), NULL); + + throw_spdlog_ex(fmt_lib::format("tcp_sink - {}: {}", msg, buf)); + } + +public: + tcp_client() { init_winsock_(); } + + ~tcp_client() { + close(); + ::WSACleanup(); + } + + bool is_connected() const { return socket_ != INVALID_SOCKET; } + + void close() { + ::closesocket(socket_); + socket_ = INVALID_SOCKET; + } + + SOCKET fd() const { return socket_; } + + int connect_socket_with_timeout(SOCKET sockfd, + const struct sockaddr *addr, + int addrlen, + const timeval &tv) { + // If no timeout requested, do a normal blocking connect. + if (tv.tv_sec == 0 && tv.tv_usec == 0) { + int rv = ::connect(sockfd, addr, addrlen); + if (rv == SOCKET_ERROR && WSAGetLastError() == WSAEISCONN) { + return 0; + } + return rv; + } + + // Switch to non‐blocking mode + u_long mode = 1UL; + if (::ioctlsocket(sockfd, FIONBIO, &mode) == SOCKET_ERROR) { + return SOCKET_ERROR; + } + + int rv = ::connect(sockfd, addr, addrlen); + int last_error = WSAGetLastError(); + if (rv == 0 || last_error == WSAEISCONN) { + mode = 0UL; + if (::ioctlsocket(sockfd, FIONBIO, &mode) == SOCKET_ERROR) { + return SOCKET_ERROR; + } + return 0; + } + if (last_error != WSAEWOULDBLOCK) { + // Real error + mode = 0UL; + if (::ioctlsocket(sockfd, FIONBIO, &mode)) { + return SOCKET_ERROR; + } + return SOCKET_ERROR; + } + + // Wait until socket is writable or timeout expires + fd_set wfds; + FD_ZERO(&wfds); + FD_SET(sockfd, &wfds); + + rv = ::select(0, nullptr, &wfds, nullptr, const_cast(&tv)); + + // Restore blocking mode regardless of select result + mode = 0UL; + if (::ioctlsocket(sockfd, FIONBIO, &mode) == SOCKET_ERROR) { + return SOCKET_ERROR; + } + + if (rv == 0) { + WSASetLastError(WSAETIMEDOUT); + return SOCKET_ERROR; + } + if (rv == SOCKET_ERROR) { + return SOCKET_ERROR; + } + + int so_error = 0; + int len = sizeof(so_error); + if (::getsockopt(sockfd, SOL_SOCKET, SO_ERROR, reinterpret_cast(&so_error), &len) == + SOCKET_ERROR) { + return SOCKET_ERROR; + } + if (so_error != 0 && so_error != WSAEISCONN) { + // connection failed + WSASetLastError(so_error); + return SOCKET_ERROR; + } + + return 0; // success + } + + // try to connect or throw on failure + void connect(const std::string &host, int port, int timeout_ms = 0) { + if (is_connected()) { + close(); + } + struct addrinfo hints {}; + ZeroMemory(&hints, sizeof(hints)); + + hints.ai_family = AF_UNSPEC; // To work with IPv4, IPv6, and so on + hints.ai_socktype = SOCK_STREAM; // TCP + hints.ai_flags = AI_NUMERICSERV; // port passed as as numeric value + hints.ai_protocol = 0; + + timeval tv; + tv.tv_sec = timeout_ms / 1000; + tv.tv_usec = (timeout_ms % 1000) * 1000; + + auto port_str = std::to_string(port); + struct addrinfo *addrinfo_result; + auto rv = ::getaddrinfo(host.c_str(), port_str.c_str(), &hints, &addrinfo_result); + int last_error = 0; + if (rv != 0) { + last_error = ::WSAGetLastError(); + WSACleanup(); + throw_winsock_error_("getaddrinfo failed", last_error); + } + + // Try each address until we successfully connect(2). + for (auto *rp = addrinfo_result; rp != nullptr; rp = rp->ai_next) { + socket_ = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol); + if (socket_ == INVALID_SOCKET) { + last_error = ::WSAGetLastError(); + WSACleanup(); + continue; + } + if (connect_socket_with_timeout(socket_, rp->ai_addr, (int)rp->ai_addrlen, tv) == 0) { + last_error = 0; + break; + } + last_error = WSAGetLastError(); + ::closesocket(socket_); + socket_ = INVALID_SOCKET; + } + ::freeaddrinfo(addrinfo_result); + if (socket_ == INVALID_SOCKET) { + WSACleanup(); + throw_winsock_error_("connect failed", last_error); + } + if (timeout_ms > 0) { + DWORD tv = static_cast(timeout_ms); + ::setsockopt(socket_, SOL_SOCKET, SO_RCVTIMEO, (const char *)&tv, sizeof(tv)); + ::setsockopt(socket_, SOL_SOCKET, SO_SNDTIMEO, (const char *)&tv, sizeof(tv)); + } + + // set TCP_NODELAY + int enable_flag = 1; + ::setsockopt(socket_, IPPROTO_TCP, TCP_NODELAY, reinterpret_cast(&enable_flag), + sizeof(enable_flag)); + } + + // Send exactly n_bytes of the given data. + // On error close the connection and throw. + void send(const char *data, size_t n_bytes) { + size_t bytes_sent = 0; + while (bytes_sent < n_bytes) { + const int send_flags = 0; + auto write_result = + ::send(socket_, data + bytes_sent, (int)(n_bytes - bytes_sent), send_flags); + if (write_result == SOCKET_ERROR) { + int last_error = ::WSAGetLastError(); + close(); + throw_winsock_error_("send failed", last_error); + } + + if (write_result == 0) // (probably should not happen but in any case..) + { + break; + } + bytes_sent += static_cast(write_result); + } + } +}; +} // namespace details +} // namespace spdlog diff --git a/Source/ThirdParty/spdlog/details/tcp_client.h b/Source/ThirdParty/spdlog/details/tcp_client.h new file mode 100644 index 000000000..a6f9b80db --- /dev/null +++ b/Source/ThirdParty/spdlog/details/tcp_client.h @@ -0,0 +1,203 @@ +// Copyright(c) 2015-present, Gabi Melman & spdlog contributors. +// Distributed under the MIT License (http://opensource.org/licenses/MIT) + +#pragma once + +#ifdef _WIN32 +#error include tcp_client-windows.h instead +#endif + +// tcp client helper +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +#include + +namespace spdlog { +namespace details { +class tcp_client { + int socket_ = -1; + +public: + bool is_connected() const { return socket_ != -1; } + + void close() { + if (is_connected()) { + ::close(socket_); + socket_ = -1; + } + } + + int fd() const { return socket_; } + + ~tcp_client() { close(); } + + int connect_socket_with_timeout(int sockfd, + const struct sockaddr *addr, + socklen_t addrlen, + const timeval &tv) { + // Blocking connect if timeout is zero + if (tv.tv_sec == 0 && tv.tv_usec == 0) { + int rv = ::connect(sockfd, addr, addrlen); + if (rv < 0 && errno == EISCONN) { + // already connected, treat as success + return 0; + } + return rv; + } + + // Non-blocking path + int orig_flags = ::fcntl(sockfd, F_GETFL, 0); + if (orig_flags < 0) { + return -1; + } + if (::fcntl(sockfd, F_SETFL, orig_flags | O_NONBLOCK) < 0) { + return -1; + } + + int rv = ::connect(sockfd, addr, addrlen); + if (rv == 0 || (rv < 0 && errno == EISCONN)) { + // immediate connect or already connected + ::fcntl(sockfd, F_SETFL, orig_flags); + return 0; + } + if (errno != EINPROGRESS) { + ::fcntl(sockfd, F_SETFL, orig_flags); + return -1; + } + + // wait for writability + fd_set wfds; + FD_ZERO(&wfds); + FD_SET(sockfd, &wfds); + + struct timeval tv_copy = tv; + rv = ::select(sockfd + 1, nullptr, &wfds, nullptr, &tv_copy); + if (rv <= 0) { + // timeout or error + ::fcntl(sockfd, F_SETFL, orig_flags); + if (rv == 0) errno = ETIMEDOUT; + return -1; + } + + // check socket error + int so_error = 0; + socklen_t len = sizeof(so_error); + if (::getsockopt(sockfd, SOL_SOCKET, SO_ERROR, &so_error, &len) < 0) { + ::fcntl(sockfd, F_SETFL, orig_flags); + return -1; + } + ::fcntl(sockfd, F_SETFL, orig_flags); + if (so_error != 0 && so_error != EISCONN) { + errno = so_error; + return -1; + } + + return 0; + } + + // try to connect or throw on failure + void connect(const std::string &host, int port, int timeout_ms = 0) { + close(); + struct addrinfo hints {}; + memset(&hints, 0, sizeof(struct addrinfo)); + hints.ai_family = AF_UNSPEC; // To work with IPv4, IPv6, and so on + hints.ai_socktype = SOCK_STREAM; // TCP + hints.ai_flags = AI_NUMERICSERV; // port passed as as numeric value + hints.ai_protocol = 0; + + struct timeval tv; + tv.tv_sec = timeout_ms / 1000; + tv.tv_usec = (timeout_ms % 1000) * 1000; + + auto port_str = std::to_string(port); + struct addrinfo *addrinfo_result; + auto rv = ::getaddrinfo(host.c_str(), port_str.c_str(), &hints, &addrinfo_result); + if (rv != 0) { + throw_spdlog_ex(fmt_lib::format("::getaddrinfo failed: {}", gai_strerror(rv))); + } + + // Try each address until we successfully connect(2). + int last_errno = 0; + for (auto *rp = addrinfo_result; rp != nullptr; rp = rp->ai_next) { +#if defined(SOCK_CLOEXEC) + const int flags = SOCK_CLOEXEC; +#else + const int flags = 0; +#endif + socket_ = ::socket(rp->ai_family, rp->ai_socktype | flags, rp->ai_protocol); + if (socket_ == -1) { + last_errno = errno; + continue; + } + ::fcntl(socket_, F_SETFD, FD_CLOEXEC); + if (connect_socket_with_timeout(socket_, rp->ai_addr, rp->ai_addrlen, tv) == 0) { + last_errno = 0; + break; + } + last_errno = errno; + ::close(socket_); + socket_ = -1; + } + ::freeaddrinfo(addrinfo_result); + if (socket_ == -1) { + throw_spdlog_ex("::connect failed", last_errno); + } + + if (timeout_ms > 0) { + // Set timeouts for send and recv + ::setsockopt(socket_, SOL_SOCKET, SO_RCVTIMEO, (const char *)&tv, sizeof(tv)); + ::setsockopt(socket_, SOL_SOCKET, SO_SNDTIMEO, (const char *)&tv, sizeof(tv)); + } + + // set TCP_NODELAY + int enable_flag = 1; + ::setsockopt(socket_, IPPROTO_TCP, TCP_NODELAY, reinterpret_cast(&enable_flag), + sizeof(enable_flag)); + + // prevent sigpipe on systems where MSG_NOSIGNAL is not available +#if defined(SO_NOSIGPIPE) && !defined(MSG_NOSIGNAL) + ::setsockopt(socket_, SOL_SOCKET, SO_NOSIGPIPE, reinterpret_cast(&enable_flag), + sizeof(enable_flag)); +#endif + +#if !defined(SO_NOSIGPIPE) && !defined(MSG_NOSIGNAL) +#error "tcp_sink would raise SIGPIPE since neither SO_NOSIGPIPE nor MSG_NOSIGNAL are available" +#endif + } + + // Send exactly n_bytes of the given data. + // On error close the connection and throw. + void send(const char *data, size_t n_bytes) { + size_t bytes_sent = 0; + while (bytes_sent < n_bytes) { +#if defined(MSG_NOSIGNAL) + const int send_flags = MSG_NOSIGNAL; +#else + const int send_flags = 0; +#endif + auto write_result = + ::send(socket_, data + bytes_sent, n_bytes - bytes_sent, send_flags); + if (write_result < 0) { + close(); + throw_spdlog_ex("write(2) failed", errno); + } + + if (write_result == 0) // (probably should not happen but in any case..) + { + break; + } + bytes_sent += static_cast(write_result); + } + } +}; +} // namespace details +} // namespace spdlog diff --git a/Source/ThirdParty/spdlog/details/thread_pool-inl.h b/Source/ThirdParty/spdlog/details/thread_pool-inl.h index 77d0b1fb3..3fefc6762 100644 --- a/Source/ThirdParty/spdlog/details/thread_pool-inl.h +++ b/Source/ThirdParty/spdlog/details/thread_pool-inl.h @@ -4,124 +4,122 @@ #pragma once #ifndef SPDLOG_HEADER_ONLY -#include "spdlog/details/thread_pool.h" +#include #endif -#include "spdlog/common.h" +#include +#include namespace spdlog { namespace details { -SPDLOG_INLINE thread_pool::thread_pool(size_t q_max_items, size_t threads_n, std::function on_thread_start) - : q_(q_max_items) -{ - if (threads_n == 0 || threads_n > 1000) - { - SPDLOG_THROW(spdlog_ex("spdlog::thread_pool(): invalid threads_n param (valid " - "range is 1-1000)")); +SPDLOG_INLINE thread_pool::thread_pool(size_t q_max_items, + size_t threads_n, + std::function on_thread_start, + std::function on_thread_stop) + : q_(q_max_items) { + if (threads_n == 0 || threads_n > 1000) { + throw_spdlog_ex( + "spdlog::thread_pool(): invalid threads_n param (valid " + "range is 1-1000)"); } - for (size_t i = 0; i < threads_n; i++) - { - threads_.emplace_back([this, on_thread_start] { + for (size_t i = 0; i < threads_n; i++) { + threads_.emplace_back([this, on_thread_start, on_thread_stop] { on_thread_start(); this->thread_pool::worker_loop_(); + on_thread_stop(); }); } } +SPDLOG_INLINE thread_pool::thread_pool(size_t q_max_items, + size_t threads_n, + std::function on_thread_start) + : thread_pool(q_max_items, threads_n, std::move(on_thread_start), [] {}) {} + SPDLOG_INLINE thread_pool::thread_pool(size_t q_max_items, size_t threads_n) - : thread_pool(q_max_items, threads_n, [] {}) -{} + : thread_pool(q_max_items, threads_n, [] {}, [] {}) {} // message all threads to terminate gracefully join them -SPDLOG_INLINE thread_pool::~thread_pool() -{ - SPDLOG_TRY - { - for (size_t i = 0; i < threads_.size(); i++) - { +SPDLOG_INLINE thread_pool::~thread_pool() { + SPDLOG_TRY { + for (size_t i = 0; i < threads_.size(); i++) { post_async_msg_(async_msg(async_msg_type::terminate), async_overflow_policy::block); } - for (auto &t : threads_) - { + for (auto &t : threads_) { t.join(); } } - SPDLOG_CATCH_ALL() {} + SPDLOG_CATCH_STD } -void SPDLOG_INLINE thread_pool::post_log(async_logger_ptr &&worker_ptr, const details::log_msg &msg, async_overflow_policy overflow_policy) -{ +void SPDLOG_INLINE thread_pool::post_log(async_logger_ptr &&worker_ptr, + const details::log_msg &msg, + async_overflow_policy overflow_policy) { async_msg async_m(std::move(worker_ptr), async_msg_type::log, msg); post_async_msg_(std::move(async_m), overflow_policy); } -void SPDLOG_INLINE thread_pool::post_flush(async_logger_ptr &&worker_ptr, async_overflow_policy overflow_policy) -{ +void SPDLOG_INLINE thread_pool::post_flush(async_logger_ptr &&worker_ptr, + async_overflow_policy overflow_policy) { post_async_msg_(async_msg(std::move(worker_ptr), async_msg_type::flush), overflow_policy); } -size_t SPDLOG_INLINE thread_pool::overrun_counter() -{ - return q_.overrun_counter(); -} +size_t SPDLOG_INLINE thread_pool::overrun_counter() { return q_.overrun_counter(); } + +void SPDLOG_INLINE thread_pool::reset_overrun_counter() { q_.reset_overrun_counter(); } + +size_t SPDLOG_INLINE thread_pool::discard_counter() { return q_.discard_counter(); } + +void SPDLOG_INLINE thread_pool::reset_discard_counter() { q_.reset_discard_counter(); } -void SPDLOG_INLINE thread_pool::post_async_msg_(async_msg &&new_msg, async_overflow_policy overflow_policy) -{ - if (overflow_policy == async_overflow_policy::block) - { +size_t SPDLOG_INLINE thread_pool::queue_size() { return q_.size(); } + +void SPDLOG_INLINE thread_pool::post_async_msg_(async_msg &&new_msg, + async_overflow_policy overflow_policy) { + if (overflow_policy == async_overflow_policy::block) { q_.enqueue(std::move(new_msg)); - } - else - { + } else if (overflow_policy == async_overflow_policy::overrun_oldest) { q_.enqueue_nowait(std::move(new_msg)); + } else { + assert(overflow_policy == async_overflow_policy::discard_new); + q_.enqueue_if_have_room(std::move(new_msg)); } } -void SPDLOG_INLINE thread_pool::worker_loop_() -{ - while (process_next_msg_()) {}; +void SPDLOG_INLINE thread_pool::worker_loop_() { + while (process_next_msg_()) { + } } // process next message in the queue -// return true if this thread should still be active (while no terminate msg -// was received) -bool SPDLOG_INLINE thread_pool::process_next_msg_() -{ +// returns true if this thread should still be active (while no terminated msg was received) +bool SPDLOG_INLINE thread_pool::process_next_msg_() { async_msg incoming_async_msg; - bool dequeued = q_.dequeue_for(incoming_async_msg, std::chrono::seconds(10)); - if (!dequeued) - { - return true; - } + q_.dequeue(incoming_async_msg); - switch (incoming_async_msg.msg_type) - { - case async_msg_type::log: - { - incoming_async_msg.worker_ptr->backend_sink_it_(incoming_async_msg); - return true; - } - case async_msg_type::flush: - { - incoming_async_msg.worker_ptr->backend_flush_(); - return true; - } + switch (incoming_async_msg.msg_type) { + case async_msg_type::log: { + incoming_async_msg.worker_ptr->backend_sink_it_(incoming_async_msg); + return true; + } + case async_msg_type::flush: { + incoming_async_msg.worker_ptr->backend_flush_(); + return true; + } - case async_msg_type::terminate: - { - return false; - } + case async_msg_type::terminate: { + return false; + } - default: - { - assert(false && "Unexpected async_msg_type"); - } + default: { + assert(false); + } } return true; } -} // namespace details -} // namespace spdlog +} // namespace details +} // namespace spdlog diff --git a/Source/ThirdParty/spdlog/details/thread_pool.h b/Source/ThirdParty/spdlog/details/thread_pool.h index 81bd12de4..b9303cf8d 100644 --- a/Source/ThirdParty/spdlog/details/thread_pool.h +++ b/Source/ThirdParty/spdlog/details/thread_pool.h @@ -3,15 +3,15 @@ #pragma once -#include "spdlog/details/log_msg_buffer.h" -#include "spdlog/details/mpmc_blocking_q.h" -#include "spdlog/details/os.h" +#include +#include +#include #include +#include #include #include #include -#include namespace spdlog { class async_logger; @@ -20,18 +20,11 @@ namespace details { using async_logger_ptr = std::shared_ptr; -enum class async_msg_type -{ - log, - flush, - terminate -}; +enum class async_msg_type { log, flush, terminate }; -#include "spdlog/details/log_msg_buffer.h" // Async msg to move to/from the queue // Movable only. should never be copied -struct async_msg : log_msg_buffer -{ +struct async_msg : log_msg_buffer { async_msg_type msg_type{async_msg_type::log}; async_logger_ptr worker_ptr; @@ -44,59 +37,63 @@ struct async_msg : log_msg_buffer // support for vs2013 move #if defined(_MSC_VER) && _MSC_VER <= 1800 async_msg(async_msg &&other) - : log_msg_buffer(std::move(other)) - , msg_type(other.msg_type) - , worker_ptr(std::move(other.worker_ptr)) - {} + : log_msg_buffer(std::move(other)), + msg_type(other.msg_type), + worker_ptr(std::move(other.worker_ptr)) {} - async_msg &operator=(async_msg &&other) - { + async_msg &operator=(async_msg &&other) { *static_cast(this) = std::move(other); msg_type = other.msg_type; worker_ptr = std::move(other.worker_ptr); return *this; } -#else // (_MSC_VER) && _MSC_VER <= 1800 +#else // (_MSC_VER) && _MSC_VER <= 1800 async_msg(async_msg &&) = default; async_msg &operator=(async_msg &&) = default; #endif // construct from log_msg with given type async_msg(async_logger_ptr &&worker, async_msg_type the_type, const details::log_msg &m) - : log_msg_buffer{m} - , msg_type{the_type} - , worker_ptr{std::move(worker)} - {} + : log_msg_buffer{m}, + msg_type{the_type}, + worker_ptr{std::move(worker)} {} async_msg(async_logger_ptr &&worker, async_msg_type the_type) - : log_msg_buffer{} - , msg_type{the_type} - , worker_ptr{std::move(worker)} - {} + : log_msg_buffer{}, + msg_type{the_type}, + worker_ptr{std::move(worker)} {} explicit async_msg(async_msg_type the_type) - : async_msg{nullptr, the_type} - {} + : async_msg{nullptr, the_type} {} }; -class thread_pool -{ +class SPDLOG_API thread_pool { public: using item_type = async_msg; using q_type = details::mpmc_blocking_queue; + thread_pool(size_t q_max_items, + size_t threads_n, + std::function on_thread_start, + std::function on_thread_stop); thread_pool(size_t q_max_items, size_t threads_n, std::function on_thread_start); thread_pool(size_t q_max_items, size_t threads_n); - // message all threads to terminate gracefully join them + // message all threads to terminate gracefully and join them ~thread_pool(); thread_pool(const thread_pool &) = delete; thread_pool &operator=(thread_pool &&) = delete; - void post_log(async_logger_ptr &&worker_ptr, const details::log_msg &msg, async_overflow_policy overflow_policy); + void post_log(async_logger_ptr &&worker_ptr, + const details::log_msg &msg, + async_overflow_policy overflow_policy); void post_flush(async_logger_ptr &&worker_ptr, async_overflow_policy overflow_policy); size_t overrun_counter(); + void reset_overrun_counter(); + size_t discard_counter(); + void reset_discard_counter(); + size_t queue_size(); private: q_type q_; @@ -112,8 +109,8 @@ class thread_pool bool process_next_msg_(); }; -} // namespace details -} // namespace spdlog +} // namespace details +} // namespace spdlog #ifdef SPDLOG_HEADER_ONLY #include "thread_pool-inl.h" diff --git a/Source/ThirdParty/spdlog/details/udp_client-windows.h b/Source/ThirdParty/spdlog/details/udp_client-windows.h new file mode 100644 index 000000000..fd60f280e --- /dev/null +++ b/Source/ThirdParty/spdlog/details/udp_client-windows.h @@ -0,0 +1,98 @@ +// Copyright(c) 2015-present, Gabi Melman & spdlog contributors. +// Distributed under the MIT License (http://opensource.org/licenses/MIT) + +#pragma once + +// Helper RAII over winsock udp client socket. +// Will throw on construction if socket creation failed. + +#include +#include +#include +#include +#include +#include +#include +#include + +#if defined(_MSC_VER) +#pragma comment(lib, "Ws2_32.lib") +#pragma comment(lib, "Mswsock.lib") +#pragma comment(lib, "AdvApi32.lib") +#endif + +namespace spdlog { +namespace details { +class udp_client { + static constexpr int TX_BUFFER_SIZE = 1024 * 10; + SOCKET socket_ = INVALID_SOCKET; + sockaddr_in addr_ = {}; + + static void init_winsock_() { + WSADATA wsaData; + auto rv = ::WSAStartup(MAKEWORD(2, 2), &wsaData); + if (rv != 0) { + throw_winsock_error_("WSAStartup failed", ::WSAGetLastError()); + } + } + + static void throw_winsock_error_(const std::string &msg, int last_error) { + char buf[512]; + ::FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, + last_error, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), buf, + (sizeof(buf) / sizeof(char)), NULL); + + throw_spdlog_ex(fmt_lib::format("udp_sink - {}: {}", msg, buf)); + } + + void cleanup_() { + if (socket_ != INVALID_SOCKET) { + ::closesocket(socket_); + } + socket_ = INVALID_SOCKET; + ::WSACleanup(); + } + +public: + udp_client(const std::string &host, uint16_t port) { + init_winsock_(); + + addr_.sin_family = PF_INET; + addr_.sin_port = htons(port); + addr_.sin_addr.s_addr = INADDR_ANY; + if (InetPtonA(PF_INET, host.c_str(), &addr_.sin_addr.s_addr) != 1) { + int last_error = ::WSAGetLastError(); + ::WSACleanup(); + throw_winsock_error_("error: Invalid address!", last_error); + } + + socket_ = ::socket(PF_INET, SOCK_DGRAM, 0); + if (socket_ == INVALID_SOCKET) { + int last_error = ::WSAGetLastError(); + ::WSACleanup(); + throw_winsock_error_("error: Create Socket failed", last_error); + } + + int option_value = TX_BUFFER_SIZE; + if (::setsockopt(socket_, SOL_SOCKET, SO_SNDBUF, + reinterpret_cast(&option_value), sizeof(option_value)) < 0) { + int last_error = ::WSAGetLastError(); + cleanup_(); + throw_winsock_error_("error: setsockopt(SO_SNDBUF) Failed!", last_error); + } + } + + ~udp_client() { cleanup_(); } + + SOCKET fd() const { return socket_; } + + void send(const char *data, size_t n_bytes) { + socklen_t tolen = sizeof(struct sockaddr); + if (::sendto(socket_, data, static_cast(n_bytes), 0, (struct sockaddr *)&addr_, + tolen) == -1) { + throw_spdlog_ex("sendto(2) failed", errno); + } + } +}; +} // namespace details +} // namespace spdlog diff --git a/Source/ThirdParty/spdlog/details/udp_client.h b/Source/ThirdParty/spdlog/details/udp_client.h new file mode 100644 index 000000000..8d9c71fab --- /dev/null +++ b/Source/ThirdParty/spdlog/details/udp_client.h @@ -0,0 +1,81 @@ +// Copyright(c) 2015-present, Gabi Melman & spdlog contributors. +// Distributed under the MIT License (http://opensource.org/licenses/MIT) + +#pragma once + +// Helper RAII over unix udp client socket. +// Will throw on construction if the socket creation failed. + +#ifdef _WIN32 +#error "include udp_client-windows.h instead" +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +namespace spdlog { +namespace details { + +class udp_client { + static constexpr int TX_BUFFER_SIZE = 1024 * 10; + int socket_ = -1; + struct sockaddr_in sockAddr_; + + void cleanup_() { + if (socket_ != -1) { + ::close(socket_); + socket_ = -1; + } + } + +public: + udp_client(const std::string &host, uint16_t port) { + socket_ = ::socket(PF_INET, SOCK_DGRAM, 0); + if (socket_ < 0) { + throw_spdlog_ex("error: Create Socket Failed!"); + } + + int option_value = TX_BUFFER_SIZE; + if (::setsockopt(socket_, SOL_SOCKET, SO_SNDBUF, + reinterpret_cast(&option_value), sizeof(option_value)) < 0) { + cleanup_(); + throw_spdlog_ex("error: setsockopt(SO_SNDBUF) Failed!"); + } + + sockAddr_.sin_family = AF_INET; + sockAddr_.sin_port = htons(port); + + if (::inet_aton(host.c_str(), &sockAddr_.sin_addr) == 0) { + cleanup_(); + throw_spdlog_ex("error: Invalid address!"); + } + + ::memset(sockAddr_.sin_zero, 0x00, sizeof(sockAddr_.sin_zero)); + } + + ~udp_client() { cleanup_(); } + + int fd() const { return socket_; } + + // Send exactly n_bytes of the given data. + // On error close the connection and throw. + void send(const char *data, size_t n_bytes) { + ssize_t toslen = 0; + socklen_t tolen = sizeof(struct sockaddr); + if ((toslen = ::sendto(socket_, data, n_bytes, 0, (struct sockaddr *)&sockAddr_, tolen)) == + -1) { + throw_spdlog_ex("sendto(2) failed", errno); + } + } +}; +} // namespace details +} // namespace spdlog diff --git a/Source/ThirdParty/spdlog/details/windows_include.h b/Source/ThirdParty/spdlog/details/windows_include.h new file mode 100644 index 000000000..10e04fc4d --- /dev/null +++ b/Source/ThirdParty/spdlog/details/windows_include.h @@ -0,0 +1,11 @@ +#pragma once + +#ifndef NOMINMAX +#define NOMINMAX // prevent windows redefining min/max +#endif + +#ifndef WIN32_LEAN_AND_MEAN +#define WIN32_LEAN_AND_MEAN +#endif + +#include diff --git a/Source/ThirdParty/spdlog/fmt/bin_to_hex.h b/Source/ThirdParty/spdlog/fmt/bin_to_hex.h index de1260613..57ef3020f 100644 --- a/Source/ThirdParty/spdlog/fmt/bin_to_hex.h +++ b/Source/ThirdParty/spdlog/fmt/bin_to_hex.h @@ -5,13 +5,27 @@ #pragma once +#include +#include + +#if defined(__has_include) +#if __has_include() +#include +#endif +#endif + +#if __cpp_lib_span >= 202002L +#include +#endif + // // Support for logging binary data as hex -// format flags: +// format flags, any combination of the following: // {:X} - print in uppercase. // {:s} - don't separate each byte with space. // {:p} - don't print the position on each line start. // {:n} - don't split the output to lines. +// {:a} - show ASCII if :n is not set // // Examples: @@ -20,85 +34,105 @@ // logger->info("Some buffer {}", spdlog::to_hex(v)); // char buf[128]; // logger->info("Some buffer {:X}", spdlog::to_hex(std::begin(buf), std::end(buf))); +// logger->info("Some buffer {:X}", spdlog::to_hex(std::begin(buf), std::end(buf), 16)); namespace spdlog { namespace details { -template -class bytes_range -{ +template +class dump_info { public: - bytes_range(It range_begin, It range_end) - : begin_(range_begin) - , end_(range_end) - {} - - It begin() const - { - return begin_; - } - It end() const - { - return end_; - } + dump_info(It range_begin, It range_end, size_t size_per_line) + : begin_(range_begin), + end_(range_end), + size_per_line_(size_per_line) {} + + // do not use begin() and end() to avoid collision with fmt/ranges + It get_begin() const { return begin_; } + It get_end() const { return end_; } + size_t size_per_line() const { return size_per_line_; } private: It begin_, end_; + size_t size_per_line_; }; -} // namespace details - -// create a bytes_range that wraps the given container -template -inline details::bytes_range to_hex(const Container &container) -{ - static_assert(sizeof(typename Container::value_type) == 1, "sizeof(Container::value_type) != 1"); +} // namespace details + +// create a dump_info that wraps the given container +template +inline details::dump_info to_hex(const Container &container, + size_t size_per_line = 32) { + static_assert(sizeof(typename Container::value_type) == 1, + "sizeof(Container::value_type) != 1"); using Iter = typename Container::const_iterator; - return details::bytes_range(std::begin(container), std::end(container)); + return details::dump_info(std::begin(container), std::end(container), size_per_line); } -// create bytes_range from ranges -template -inline details::bytes_range to_hex(const It range_begin, const It range_end) -{ - return details::bytes_range(range_begin, range_end); +#if __cpp_lib_span >= 202002L + +template +inline details::dump_info::iterator> to_hex( + const std::span &container, size_t size_per_line = 32) { + using Container = std::span; + static_assert(sizeof(typename Container::value_type) == 1, + "sizeof(Container::value_type) != 1"); + using Iter = typename Container::iterator; + return details::dump_info(std::begin(container), std::end(container), size_per_line); } -} // namespace spdlog +#endif -namespace fmt { +// create dump_info from ranges +template +inline details::dump_info to_hex(const It range_begin, + const It range_end, + size_t size_per_line = 32) { + return details::dump_info(range_begin, range_end, size_per_line); +} + +} // namespace spdlog -template -struct formatter> +namespace +#ifdef SPDLOG_USE_STD_FORMAT + std +#else + fmt +#endif { - const std::size_t line_size = 100; - const char delimiter = ' '; +template +struct formatter, char> { + char delimiter = ' '; bool put_newlines = true; bool put_delimiters = true; bool use_uppercase = false; - bool put_positions = true; // position on start of each line + bool put_positions = true; // position on start of each line + bool show_ascii = false; // parse the format string flags - template - auto parse(ParseContext &ctx) -> decltype(ctx.begin()) - { + template + SPDLOG_CONSTEXPR_FUNC auto parse(ParseContext &ctx) -> decltype(ctx.begin()) { auto it = ctx.begin(); - while (*it && *it != '}') - { - switch (*it) - { - case 'X': - use_uppercase = true; - break; - case 's': - put_delimiters = false; - break; - case 'p': - put_positions = false; - break; - case 'n': - put_newlines = false; - break; + while (it != ctx.end() && *it != '}') { + switch (*it) { + case 'X': + use_uppercase = true; + break; + case 's': + put_delimiters = false; + break; + case 'p': + put_positions = false; + break; + case 'n': + put_newlines = false; + show_ascii = false; + break; + case 'a': + if (put_newlines) { + show_ascii = true; + } + break; } ++it; @@ -107,69 +141,84 @@ struct formatter> } // format the given bytes range as hex - template - auto format(const spdlog::details::bytes_range &the_range, FormatContext &ctx) -> decltype(ctx.out()) - { + template + auto format(const spdlog::details::dump_info &the_range, + FormatContext &ctx) const -> decltype(ctx.out()) { SPDLOG_CONSTEXPR const char *hex_upper = "0123456789ABCDEF"; SPDLOG_CONSTEXPR const char *hex_lower = "0123456789abcdef"; const char *hex_chars = use_uppercase ? hex_upper : hex_lower; - std::size_t pos = 0; - std::size_t column = line_size; -#if FMT_VERSION < 60000 +#if !defined(SPDLOG_USE_STD_FORMAT) && FMT_VERSION < 60000 auto inserter = ctx.begin(); #else auto inserter = ctx.out(); #endif - for (auto &item : the_range) - { - auto ch = static_cast(item); - pos++; + int size_per_line = static_cast(the_range.size_per_line()); + auto start_of_line = the_range.get_begin(); + for (auto i = the_range.get_begin(); i != the_range.get_end(); i++) { + auto ch = static_cast(*i); + + if (put_newlines && + (i == the_range.get_begin() || i - start_of_line >= size_per_line)) { + if (show_ascii && i != the_range.get_begin()) { + *inserter++ = delimiter; + *inserter++ = delimiter; + for (auto j = start_of_line; j < i; j++) { + auto pc = static_cast(*j); + *inserter++ = std::isprint(pc) ? static_cast(*j) : '.'; + } + } - if (put_newlines && column >= line_size) - { - column = put_newline(inserter, pos); + put_newline(inserter, static_cast(i - the_range.get_begin())); // put first byte without delimiter in front of it *inserter++ = hex_chars[(ch >> 4) & 0x0f]; *inserter++ = hex_chars[ch & 0x0f]; - column += 2; + start_of_line = i; continue; } - if (put_delimiters) - { + if (put_delimiters && i != the_range.get_begin()) { *inserter++ = delimiter; - ++column; } *inserter++ = hex_chars[(ch >> 4) & 0x0f]; *inserter++ = hex_chars[ch & 0x0f]; - column += 2; + } + if (show_ascii) // add ascii to last line + { + if (the_range.get_end() - the_range.get_begin() > size_per_line) { + auto blank_num = size_per_line - (the_range.get_end() - start_of_line); + while (blank_num-- > 0) { + *inserter++ = delimiter; + *inserter++ = delimiter; + if (put_delimiters) { + *inserter++ = delimiter; + } + } + } + *inserter++ = delimiter; + *inserter++ = delimiter; + for (auto j = start_of_line; j != the_range.get_end(); j++) { + auto pc = static_cast(*j); + *inserter++ = std::isprint(pc) ? static_cast(*j) : '.'; + } } return inserter; } // put newline(and position header) - // return the next column - template - std::size_t put_newline(It inserter, std::size_t pos) - { + template + void put_newline(It inserter, std::size_t pos) const { #ifdef _WIN32 *inserter++ = '\r'; #endif *inserter++ = '\n'; - if (put_positions) - { - fmt::format_to(inserter, "{:<04X}: ", pos - 1); - return 7; - } - else - { - return 1; + if (put_positions) { + spdlog::fmt_lib::format_to(inserter, SPDLOG_FMT_STRING("{:04X}: "), pos); } } }; -} // namespace fmt +} // namespace std diff --git a/Source/ThirdParty/spdlog/fmt/bundled/args.h b/Source/ThirdParty/spdlog/fmt/bundled/args.h new file mode 100644 index 000000000..5e5f40f9e --- /dev/null +++ b/Source/ThirdParty/spdlog/fmt/bundled/args.h @@ -0,0 +1,220 @@ +// Formatting library for C++ - dynamic argument lists +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#ifndef FMT_ARGS_H_ +#define FMT_ARGS_H_ + +#ifndef FMT_MODULE +# include // std::reference_wrapper +# include // std::unique_ptr +# include +#endif + +#include "format.h" // std_string_view + +FMT_BEGIN_NAMESPACE +namespace detail { + +template struct is_reference_wrapper : std::false_type {}; +template +struct is_reference_wrapper> : std::true_type {}; + +template auto unwrap(const T& v) -> const T& { return v; } +template +auto unwrap(const std::reference_wrapper& v) -> const T& { + return static_cast(v); +} + +// node is defined outside dynamic_arg_list to workaround a C2504 bug in MSVC +// 2022 (v17.10.0). +// +// Workaround for clang's -Wweak-vtables. Unlike for regular classes, for +// templates it doesn't complain about inability to deduce single translation +// unit for placing vtable. So node is made a fake template. +template struct node { + virtual ~node() = default; + std::unique_ptr> next; +}; + +class dynamic_arg_list { + template struct typed_node : node<> { + T value; + + template + FMT_CONSTEXPR typed_node(const Arg& arg) : value(arg) {} + + template + FMT_CONSTEXPR typed_node(const basic_string_view& arg) + : value(arg.data(), arg.size()) {} + }; + + std::unique_ptr> head_; + + public: + template auto push(const Arg& arg) -> const T& { + auto new_node = std::unique_ptr>(new typed_node(arg)); + auto& value = new_node->value; + new_node->next = std::move(head_); + head_ = std::move(new_node); + return value; + } +}; +} // namespace detail + +/** + * A dynamic list of formatting arguments with storage. + * + * It can be implicitly converted into `fmt::basic_format_args` for passing + * into type-erased formatting functions such as `fmt::vformat`. + */ +FMT_EXPORT template class dynamic_format_arg_store { + private: + using char_type = typename Context::char_type; + + template struct need_copy { + static constexpr detail::type mapped_type = + detail::mapped_type_constant::value; + + enum { + value = !(detail::is_reference_wrapper::value || + std::is_same>::value || + std::is_same>::value || + (mapped_type != detail::type::cstring_type && + mapped_type != detail::type::string_type && + mapped_type != detail::type::custom_type)) + }; + }; + + template + using stored_t = conditional_t< + std::is_convertible>::value && + !detail::is_reference_wrapper::value, + std::basic_string, T>; + + // Storage of basic_format_arg must be contiguous. + std::vector> data_; + std::vector> named_info_; + + // Storage of arguments not fitting into basic_format_arg must grow + // without relocation because items in data_ refer to it. + detail::dynamic_arg_list dynamic_args_; + + friend class basic_format_args; + + auto data() const -> const basic_format_arg* { + return named_info_.empty() ? data_.data() : data_.data() + 1; + } + + template void emplace_arg(const T& arg) { + data_.emplace_back(arg); + } + + template + void emplace_arg(const detail::named_arg& arg) { + if (named_info_.empty()) + data_.insert(data_.begin(), basic_format_arg(nullptr, 0)); + data_.emplace_back(detail::unwrap(arg.value)); + auto pop_one = [](std::vector>* data) { + data->pop_back(); + }; + std::unique_ptr>, decltype(pop_one)> + guard{&data_, pop_one}; + named_info_.push_back({arg.name, static_cast(data_.size() - 2u)}); + data_[0] = {named_info_.data(), named_info_.size()}; + guard.release(); + } + + public: + constexpr dynamic_format_arg_store() = default; + + operator basic_format_args() const { + return basic_format_args(data(), static_cast(data_.size()), + !named_info_.empty()); + } + + /** + * Adds an argument into the dynamic store for later passing to a formatting + * function. + * + * Note that custom types and string types (but not string views) are copied + * into the store dynamically allocating memory if necessary. + * + * **Example**: + * + * fmt::dynamic_format_arg_store store; + * store.push_back(42); + * store.push_back("abc"); + * store.push_back(1.5f); + * std::string result = fmt::vformat("{} and {} and {}", store); + */ + template void push_back(const T& arg) { + if (detail::const_check(need_copy::value)) + emplace_arg(dynamic_args_.push>(arg)); + else + emplace_arg(detail::unwrap(arg)); + } + + /** + * Adds a reference to the argument into the dynamic store for later passing + * to a formatting function. + * + * **Example**: + * + * fmt::dynamic_format_arg_store store; + * char band[] = "Rolling Stones"; + * store.push_back(std::cref(band)); + * band[9] = 'c'; // Changing str affects the output. + * std::string result = fmt::vformat("{}", store); + * // result == "Rolling Scones" + */ + template void push_back(std::reference_wrapper arg) { + static_assert( + need_copy::value, + "objects of built-in types and string views are always copied"); + emplace_arg(arg.get()); + } + + /** + * Adds named argument into the dynamic store for later passing to a + * formatting function. `std::reference_wrapper` is supported to avoid + * copying of the argument. The name is always copied into the store. + */ + template + void push_back(const detail::named_arg& arg) { + const char_type* arg_name = + dynamic_args_.push>(arg.name).c_str(); + if (detail::const_check(need_copy::value)) { + emplace_arg( + fmt::arg(arg_name, dynamic_args_.push>(arg.value))); + } else { + emplace_arg(fmt::arg(arg_name, arg.value)); + } + } + + /// Erase all elements from the store. + void clear() { + data_.clear(); + named_info_.clear(); + dynamic_args_ = {}; + } + + /// Reserves space to store at least `new_cap` arguments including + /// `new_cap_named` named arguments. + void reserve(size_t new_cap, size_t new_cap_named) { + FMT_ASSERT(new_cap >= new_cap_named, + "set of arguments includes set of named arguments"); + data_.reserve(new_cap); + named_info_.reserve(new_cap_named); + } + + /// Returns the number of elements in the store. + auto size() const noexcept -> size_t { return data_.size(); } +}; + +FMT_END_NAMESPACE + +#endif // FMT_ARGS_H_ diff --git a/Source/ThirdParty/spdlog/fmt/bundled/base.h b/Source/ThirdParty/spdlog/fmt/bundled/base.h new file mode 100644 index 000000000..620456b41 --- /dev/null +++ b/Source/ThirdParty/spdlog/fmt/bundled/base.h @@ -0,0 +1,3010 @@ +// Formatting library for C++ - the base API for char/UTF-8 +// +// Copyright (c) 2012 - present, Victor Zverovich +// All rights reserved. +// +// For the license information refer to format.h. + +#ifndef FMT_BASE_H_ +#define FMT_BASE_H_ + +#if defined(FMT_IMPORT_STD) && !defined(FMT_MODULE) +# define FMT_MODULE +#endif + +#ifndef FMT_MODULE +# include // CHAR_BIT +# include // FILE +# include // memcmp + +# include // std::enable_if +#endif + +// The fmt library version in the form major * 10000 + minor * 100 + patch. +#define FMT_VERSION 120100 + +// Detect compiler versions. +#if defined(__clang__) && !defined(__ibmxl__) +# define FMT_CLANG_VERSION (__clang_major__ * 100 + __clang_minor__) +#else +# define FMT_CLANG_VERSION 0 +#endif +#if defined(__GNUC__) && !defined(__clang__) && !defined(__INTEL_COMPILER) +# define FMT_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__) +#else +# define FMT_GCC_VERSION 0 +#endif +#if defined(__ICL) +# define FMT_ICC_VERSION __ICL +#elif defined(__INTEL_COMPILER) +# define FMT_ICC_VERSION __INTEL_COMPILER +#else +# define FMT_ICC_VERSION 0 +#endif +#if defined(_MSC_VER) +# define FMT_MSC_VERSION _MSC_VER +#else +# define FMT_MSC_VERSION 0 +#endif + +// Detect standard library versions. +#ifdef _GLIBCXX_RELEASE +# define FMT_GLIBCXX_RELEASE _GLIBCXX_RELEASE +#else +# define FMT_GLIBCXX_RELEASE 0 +#endif +#ifdef _LIBCPP_VERSION +# define FMT_LIBCPP_VERSION _LIBCPP_VERSION +#else +# define FMT_LIBCPP_VERSION 0 +#endif + +#ifdef _MSVC_LANG +# define FMT_CPLUSPLUS _MSVC_LANG +#else +# define FMT_CPLUSPLUS __cplusplus +#endif + +// Detect __has_*. +#ifdef __has_feature +# define FMT_HAS_FEATURE(x) __has_feature(x) +#else +# define FMT_HAS_FEATURE(x) 0 +#endif +#ifdef __has_include +# define FMT_HAS_INCLUDE(x) __has_include(x) +#else +# define FMT_HAS_INCLUDE(x) 0 +#endif +#ifdef __has_builtin +# define FMT_HAS_BUILTIN(x) __has_builtin(x) +#else +# define FMT_HAS_BUILTIN(x) 0 +#endif +#ifdef __has_cpp_attribute +# define FMT_HAS_CPP_ATTRIBUTE(x) __has_cpp_attribute(x) +#else +# define FMT_HAS_CPP_ATTRIBUTE(x) 0 +#endif + +#define FMT_HAS_CPP14_ATTRIBUTE(attribute) \ + (FMT_CPLUSPLUS >= 201402L && FMT_HAS_CPP_ATTRIBUTE(attribute)) + +#define FMT_HAS_CPP17_ATTRIBUTE(attribute) \ + (FMT_CPLUSPLUS >= 201703L && FMT_HAS_CPP_ATTRIBUTE(attribute)) + +// Detect C++14 relaxed constexpr. +#ifdef FMT_USE_CONSTEXPR +// Use the provided definition. +#elif FMT_GCC_VERSION >= 702 && FMT_CPLUSPLUS >= 201402L +// GCC only allows constexpr member functions in non-literal types since 7.2: +// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66297. +# define FMT_USE_CONSTEXPR 1 +#elif FMT_ICC_VERSION +# define FMT_USE_CONSTEXPR 0 // https://github.com/fmtlib/fmt/issues/1628 +#elif FMT_HAS_FEATURE(cxx_relaxed_constexpr) || FMT_MSC_VERSION >= 1912 +# define FMT_USE_CONSTEXPR 1 +#else +# define FMT_USE_CONSTEXPR 0 +#endif +#if FMT_USE_CONSTEXPR +# define FMT_CONSTEXPR constexpr +#else +# define FMT_CONSTEXPR +#endif + +// Detect consteval, C++20 constexpr extensions and std::is_constant_evaluated. +#ifdef FMT_USE_CONSTEVAL +// Use the provided definition. +#elif !defined(__cpp_lib_is_constant_evaluated) +# define FMT_USE_CONSTEVAL 0 +#elif FMT_CPLUSPLUS < 201709L +# define FMT_USE_CONSTEVAL 0 +#elif FMT_GLIBCXX_RELEASE && FMT_GLIBCXX_RELEASE < 10 +# define FMT_USE_CONSTEVAL 0 +#elif FMT_LIBCPP_VERSION && FMT_LIBCPP_VERSION < 10000 +# define FMT_USE_CONSTEVAL 0 +#elif defined(__apple_build_version__) && __apple_build_version__ < 14000029L +# define FMT_USE_CONSTEVAL 0 // consteval is broken in Apple clang < 14. +#elif FMT_MSC_VERSION && FMT_MSC_VERSION < 1929 +# define FMT_USE_CONSTEVAL 0 // consteval is broken in MSVC VS2019 < 16.10. +#elif defined(__cpp_consteval) +# define FMT_USE_CONSTEVAL 1 +#elif FMT_GCC_VERSION >= 1002 || FMT_CLANG_VERSION >= 1101 +# define FMT_USE_CONSTEVAL 1 +#else +# define FMT_USE_CONSTEVAL 0 +#endif +#if FMT_USE_CONSTEVAL +# define FMT_CONSTEVAL consteval +# define FMT_CONSTEXPR20 constexpr +#else +# define FMT_CONSTEVAL +# define FMT_CONSTEXPR20 +#endif + +// Check if exceptions are disabled. +#ifdef FMT_USE_EXCEPTIONS +// Use the provided definition. +#elif defined(__GNUC__) && !defined(__EXCEPTIONS) +# define FMT_USE_EXCEPTIONS 0 +#elif defined(__clang__) && !defined(__cpp_exceptions) +# define FMT_USE_EXCEPTIONS 0 +#elif FMT_MSC_VERSION && !_HAS_EXCEPTIONS +# define FMT_USE_EXCEPTIONS 0 +#else +# define FMT_USE_EXCEPTIONS 1 +#endif +#if FMT_USE_EXCEPTIONS +# define FMT_TRY try +# define FMT_CATCH(x) catch (x) +#else +# define FMT_TRY if (true) +# define FMT_CATCH(x) if (false) +#endif + +#ifdef FMT_NO_UNIQUE_ADDRESS +// Use the provided definition. +#elif FMT_CPLUSPLUS < 202002L +// Not supported. +#elif FMT_HAS_CPP_ATTRIBUTE(no_unique_address) +# define FMT_NO_UNIQUE_ADDRESS [[no_unique_address]] +// VS2019 v16.10 and later except clang-cl (https://reviews.llvm.org/D110485). +#elif FMT_MSC_VERSION >= 1929 && !FMT_CLANG_VERSION +# define FMT_NO_UNIQUE_ADDRESS [[msvc::no_unique_address]] +#endif +#ifndef FMT_NO_UNIQUE_ADDRESS +# define FMT_NO_UNIQUE_ADDRESS +#endif + +#if FMT_HAS_CPP17_ATTRIBUTE(fallthrough) +# define FMT_FALLTHROUGH [[fallthrough]] +#elif defined(__clang__) +# define FMT_FALLTHROUGH [[clang::fallthrough]] +#elif FMT_GCC_VERSION >= 700 && \ + (!defined(__EDG_VERSION__) || __EDG_VERSION__ >= 520) +# define FMT_FALLTHROUGH [[gnu::fallthrough]] +#else +# define FMT_FALLTHROUGH +#endif + +// Disable [[noreturn]] on MSVC/NVCC because of bogus unreachable code warnings. +#if FMT_HAS_CPP_ATTRIBUTE(noreturn) && !FMT_MSC_VERSION && !defined(__NVCC__) +# define FMT_NORETURN [[noreturn]] +#else +# define FMT_NORETURN +#endif + +#ifdef FMT_NODISCARD +// Use the provided definition. +#elif FMT_HAS_CPP17_ATTRIBUTE(nodiscard) +# define FMT_NODISCARD [[nodiscard]] +#else +# define FMT_NODISCARD +#endif + +#if FMT_GCC_VERSION || FMT_CLANG_VERSION +# define FMT_VISIBILITY(value) __attribute__((visibility(value))) +#else +# define FMT_VISIBILITY(value) +#endif + +// Detect pragmas. +#define FMT_PRAGMA_IMPL(x) _Pragma(#x) +#if FMT_GCC_VERSION >= 504 && !defined(__NVCOMPILER) +// Workaround a _Pragma bug https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59884 +// and an nvhpc warning: https://github.com/fmtlib/fmt/pull/2582. +# define FMT_PRAGMA_GCC(x) FMT_PRAGMA_IMPL(GCC x) +#else +# define FMT_PRAGMA_GCC(x) +#endif +#if FMT_CLANG_VERSION +# define FMT_PRAGMA_CLANG(x) FMT_PRAGMA_IMPL(clang x) +#else +# define FMT_PRAGMA_CLANG(x) +#endif +#if FMT_MSC_VERSION +# define FMT_MSC_WARNING(...) __pragma(warning(__VA_ARGS__)) +#else +# define FMT_MSC_WARNING(...) +#endif + +// Enable minimal optimizations for more compact code in debug mode. +FMT_PRAGMA_GCC(push_options) +#if !defined(__OPTIMIZE__) && !defined(__CUDACC__) && !defined(FMT_MODULE) +FMT_PRAGMA_GCC(optimize("Og")) +# define FMT_GCC_OPTIMIZED +#endif +FMT_PRAGMA_CLANG(diagnostic push) +FMT_PRAGMA_GCC(diagnostic push) + +#ifdef FMT_ALWAYS_INLINE +// Use the provided definition. +#elif FMT_GCC_VERSION || FMT_CLANG_VERSION +# define FMT_ALWAYS_INLINE inline __attribute__((always_inline)) +#else +# define FMT_ALWAYS_INLINE inline +#endif +// A version of FMT_ALWAYS_INLINE to prevent code bloat in debug mode. +#if defined(NDEBUG) || defined(FMT_GCC_OPTIMIZED) +# define FMT_INLINE FMT_ALWAYS_INLINE +#else +# define FMT_INLINE inline +#endif + +#ifndef FMT_BEGIN_NAMESPACE +# define FMT_BEGIN_NAMESPACE \ + namespace fmt { \ + inline namespace v12 { +# define FMT_END_NAMESPACE \ + } \ + } +#endif + +#ifndef FMT_EXPORT +# define FMT_EXPORT +# define FMT_BEGIN_EXPORT +# define FMT_END_EXPORT +#endif + +#ifdef _WIN32 +# define FMT_WIN32 1 +#else +# define FMT_WIN32 0 +#endif + +#if !defined(FMT_HEADER_ONLY) && FMT_WIN32 +# if defined(FMT_LIB_EXPORT) +# define FMT_API __declspec(dllexport) +# elif defined(FMT_SHARED) +# define FMT_API __declspec(dllimport) +# endif +#elif defined(FMT_LIB_EXPORT) || defined(FMT_SHARED) +# define FMT_API FMT_VISIBILITY("default") +#endif +#ifndef FMT_API +# define FMT_API +#endif + +#ifndef FMT_OPTIMIZE_SIZE +# define FMT_OPTIMIZE_SIZE 0 +#endif + +// FMT_BUILTIN_TYPE=0 may result in smaller library size at the cost of higher +// per-call binary size by passing built-in types through the extension API. +#ifndef FMT_BUILTIN_TYPES +# define FMT_BUILTIN_TYPES 1 +#endif + +#define FMT_APPLY_VARIADIC(expr) \ + using unused = int[]; \ + (void)unused { 0, (expr, 0)... } + +FMT_BEGIN_NAMESPACE + +// Implementations of enable_if_t and other metafunctions for older systems. +template +using enable_if_t = typename std::enable_if::type; +template +using conditional_t = typename std::conditional::type; +template using bool_constant = std::integral_constant; +template +using remove_reference_t = typename std::remove_reference::type; +template +using remove_const_t = typename std::remove_const::type; +template +using remove_cvref_t = typename std::remove_cv>::type; +template +using make_unsigned_t = typename std::make_unsigned::type; +template +using underlying_t = typename std::underlying_type::type; +template using decay_t = typename std::decay::type; +using nullptr_t = decltype(nullptr); + +#if (FMT_GCC_VERSION && FMT_GCC_VERSION < 500) || FMT_MSC_VERSION +// A workaround for gcc 4.9 & MSVC v141 to make void_t work in a SFINAE context. +template struct void_t_impl { + using type = void; +}; +template using void_t = typename void_t_impl::type; +#else +template using void_t = void; +#endif + +struct monostate { + constexpr monostate() {} +}; + +// An enable_if helper to be used in template parameters which results in much +// shorter symbols: https://godbolt.org/z/sWw4vP. Extra parentheses are needed +// to workaround a bug in MSVC 2019 (see #1140 and #1186). +#ifdef FMT_DOC +# define FMT_ENABLE_IF(...) +#else +# define FMT_ENABLE_IF(...) fmt::enable_if_t<(__VA_ARGS__), int> = 0 +#endif + +template constexpr auto min_of(T a, T b) -> T { + return a < b ? a : b; +} +template constexpr auto max_of(T a, T b) -> T { + return a > b ? a : b; +} + +FMT_NORETURN FMT_API void assert_fail(const char* file, int line, + const char* message); + +namespace detail { +// Suppresses "unused variable" warnings with the method described in +// https://herbsutter.com/2009/10/18/mailbag-shutting-up-compiler-warnings/. +// (void)var does not work on many Intel compilers. +template FMT_CONSTEXPR void ignore_unused(const T&...) {} + +constexpr auto is_constant_evaluated(bool default_value = false) noexcept + -> bool { +// Workaround for incompatibility between clang 14 and libstdc++ consteval-based +// std::is_constant_evaluated: https://github.com/fmtlib/fmt/issues/3247. +#if FMT_CPLUSPLUS >= 202002L && FMT_GLIBCXX_RELEASE >= 12 && \ + (FMT_CLANG_VERSION >= 1400 && FMT_CLANG_VERSION < 1500) + ignore_unused(default_value); + return __builtin_is_constant_evaluated(); +#elif defined(__cpp_lib_is_constant_evaluated) + ignore_unused(default_value); + return std::is_constant_evaluated(); +#else + return default_value; +#endif +} + +// Suppresses "conditional expression is constant" warnings. +template FMT_ALWAYS_INLINE constexpr auto const_check(T val) -> T { + return val; +} + +FMT_NORETURN FMT_API void assert_fail(const char* file, int line, + const char* message); + +#if defined(FMT_ASSERT) +// Use the provided definition. +#elif defined(NDEBUG) +// FMT_ASSERT is not empty to avoid -Wempty-body. +# define FMT_ASSERT(condition, message) \ + fmt::detail::ignore_unused((condition), (message)) +#else +# define FMT_ASSERT(condition, message) \ + ((condition) /* void() fails with -Winvalid-constexpr on clang 4.0.1 */ \ + ? (void)0 \ + : ::fmt::assert_fail(__FILE__, __LINE__, (message))) +#endif + +#ifdef FMT_USE_INT128 +// Use the provided definition. +#elif defined(__SIZEOF_INT128__) && !defined(__NVCC__) && \ + !(FMT_CLANG_VERSION && FMT_MSC_VERSION) +# define FMT_USE_INT128 1 +using int128_opt = __int128_t; // An optional native 128-bit integer. +using uint128_opt = __uint128_t; +inline auto map(int128_opt x) -> int128_opt { return x; } +inline auto map(uint128_opt x) -> uint128_opt { return x; } +#else +# define FMT_USE_INT128 0 +#endif +#if !FMT_USE_INT128 +enum class int128_opt {}; +enum class uint128_opt {}; +// Reduce template instantiations. +inline auto map(int128_opt) -> monostate { return {}; } +inline auto map(uint128_opt) -> monostate { return {}; } +#endif + +#ifdef FMT_USE_BITINT +// Use the provided definition. +#elif FMT_CLANG_VERSION >= 1500 && !defined(__CUDACC__) +# define FMT_USE_BITINT 1 +#else +# define FMT_USE_BITINT 0 +#endif + +#if FMT_USE_BITINT +FMT_PRAGMA_CLANG(diagnostic ignored "-Wbit-int-extension") +template using bitint = _BitInt(N); +template using ubitint = unsigned _BitInt(N); +#else +template struct bitint {}; +template struct ubitint {}; +#endif // FMT_USE_BITINT + +// Casts a nonnegative integer to unsigned. +template +FMT_CONSTEXPR auto to_unsigned(Int value) -> make_unsigned_t { + FMT_ASSERT(std::is_unsigned::value || value >= 0, "negative value"); + return static_cast>(value); +} + +template +using unsigned_char = conditional_t; + +// A heuristic to detect std::string and std::[experimental::]string_view. +// It is mainly used to avoid dependency on <[experimental/]string_view>. +template +struct is_std_string_like : std::false_type {}; +template +struct is_std_string_like().find_first_of( + typename T::value_type(), 0))>> + : std::is_convertible().data()), + const typename T::value_type*> {}; + +// Check if the literal encoding is UTF-8. +enum { is_utf8_enabled = "\u00A7"[1] == '\xA7' }; +enum { use_utf8 = !FMT_WIN32 || is_utf8_enabled }; + +#ifndef FMT_UNICODE +# define FMT_UNICODE 1 +#endif + +static_assert(!FMT_UNICODE || use_utf8, + "Unicode support requires compiling with /utf-8"); + +template constexpr auto narrow(T*) -> char* { return nullptr; } +constexpr FMT_ALWAYS_INLINE auto narrow(const char* s) -> const char* { + return s; +} + +template +FMT_CONSTEXPR auto compare(const Char* s1, const Char* s2, size_t n) -> int { + if (!is_constant_evaluated() && sizeof(Char) == 1) return memcmp(s1, s2, n); + for (; n != 0; ++s1, ++s2, --n) { + if (*s1 < *s2) return -1; + if (*s1 > *s2) return 1; + } + return 0; +} + +namespace adl { +using namespace std; + +template +auto invoke_back_inserter() + -> decltype(back_inserter(std::declval())); +} // namespace adl + +template +struct is_back_insert_iterator : std::false_type {}; + +template +struct is_back_insert_iterator< + It, bool_constant()), + It>::value>> : std::true_type {}; + +// Extracts a reference to the container from *insert_iterator. +template +inline FMT_CONSTEXPR20 auto get_container(OutputIt it) -> + typename OutputIt::container_type& { + struct accessor : OutputIt { + FMT_CONSTEXPR20 accessor(OutputIt base) : OutputIt(base) {} + using OutputIt::container; + }; + return *accessor(it).container; +} +} // namespace detail + +// Parsing-related public API and forward declarations. +FMT_BEGIN_EXPORT + +/** + * An implementation of `std::basic_string_view` for pre-C++17. It provides a + * subset of the API. `fmt::basic_string_view` is used for format strings even + * if `std::basic_string_view` is available to prevent issues when a library is + * compiled with a different `-std` option than the client code (which is not + * recommended). + */ +template class basic_string_view { + private: + const Char* data_; + size_t size_; + + public: + using value_type = Char; + using iterator = const Char*; + + constexpr basic_string_view() noexcept : data_(nullptr), size_(0) {} + + /// Constructs a string view object from a C string and a size. + constexpr basic_string_view(const Char* s, size_t count) noexcept + : data_(s), size_(count) {} + + constexpr basic_string_view(nullptr_t) = delete; + + /// Constructs a string view object from a C string. +#if FMT_GCC_VERSION + FMT_ALWAYS_INLINE +#endif + FMT_CONSTEXPR20 basic_string_view(const Char* s) : data_(s) { +#if FMT_HAS_BUILTIN(__builtin_strlen) || FMT_GCC_VERSION || FMT_CLANG_VERSION + if (std::is_same::value && !detail::is_constant_evaluated()) { + size_ = __builtin_strlen(detail::narrow(s)); // strlen is not constexpr. + return; + } +#endif + size_t len = 0; + while (*s++) ++len; + size_ = len; + } + + /// Constructs a string view from a `std::basic_string` or a + /// `std::basic_string_view` object. + template ::value&& std::is_same< + typename S::value_type, Char>::value)> + FMT_CONSTEXPR basic_string_view(const S& s) noexcept + : data_(s.data()), size_(s.size()) {} + + /// Returns a pointer to the string data. + constexpr auto data() const noexcept -> const Char* { return data_; } + + /// Returns the string size. + constexpr auto size() const noexcept -> size_t { return size_; } + + constexpr auto begin() const noexcept -> iterator { return data_; } + constexpr auto end() const noexcept -> iterator { return data_ + size_; } + + constexpr auto operator[](size_t pos) const noexcept -> const Char& { + return data_[pos]; + } + + FMT_CONSTEXPR void remove_prefix(size_t n) noexcept { + data_ += n; + size_ -= n; + } + + FMT_CONSTEXPR auto starts_with(basic_string_view sv) const noexcept + -> bool { + return size_ >= sv.size_ && detail::compare(data_, sv.data_, sv.size_) == 0; + } + FMT_CONSTEXPR auto starts_with(Char c) const noexcept -> bool { + return size_ >= 1 && *data_ == c; + } + FMT_CONSTEXPR auto starts_with(const Char* s) const -> bool { + return starts_with(basic_string_view(s)); + } + + FMT_CONSTEXPR auto compare(basic_string_view other) const -> int { + int result = + detail::compare(data_, other.data_, min_of(size_, other.size_)); + if (result != 0) return result; + return size_ == other.size_ ? 0 : (size_ < other.size_ ? -1 : 1); + } + + FMT_CONSTEXPR friend auto operator==(basic_string_view lhs, + basic_string_view rhs) -> bool { + return lhs.compare(rhs) == 0; + } + friend auto operator!=(basic_string_view lhs, basic_string_view rhs) -> bool { + return lhs.compare(rhs) != 0; + } + friend auto operator<(basic_string_view lhs, basic_string_view rhs) -> bool { + return lhs.compare(rhs) < 0; + } + friend auto operator<=(basic_string_view lhs, basic_string_view rhs) -> bool { + return lhs.compare(rhs) <= 0; + } + friend auto operator>(basic_string_view lhs, basic_string_view rhs) -> bool { + return lhs.compare(rhs) > 0; + } + friend auto operator>=(basic_string_view lhs, basic_string_view rhs) -> bool { + return lhs.compare(rhs) >= 0; + } +}; + +using string_view = basic_string_view; + +template class basic_appender; +using appender = basic_appender; + +// Checks whether T is a container with contiguous storage. +template struct is_contiguous : std::false_type {}; + +class context; +template class generic_context; +template class parse_context; + +// Longer aliases for C++20 compatibility. +template using basic_format_parse_context = parse_context; +using format_parse_context = parse_context; +template +using basic_format_context = + conditional_t::value, context, + generic_context>; +using format_context = context; + +template +using buffered_context = + conditional_t::value, context, + generic_context, Char>>; + +template class basic_format_arg; +template class basic_format_args; + +// A separate type would result in shorter symbols but break ABI compatibility +// between clang and gcc on ARM (#1919). +using format_args = basic_format_args; + +// A formatter for objects of type T. +template +struct formatter { + // A deleted default constructor indicates a disabled formatter. + formatter() = delete; +}; + +/// Reports a format error at compile time or, via a `format_error` exception, +/// at runtime. +// This function is intentionally not constexpr to give a compile-time error. +FMT_NORETURN FMT_API void report_error(const char* message); + +enum class presentation_type : unsigned char { + // Common specifiers: + none = 0, + debug = 1, // '?' + string = 2, // 's' (string, bool) + + // Integral, bool and character specifiers: + dec = 3, // 'd' + hex, // 'x' or 'X' + oct, // 'o' + bin, // 'b' or 'B' + chr, // 'c' + + // String and pointer specifiers: + pointer = 3, // 'p' + + // Floating-point specifiers: + exp = 1, // 'e' or 'E' (1 since there is no FP debug presentation) + fixed, // 'f' or 'F' + general, // 'g' or 'G' + hexfloat // 'a' or 'A' +}; + +enum class align { none, left, right, center, numeric }; +enum class sign { none, minus, plus, space }; +enum class arg_id_kind { none, index, name }; + +// Basic format specifiers for built-in and string types. +class basic_specs { + private: + // Data is arranged as follows: + // + // 0 1 2 3 + // 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + // +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + // |type |align| w | p | s |u|#|L| f | unused | + // +-----+-----+---+---+---+-+-+-+-----+---------------------------+ + // + // w - dynamic width info + // p - dynamic precision info + // s - sign + // u - uppercase (e.g. 'X' for 'x') + // # - alternate form ('#') + // L - localized + // f - fill size + // + // Bitfields are not used because of compiler bugs such as gcc bug 61414. + enum : unsigned { + type_mask = 0x00007, + align_mask = 0x00038, + width_mask = 0x000C0, + precision_mask = 0x00300, + sign_mask = 0x00C00, + uppercase_mask = 0x01000, + alternate_mask = 0x02000, + localized_mask = 0x04000, + fill_size_mask = 0x38000, + + align_shift = 3, + width_shift = 6, + precision_shift = 8, + sign_shift = 10, + fill_size_shift = 15, + + max_fill_size = 4 + }; + + unsigned data_ = 1 << fill_size_shift; + static_assert(sizeof(basic_specs::data_) * CHAR_BIT >= 18, ""); + + // Character (code unit) type is erased to prevent template bloat. + char fill_data_[max_fill_size] = {' '}; + + FMT_CONSTEXPR void set_fill_size(size_t size) { + data_ = (data_ & ~fill_size_mask) | + (static_cast(size) << fill_size_shift); + } + + public: + constexpr auto type() const -> presentation_type { + return static_cast(data_ & type_mask); + } + FMT_CONSTEXPR void set_type(presentation_type t) { + data_ = (data_ & ~type_mask) | static_cast(t); + } + + constexpr auto align() const -> align { + return static_cast((data_ & align_mask) >> align_shift); + } + FMT_CONSTEXPR void set_align(fmt::align a) { + data_ = (data_ & ~align_mask) | (static_cast(a) << align_shift); + } + + constexpr auto dynamic_width() const -> arg_id_kind { + return static_cast((data_ & width_mask) >> width_shift); + } + FMT_CONSTEXPR void set_dynamic_width(arg_id_kind w) { + data_ = (data_ & ~width_mask) | (static_cast(w) << width_shift); + } + + FMT_CONSTEXPR auto dynamic_precision() const -> arg_id_kind { + return static_cast((data_ & precision_mask) >> + precision_shift); + } + FMT_CONSTEXPR void set_dynamic_precision(arg_id_kind p) { + data_ = (data_ & ~precision_mask) | + (static_cast(p) << precision_shift); + } + + constexpr auto dynamic() const -> bool { + return (data_ & (width_mask | precision_mask)) != 0; + } + + constexpr auto sign() const -> sign { + return static_cast((data_ & sign_mask) >> sign_shift); + } + FMT_CONSTEXPR void set_sign(fmt::sign s) { + data_ = (data_ & ~sign_mask) | (static_cast(s) << sign_shift); + } + + constexpr auto upper() const -> bool { return (data_ & uppercase_mask) != 0; } + FMT_CONSTEXPR void set_upper() { data_ |= uppercase_mask; } + + constexpr auto alt() const -> bool { return (data_ & alternate_mask) != 0; } + FMT_CONSTEXPR void set_alt() { data_ |= alternate_mask; } + FMT_CONSTEXPR void clear_alt() { data_ &= ~alternate_mask; } + + constexpr auto localized() const -> bool { + return (data_ & localized_mask) != 0; + } + FMT_CONSTEXPR void set_localized() { data_ |= localized_mask; } + + constexpr auto fill_size() const -> size_t { + return (data_ & fill_size_mask) >> fill_size_shift; + } + + template ::value)> + constexpr auto fill() const -> const Char* { + return fill_data_; + } + template ::value)> + constexpr auto fill() const -> const Char* { + return nullptr; + } + + template constexpr auto fill_unit() const -> Char { + using uchar = unsigned char; + return static_cast(static_cast(fill_data_[0]) | + (static_cast(fill_data_[1]) << 8) | + (static_cast(fill_data_[2]) << 16)); + } + + FMT_CONSTEXPR void set_fill(char c) { + fill_data_[0] = c; + set_fill_size(1); + } + + template + FMT_CONSTEXPR void set_fill(basic_string_view s) { + auto size = s.size(); + set_fill_size(size); + if (size == 1) { + unsigned uchar = static_cast>(s[0]); + fill_data_[0] = static_cast(uchar); + fill_data_[1] = static_cast(uchar >> 8); + fill_data_[2] = static_cast(uchar >> 16); + return; + } + FMT_ASSERT(size <= max_fill_size, "invalid fill"); + for (size_t i = 0; i < size; ++i) + fill_data_[i & 3] = static_cast(s[i]); + } + + FMT_CONSTEXPR void copy_fill_from(const basic_specs& specs) { + set_fill_size(specs.fill_size()); + for (size_t i = 0; i < max_fill_size; ++i) + fill_data_[i] = specs.fill_data_[i]; + } +}; + +// Format specifiers for built-in and string types. +struct format_specs : basic_specs { + int width; + int precision; + + constexpr format_specs() : width(0), precision(-1) {} +}; + +/** + * Parsing context consisting of a format string range being parsed and an + * argument counter for automatic indexing. + */ +template class parse_context { + private: + basic_string_view fmt_; + int next_arg_id_; + + enum { use_constexpr_cast = !FMT_GCC_VERSION || FMT_GCC_VERSION >= 1200 }; + + FMT_CONSTEXPR void do_check_arg_id(int arg_id); + + public: + using char_type = Char; + using iterator = const Char*; + + constexpr explicit parse_context(basic_string_view fmt, + int next_arg_id = 0) + : fmt_(fmt), next_arg_id_(next_arg_id) {} + + /// Returns an iterator to the beginning of the format string range being + /// parsed. + constexpr auto begin() const noexcept -> iterator { return fmt_.begin(); } + + /// Returns an iterator past the end of the format string range being parsed. + constexpr auto end() const noexcept -> iterator { return fmt_.end(); } + + /// Advances the begin iterator to `it`. + FMT_CONSTEXPR void advance_to(iterator it) { + fmt_.remove_prefix(detail::to_unsigned(it - begin())); + } + + /// Reports an error if using the manual argument indexing; otherwise returns + /// the next argument index and switches to the automatic indexing. + FMT_CONSTEXPR auto next_arg_id() -> int { + if (next_arg_id_ < 0) { + report_error("cannot switch from manual to automatic argument indexing"); + return 0; + } + int id = next_arg_id_++; + do_check_arg_id(id); + return id; + } + + /// Reports an error if using the automatic argument indexing; otherwise + /// switches to the manual indexing. + FMT_CONSTEXPR void check_arg_id(int id) { + if (next_arg_id_ > 0) { + report_error("cannot switch from automatic to manual argument indexing"); + return; + } + next_arg_id_ = -1; + do_check_arg_id(id); + } + FMT_CONSTEXPR void check_arg_id(basic_string_view) { + next_arg_id_ = -1; + } + FMT_CONSTEXPR void check_dynamic_spec(int arg_id); +}; + +#ifndef FMT_USE_LOCALE +# define FMT_USE_LOCALE (FMT_OPTIMIZE_SIZE <= 1) +#endif + +// A type-erased reference to std::locale to avoid the heavy include. +class locale_ref { +#if FMT_USE_LOCALE + private: + const void* locale_; // A type-erased pointer to std::locale. + + public: + constexpr locale_ref() : locale_(nullptr) {} + + template + locale_ref(const Locale& loc) : locale_(&loc) { + // Check if std::isalpha is found via ADL to reduce the chance of misuse. + detail::ignore_unused(isalpha('x', loc)); + } + + inline explicit operator bool() const noexcept { return locale_ != nullptr; } +#endif // FMT_USE_LOCALE + + public: + template auto get() const -> Locale; +}; + +FMT_END_EXPORT + +namespace detail { + +// Specifies if `T` is a code unit type. +template struct is_code_unit : std::false_type {}; +template <> struct is_code_unit : std::true_type {}; +template <> struct is_code_unit : std::true_type {}; +template <> struct is_code_unit : std::true_type {}; +template <> struct is_code_unit : std::true_type {}; +#ifdef __cpp_char8_t +template <> struct is_code_unit : bool_constant {}; +#endif + +// Constructs fmt::basic_string_view from types implicitly convertible +// to it, deducing Char. Explicitly convertible types such as the ones returned +// from FMT_STRING are intentionally excluded. +template ::value)> +constexpr auto to_string_view(const Char* s) -> basic_string_view { + return s; +} +template ::value)> +constexpr auto to_string_view(const T& s) + -> basic_string_view { + return s; +} +template +constexpr auto to_string_view(basic_string_view s) + -> basic_string_view { + return s; +} + +template +struct has_to_string_view : std::false_type {}; +// detail:: is intentional since to_string_view is not an extension point. +template +struct has_to_string_view< + T, void_t()))>> + : std::true_type {}; + +/// String's character (code unit) type. detail:: is intentional to prevent ADL. +template ()))> +using char_t = typename V::value_type; + +enum class type { + none_type, + // Integer types should go first, + int_type, + uint_type, + long_long_type, + ulong_long_type, + int128_type, + uint128_type, + bool_type, + char_type, + last_integer_type = char_type, + // followed by floating-point types. + float_type, + double_type, + long_double_type, + last_numeric_type = long_double_type, + cstring_type, + string_type, + pointer_type, + custom_type +}; + +// Maps core type T to the corresponding type enum constant. +template +struct type_constant : std::integral_constant {}; + +#define FMT_TYPE_CONSTANT(Type, constant) \ + template \ + struct type_constant \ + : std::integral_constant {} + +FMT_TYPE_CONSTANT(int, int_type); +FMT_TYPE_CONSTANT(unsigned, uint_type); +FMT_TYPE_CONSTANT(long long, long_long_type); +FMT_TYPE_CONSTANT(unsigned long long, ulong_long_type); +FMT_TYPE_CONSTANT(int128_opt, int128_type); +FMT_TYPE_CONSTANT(uint128_opt, uint128_type); +FMT_TYPE_CONSTANT(bool, bool_type); +FMT_TYPE_CONSTANT(Char, char_type); +FMT_TYPE_CONSTANT(float, float_type); +FMT_TYPE_CONSTANT(double, double_type); +FMT_TYPE_CONSTANT(long double, long_double_type); +FMT_TYPE_CONSTANT(const Char*, cstring_type); +FMT_TYPE_CONSTANT(basic_string_view, string_type); +FMT_TYPE_CONSTANT(const void*, pointer_type); + +constexpr auto is_integral_type(type t) -> bool { + return t > type::none_type && t <= type::last_integer_type; +} +constexpr auto is_arithmetic_type(type t) -> bool { + return t > type::none_type && t <= type::last_numeric_type; +} + +constexpr auto set(type rhs) -> int { return 1 << static_cast(rhs); } +constexpr auto in(type t, int set) -> bool { + return ((set >> static_cast(t)) & 1) != 0; +} + +// Bitsets of types. +enum { + sint_set = + set(type::int_type) | set(type::long_long_type) | set(type::int128_type), + uint_set = set(type::uint_type) | set(type::ulong_long_type) | + set(type::uint128_type), + bool_set = set(type::bool_type), + char_set = set(type::char_type), + float_set = set(type::float_type) | set(type::double_type) | + set(type::long_double_type), + string_set = set(type::string_type), + cstring_set = set(type::cstring_type), + pointer_set = set(type::pointer_type) +}; + +struct view {}; + +template +struct is_view : std::false_type {}; +template +struct is_view> : std::is_base_of {}; + +template struct named_arg; +template struct is_named_arg : std::false_type {}; +template struct is_static_named_arg : std::false_type {}; + +template +struct is_named_arg> : std::true_type {}; + +template struct named_arg : view { + const Char* name; + const T& value; + + named_arg(const Char* n, const T& v) : name(n), value(v) {} + static_assert(!is_named_arg::value, "nested named arguments"); +}; + +template constexpr auto count() -> int { return B ? 1 : 0; } +template constexpr auto count() -> int { + return (B1 ? 1 : 0) + count(); +} + +template constexpr auto count_named_args() -> int { + return count::value...>(); +} +template constexpr auto count_static_named_args() -> int { + return count::value...>(); +} + +template struct named_arg_info { + const Char* name; + int id; +}; + +// named_args is non-const to suppress a bogus -Wmaybe-uninitialized in gcc 13. +template +FMT_CONSTEXPR void check_for_duplicate(named_arg_info* named_args, + int named_arg_index, + basic_string_view arg_name) { + for (int i = 0; i < named_arg_index; ++i) { + if (named_args[i].name == arg_name) report_error("duplicate named arg"); + } +} + +template ::value)> +void init_named_arg(named_arg_info*, int& arg_index, int&, const T&) { + ++arg_index; +} +template ::value)> +void init_named_arg(named_arg_info* named_args, int& arg_index, + int& named_arg_index, const T& arg) { + check_for_duplicate(named_args, named_arg_index, arg.name); + named_args[named_arg_index++] = {arg.name, arg_index++}; +} + +template ::value)> +FMT_CONSTEXPR void init_static_named_arg(named_arg_info*, int& arg_index, + int&) { + ++arg_index; +} +template ::value)> +FMT_CONSTEXPR void init_static_named_arg(named_arg_info* named_args, + int& arg_index, int& named_arg_index) { + check_for_duplicate(named_args, named_arg_index, T::name); + named_args[named_arg_index++] = {T::name, arg_index++}; +} + +// To minimize the number of types we need to deal with, long is translated +// either to int or to long long depending on its size. +enum { long_short = sizeof(long) == sizeof(int) && FMT_BUILTIN_TYPES }; +using long_type = conditional_t; +using ulong_type = conditional_t; + +template +using format_as_result = + remove_cvref_t()))>; +template +using format_as_member_result = + remove_cvref_t::format_as(std::declval()))>; + +template +struct use_format_as : std::false_type {}; +// format_as member is only used to avoid injection into the std namespace. +template +struct use_format_as_member : std::false_type {}; + +// Only map owning types because mapping views can be unsafe. +template +struct use_format_as< + T, bool_constant>::value>> + : std::true_type {}; +template +struct use_format_as_member< + T, bool_constant>::value>> + : std::true_type {}; + +template > +using use_formatter = + bool_constant<(std::is_class::value || std::is_enum::value || + std::is_union::value || std::is_array::value) && + !has_to_string_view::value && !is_named_arg::value && + !use_format_as::value && !use_format_as_member::value>; + +template > +auto has_formatter_impl(T* p, buffered_context* ctx = nullptr) + -> decltype(formatter().format(*p, *ctx), std::true_type()); +template auto has_formatter_impl(...) -> std::false_type; + +// T can be const-qualified to check if it is const-formattable. +template constexpr auto has_formatter() -> bool { + return decltype(has_formatter_impl(static_cast(nullptr)))::value; +} + +// Maps formatting argument types to natively supported types or user-defined +// types with formatters. Returns void on errors to be SFINAE-friendly. +template struct type_mapper { + static auto map(signed char) -> int; + static auto map(unsigned char) -> unsigned; + static auto map(short) -> int; + static auto map(unsigned short) -> unsigned; + static auto map(int) -> int; + static auto map(unsigned) -> unsigned; + static auto map(long) -> long_type; + static auto map(unsigned long) -> ulong_type; + static auto map(long long) -> long long; + static auto map(unsigned long long) -> unsigned long long; + static auto map(int128_opt) -> int128_opt; + static auto map(uint128_opt) -> uint128_opt; + static auto map(bool) -> bool; + + template + static auto map(bitint) -> conditional_t; + template + static auto map(ubitint) + -> conditional_t; + + template ::value)> + static auto map(T) -> conditional_t< + std::is_same::value || std::is_same::value, Char, void>; + + static auto map(float) -> float; + static auto map(double) -> double; + static auto map(long double) -> long double; + + static auto map(Char*) -> const Char*; + static auto map(const Char*) -> const Char*; + template , + FMT_ENABLE_IF(!std::is_pointer::value)> + static auto map(const T&) -> conditional_t::value, + basic_string_view, void>; + + static auto map(void*) -> const void*; + static auto map(const void*) -> const void*; + static auto map(volatile void*) -> const void*; + static auto map(const volatile void*) -> const void*; + static auto map(nullptr_t) -> const void*; + template ::value || + std::is_member_pointer::value)> + static auto map(const T&) -> void; + + template ::value)> + static auto map(const T& x) -> decltype(map(format_as(x))); + template ::value)> + static auto map(const T& x) -> decltype(map(formatter::format_as(x))); + + template ::value)> + static auto map(T&) -> conditional_t(), T&, void>; + + template ::value)> + static auto map(const T& named_arg) -> decltype(map(named_arg.value)); +}; + +// detail:: is used to workaround a bug in MSVC 2017. +template +using mapped_t = decltype(detail::type_mapper::map(std::declval())); + +// A type constant after applying type_mapper. +template +using mapped_type_constant = type_constant, Char>; + +template ::value> +using stored_type_constant = std::integral_constant< + type, Context::builtin_types || TYPE == type::int_type ? TYPE + : type::custom_type>; +// A parse context with extra data used only in compile-time checks. +template +class compile_parse_context : public parse_context { + private: + int num_args_; + const type* types_; + using base = parse_context; + + public: + FMT_CONSTEXPR explicit compile_parse_context(basic_string_view fmt, + int num_args, const type* types, + int next_arg_id = 0) + : base(fmt, next_arg_id), num_args_(num_args), types_(types) {} + + constexpr auto num_args() const -> int { return num_args_; } + constexpr auto arg_type(int id) const -> type { return types_[id]; } + + FMT_CONSTEXPR auto next_arg_id() -> int { + int id = base::next_arg_id(); + if (id >= num_args_) report_error("argument not found"); + return id; + } + + FMT_CONSTEXPR void check_arg_id(int id) { + base::check_arg_id(id); + if (id >= num_args_) report_error("argument not found"); + } + using base::check_arg_id; + + FMT_CONSTEXPR void check_dynamic_spec(int arg_id) { + ignore_unused(arg_id); + if (arg_id < num_args_ && types_ && !is_integral_type(types_[arg_id])) + report_error("width/precision is not integer"); + } +}; + +// An argument reference. +template union arg_ref { + FMT_CONSTEXPR arg_ref(int idx = 0) : index(idx) {} + FMT_CONSTEXPR arg_ref(basic_string_view n) : name(n) {} + + int index; + basic_string_view name; +}; + +// Format specifiers with width and precision resolved at formatting rather +// than parsing time to allow reusing the same parsed specifiers with +// different sets of arguments (precompilation of format strings). +template struct dynamic_format_specs : format_specs { + arg_ref width_ref; + arg_ref precision_ref; +}; + +// Converts a character to ASCII. Returns '\0' on conversion failure. +template ::value)> +constexpr auto to_ascii(Char c) -> char { + return c <= 0xff ? static_cast(c) : '\0'; +} + +// Returns the number of code units in a code point or 1 on error. +template +FMT_CONSTEXPR auto code_point_length(const Char* begin) -> int { + if (const_check(sizeof(Char) != 1)) return 1; + auto c = static_cast(*begin); + return static_cast((0x3a55000000000000ull >> (2 * (c >> 3))) & 3) + 1; +} + +// Parses the range [begin, end) as an unsigned integer. This function assumes +// that the range is non-empty and the first character is a digit. +template +FMT_CONSTEXPR auto parse_nonnegative_int(const Char*& begin, const Char* end, + int error_value) noexcept -> int { + FMT_ASSERT(begin != end && '0' <= *begin && *begin <= '9', ""); + unsigned value = 0, prev = 0; + auto p = begin; + do { + prev = value; + value = value * 10 + unsigned(*p - '0'); + ++p; + } while (p != end && '0' <= *p && *p <= '9'); + auto num_digits = p - begin; + begin = p; + int digits10 = static_cast(sizeof(int) * CHAR_BIT * 3 / 10); + if (num_digits <= digits10) return static_cast(value); + // Check for overflow. + unsigned max = INT_MAX; + return num_digits == digits10 + 1 && + prev * 10ull + unsigned(p[-1] - '0') <= max + ? static_cast(value) + : error_value; +} + +FMT_CONSTEXPR inline auto parse_align(char c) -> align { + switch (c) { + case '<': return align::left; + case '>': return align::right; + case '^': return align::center; + } + return align::none; +} + +template constexpr auto is_name_start(Char c) -> bool { + return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || c == '_'; +} + +template +FMT_CONSTEXPR auto parse_arg_id(const Char* begin, const Char* end, + Handler&& handler) -> const Char* { + Char c = *begin; + if (c >= '0' && c <= '9') { + int index = 0; + if (c != '0') + index = parse_nonnegative_int(begin, end, INT_MAX); + else + ++begin; + if (begin == end || (*begin != '}' && *begin != ':')) + report_error("invalid format string"); + else + handler.on_index(index); + return begin; + } + if (FMT_OPTIMIZE_SIZE > 1 || !is_name_start(c)) { + report_error("invalid format string"); + return begin; + } + auto it = begin; + do { + ++it; + } while (it != end && (is_name_start(*it) || ('0' <= *it && *it <= '9'))); + handler.on_name({begin, to_unsigned(it - begin)}); + return it; +} + +template struct dynamic_spec_handler { + parse_context& ctx; + arg_ref& ref; + arg_id_kind& kind; + + FMT_CONSTEXPR void on_index(int id) { + ref = id; + kind = arg_id_kind::index; + ctx.check_arg_id(id); + ctx.check_dynamic_spec(id); + } + FMT_CONSTEXPR void on_name(basic_string_view id) { + ref = id; + kind = arg_id_kind::name; + ctx.check_arg_id(id); + } +}; + +template struct parse_dynamic_spec_result { + const Char* end; + arg_id_kind kind; +}; + +// Parses integer | "{" [arg_id] "}". +template +FMT_CONSTEXPR auto parse_dynamic_spec(const Char* begin, const Char* end, + int& value, arg_ref& ref, + parse_context& ctx) + -> parse_dynamic_spec_result { + FMT_ASSERT(begin != end, ""); + auto kind = arg_id_kind::none; + if ('0' <= *begin && *begin <= '9') { + int val = parse_nonnegative_int(begin, end, -1); + if (val == -1) report_error("number is too big"); + value = val; + } else { + if (*begin == '{') { + ++begin; + if (begin != end) { + Char c = *begin; + if (c == '}' || c == ':') { + int id = ctx.next_arg_id(); + ref = id; + kind = arg_id_kind::index; + ctx.check_dynamic_spec(id); + } else { + begin = parse_arg_id(begin, end, + dynamic_spec_handler{ctx, ref, kind}); + } + } + if (begin != end && *begin == '}') return {++begin, kind}; + } + report_error("invalid format string"); + } + return {begin, kind}; +} + +template +FMT_CONSTEXPR auto parse_width(const Char* begin, const Char* end, + format_specs& specs, arg_ref& width_ref, + parse_context& ctx) -> const Char* { + auto result = parse_dynamic_spec(begin, end, specs.width, width_ref, ctx); + specs.set_dynamic_width(result.kind); + return result.end; +} + +template +FMT_CONSTEXPR auto parse_precision(const Char* begin, const Char* end, + format_specs& specs, + arg_ref& precision_ref, + parse_context& ctx) -> const Char* { + ++begin; + if (begin == end) { + report_error("invalid precision"); + return begin; + } + auto result = + parse_dynamic_spec(begin, end, specs.precision, precision_ref, ctx); + specs.set_dynamic_precision(result.kind); + return result.end; +} + +enum class state { start, align, sign, hash, zero, width, precision, locale }; + +// Parses standard format specifiers. +template +FMT_CONSTEXPR auto parse_format_specs(const Char* begin, const Char* end, + dynamic_format_specs& specs, + parse_context& ctx, type arg_type) + -> const Char* { + auto c = '\0'; + if (end - begin > 1) { + auto next = to_ascii(begin[1]); + c = parse_align(next) == align::none ? to_ascii(*begin) : '\0'; + } else { + if (begin == end) return begin; + c = to_ascii(*begin); + } + + struct { + state current_state = state::start; + FMT_CONSTEXPR void operator()(state s, bool valid = true) { + if (current_state >= s || !valid) + report_error("invalid format specifier"); + current_state = s; + } + } enter_state; + + using pres = presentation_type; + constexpr auto integral_set = sint_set | uint_set | bool_set | char_set; + struct { + const Char*& begin; + format_specs& specs; + type arg_type; + + FMT_CONSTEXPR auto operator()(pres pres_type, int set) -> const Char* { + if (!in(arg_type, set)) report_error("invalid format specifier"); + specs.set_type(pres_type); + return begin + 1; + } + } parse_presentation_type{begin, specs, arg_type}; + + for (;;) { + switch (c) { + case '<': + case '>': + case '^': + enter_state(state::align); + specs.set_align(parse_align(c)); + ++begin; + break; + case '+': + case ' ': + specs.set_sign(c == ' ' ? sign::space : sign::plus); + FMT_FALLTHROUGH; + case '-': + enter_state(state::sign, in(arg_type, sint_set | float_set)); + ++begin; + break; + case '#': + enter_state(state::hash, is_arithmetic_type(arg_type)); + specs.set_alt(); + ++begin; + break; + case '0': + enter_state(state::zero); + if (!is_arithmetic_type(arg_type)) + report_error("format specifier requires numeric argument"); + if (specs.align() == align::none) { + // Ignore 0 if align is specified for compatibility with std::format. + specs.set_align(align::numeric); + specs.set_fill('0'); + } + ++begin; + break; + // clang-format off + case '1': case '2': case '3': case '4': case '5': + case '6': case '7': case '8': case '9': case '{': + // clang-format on + enter_state(state::width); + begin = parse_width(begin, end, specs, specs.width_ref, ctx); + break; + case '.': + enter_state(state::precision, + in(arg_type, float_set | string_set | cstring_set)); + begin = parse_precision(begin, end, specs, specs.precision_ref, ctx); + break; + case 'L': + enter_state(state::locale, is_arithmetic_type(arg_type)); + specs.set_localized(); + ++begin; + break; + case 'd': return parse_presentation_type(pres::dec, integral_set); + case 'X': specs.set_upper(); FMT_FALLTHROUGH; + case 'x': return parse_presentation_type(pres::hex, integral_set); + case 'o': return parse_presentation_type(pres::oct, integral_set); + case 'B': specs.set_upper(); FMT_FALLTHROUGH; + case 'b': return parse_presentation_type(pres::bin, integral_set); + case 'E': specs.set_upper(); FMT_FALLTHROUGH; + case 'e': return parse_presentation_type(pres::exp, float_set); + case 'F': specs.set_upper(); FMT_FALLTHROUGH; + case 'f': return parse_presentation_type(pres::fixed, float_set); + case 'G': specs.set_upper(); FMT_FALLTHROUGH; + case 'g': return parse_presentation_type(pres::general, float_set); + case 'A': specs.set_upper(); FMT_FALLTHROUGH; + case 'a': return parse_presentation_type(pres::hexfloat, float_set); + case 'c': + if (arg_type == type::bool_type) report_error("invalid format specifier"); + return parse_presentation_type(pres::chr, integral_set); + case 's': + return parse_presentation_type(pres::string, + bool_set | string_set | cstring_set); + case 'p': + return parse_presentation_type(pres::pointer, pointer_set | cstring_set); + case '?': + return parse_presentation_type(pres::debug, + char_set | string_set | cstring_set); + case '}': return begin; + default: { + if (*begin == '}') return begin; + // Parse fill and alignment. + auto fill_end = begin + code_point_length(begin); + if (end - fill_end <= 0) { + report_error("invalid format specifier"); + return begin; + } + if (*begin == '{') { + report_error("invalid fill character '{'"); + return begin; + } + auto alignment = parse_align(to_ascii(*fill_end)); + enter_state(state::align, alignment != align::none); + specs.set_fill( + basic_string_view(begin, to_unsigned(fill_end - begin))); + specs.set_align(alignment); + begin = fill_end + 1; + } + } + if (begin == end) return begin; + c = to_ascii(*begin); + } +} + +template +FMT_CONSTEXPR FMT_INLINE auto parse_replacement_field(const Char* begin, + const Char* end, + Handler&& handler) + -> const Char* { + ++begin; + if (begin == end) { + handler.on_error("invalid format string"); + return end; + } + int arg_id = 0; + switch (*begin) { + case '}': + handler.on_replacement_field(handler.on_arg_id(), begin); + return begin + 1; + case '{': handler.on_text(begin, begin + 1); return begin + 1; + case ':': arg_id = handler.on_arg_id(); break; + default: { + struct id_adapter { + Handler& handler; + int arg_id; + + FMT_CONSTEXPR void on_index(int id) { arg_id = handler.on_arg_id(id); } + FMT_CONSTEXPR void on_name(basic_string_view id) { + arg_id = handler.on_arg_id(id); + } + } adapter = {handler, 0}; + begin = parse_arg_id(begin, end, adapter); + arg_id = adapter.arg_id; + Char c = begin != end ? *begin : Char(); + if (c == '}') { + handler.on_replacement_field(arg_id, begin); + return begin + 1; + } + if (c != ':') { + handler.on_error("missing '}' in format string"); + return end; + } + break; + } + } + begin = handler.on_format_specs(arg_id, begin + 1, end); + if (begin == end || *begin != '}') + return handler.on_error("unknown format specifier"), end; + return begin + 1; +} + +template +FMT_CONSTEXPR void parse_format_string(basic_string_view fmt, + Handler&& handler) { + auto begin = fmt.data(), end = begin + fmt.size(); + auto p = begin; + while (p != end) { + auto c = *p++; + if (c == '{') { + handler.on_text(begin, p - 1); + begin = p = parse_replacement_field(p - 1, end, handler); + } else if (c == '}') { + if (p == end || *p != '}') + return handler.on_error("unmatched '}' in format string"); + handler.on_text(begin, p); + begin = ++p; + } + } + handler.on_text(begin, end); +} + +// Checks char specs and returns true iff the presentation type is char-like. +FMT_CONSTEXPR inline auto check_char_specs(const format_specs& specs) -> bool { + auto type = specs.type(); + if (type != presentation_type::none && type != presentation_type::chr && + type != presentation_type::debug) { + return false; + } + if (specs.align() == align::numeric || specs.sign() != sign::none || + specs.alt()) { + report_error("invalid format specifier for char"); + } + return true; +} + +// A base class for compile-time strings. +struct compile_string {}; + +template +FMT_VISIBILITY("hidden") // Suppress an ld warning on macOS (#3769). +FMT_CONSTEXPR auto invoke_parse(parse_context& ctx) -> const Char* { + using mapped_type = remove_cvref_t>; + constexpr bool formattable = + std::is_constructible>::value; + if (!formattable) return ctx.begin(); // Error is reported in the value ctor. + using formatted_type = conditional_t; + return formatter().parse(ctx); +} + +template struct arg_pack {}; + +template +class format_string_checker { + private: + type types_[max_of(1, NUM_ARGS)]; + named_arg_info named_args_[max_of(1, NUM_NAMED_ARGS)]; + compile_parse_context context_; + + using parse_func = auto (*)(parse_context&) -> const Char*; + parse_func parse_funcs_[max_of(1, NUM_ARGS)]; + + public: + template + FMT_CONSTEXPR explicit format_string_checker(basic_string_view fmt, + arg_pack) + : types_{mapped_type_constant::value...}, + named_args_{}, + context_(fmt, NUM_ARGS, types_), + parse_funcs_{&invoke_parse...} { + int arg_index = 0, named_arg_index = 0; + FMT_APPLY_VARIADIC( + init_static_named_arg(named_args_, arg_index, named_arg_index)); + ignore_unused(arg_index, named_arg_index); + } + + FMT_CONSTEXPR void on_text(const Char*, const Char*) {} + + FMT_CONSTEXPR auto on_arg_id() -> int { return context_.next_arg_id(); } + FMT_CONSTEXPR auto on_arg_id(int id) -> int { + context_.check_arg_id(id); + return id; + } + FMT_CONSTEXPR auto on_arg_id(basic_string_view id) -> int { + for (int i = 0; i < NUM_NAMED_ARGS; ++i) { + if (named_args_[i].name == id) return named_args_[i].id; + } + if (!DYNAMIC_NAMES) on_error("argument not found"); + return -1; + } + + FMT_CONSTEXPR void on_replacement_field(int id, const Char* begin) { + on_format_specs(id, begin, begin); // Call parse() on empty specs. + } + + FMT_CONSTEXPR auto on_format_specs(int id, const Char* begin, const Char* end) + -> const Char* { + context_.advance_to(begin); + if (id >= 0 && id < NUM_ARGS) return parse_funcs_[id](context_); + + // If id is out of range, it means we do not know the type and cannot parse + // the format at compile time. Instead, skip over content until we finish + // the format spec, accounting for any nested replacements. + for (int bracket_count = 0; + begin != end && (bracket_count > 0 || *begin != '}'); ++begin) { + if (*begin == '{') + ++bracket_count; + else if (*begin == '}') + --bracket_count; + } + return begin; + } + + FMT_NORETURN FMT_CONSTEXPR void on_error(const char* message) { + report_error(message); + } +}; + +/// A contiguous memory buffer with an optional growing ability. It is an +/// internal class and shouldn't be used directly, only via `memory_buffer`. +template class buffer { + private: + T* ptr_; + size_t size_; + size_t capacity_; + + using grow_fun = void (*)(buffer& buf, size_t capacity); + grow_fun grow_; + + protected: + // Don't initialize ptr_ since it is not accessed to save a few cycles. + FMT_MSC_WARNING(suppress : 26495) + FMT_CONSTEXPR buffer(grow_fun grow, size_t sz) noexcept + : size_(sz), capacity_(sz), grow_(grow) {} + + constexpr buffer(grow_fun grow, T* p = nullptr, size_t sz = 0, + size_t cap = 0) noexcept + : ptr_(p), size_(sz), capacity_(cap), grow_(grow) {} + + FMT_CONSTEXPR20 ~buffer() = default; + buffer(buffer&&) = default; + + /// Sets the buffer data and capacity. + FMT_CONSTEXPR void set(T* buf_data, size_t buf_capacity) noexcept { + ptr_ = buf_data; + capacity_ = buf_capacity; + } + + public: + using value_type = T; + using const_reference = const T&; + + buffer(const buffer&) = delete; + void operator=(const buffer&) = delete; + + auto begin() noexcept -> T* { return ptr_; } + auto end() noexcept -> T* { return ptr_ + size_; } + + auto begin() const noexcept -> const T* { return ptr_; } + auto end() const noexcept -> const T* { return ptr_ + size_; } + + /// Returns the size of this buffer. + constexpr auto size() const noexcept -> size_t { return size_; } + + /// Returns the capacity of this buffer. + constexpr auto capacity() const noexcept -> size_t { return capacity_; } + + /// Returns a pointer to the buffer data (not null-terminated). + FMT_CONSTEXPR auto data() noexcept -> T* { return ptr_; } + FMT_CONSTEXPR auto data() const noexcept -> const T* { return ptr_; } + + /// Clears this buffer. + FMT_CONSTEXPR void clear() { size_ = 0; } + + // Tries resizing the buffer to contain `count` elements. If T is a POD type + // the new elements may not be initialized. + FMT_CONSTEXPR void try_resize(size_t count) { + try_reserve(count); + size_ = min_of(count, capacity_); + } + + // Tries increasing the buffer capacity to `new_capacity`. It can increase the + // capacity by a smaller amount than requested but guarantees there is space + // for at least one additional element either by increasing the capacity or by + // flushing the buffer if it is full. + FMT_CONSTEXPR void try_reserve(size_t new_capacity) { + if (new_capacity > capacity_) grow_(*this, new_capacity); + } + + FMT_CONSTEXPR void push_back(const T& value) { + try_reserve(size_ + 1); + ptr_[size_++] = value; + } + + /// Appends data to the end of the buffer. + template +// Workaround for MSVC2019 to fix error C2893: Failed to specialize function +// template 'void fmt::v11::detail::buffer::append(const U *,const U *)'. +#if !FMT_MSC_VERSION || FMT_MSC_VERSION >= 1940 + FMT_CONSTEXPR20 +#endif + void + append(const U* begin, const U* end) { + while (begin != end) { + auto size = size_; + auto free_cap = capacity_ - size; + auto count = to_unsigned(end - begin); + if (free_cap < count) { + grow_(*this, size + count); + size = size_; + free_cap = capacity_ - size; + count = count < free_cap ? count : free_cap; + } + // A loop is faster than memcpy on small sizes. + T* out = ptr_ + size; + for (size_t i = 0; i < count; ++i) out[i] = begin[i]; + size_ += count; + begin += count; + } + } + + template FMT_CONSTEXPR auto operator[](Idx index) -> T& { + return ptr_[index]; + } + template + FMT_CONSTEXPR auto operator[](Idx index) const -> const T& { + return ptr_[index]; + } +}; + +struct buffer_traits { + constexpr explicit buffer_traits(size_t) {} + constexpr auto count() const -> size_t { return 0; } + constexpr auto limit(size_t size) const -> size_t { return size; } +}; + +class fixed_buffer_traits { + private: + size_t count_ = 0; + size_t limit_; + + public: + constexpr explicit fixed_buffer_traits(size_t limit) : limit_(limit) {} + constexpr auto count() const -> size_t { return count_; } + FMT_CONSTEXPR auto limit(size_t size) -> size_t { + size_t n = limit_ > count_ ? limit_ - count_ : 0; + count_ += size; + return min_of(size, n); + } +}; + +// A buffer that writes to an output iterator when flushed. +template +class iterator_buffer : public Traits, public buffer { + private: + OutputIt out_; + enum { buffer_size = 256 }; + T data_[buffer_size]; + + static FMT_CONSTEXPR void grow(buffer& buf, size_t) { + if (buf.size() == buffer_size) static_cast(buf).flush(); + } + + void flush() { + auto size = this->size(); + this->clear(); + const T* begin = data_; + const T* end = begin + this->limit(size); + while (begin != end) *out_++ = *begin++; + } + + public: + explicit iterator_buffer(OutputIt out, size_t n = buffer_size) + : Traits(n), buffer(grow, data_, 0, buffer_size), out_(out) {} + iterator_buffer(iterator_buffer&& other) noexcept + : Traits(other), + buffer(grow, data_, 0, buffer_size), + out_(other.out_) {} + ~iterator_buffer() { + // Don't crash if flush fails during unwinding. + FMT_TRY { flush(); } + FMT_CATCH(...) {} + } + + auto out() -> OutputIt { + flush(); + return out_; + } + auto count() const -> size_t { return Traits::count() + this->size(); } +}; + +template +class iterator_buffer : public fixed_buffer_traits, + public buffer { + private: + T* out_; + enum { buffer_size = 256 }; + T data_[buffer_size]; + + static FMT_CONSTEXPR void grow(buffer& buf, size_t) { + if (buf.size() == buf.capacity()) + static_cast(buf).flush(); + } + + void flush() { + size_t n = this->limit(this->size()); + if (this->data() == out_) { + out_ += n; + this->set(data_, buffer_size); + } + this->clear(); + } + + public: + explicit iterator_buffer(T* out, size_t n = buffer_size) + : fixed_buffer_traits(n), buffer(grow, out, 0, n), out_(out) {} + iterator_buffer(iterator_buffer&& other) noexcept + : fixed_buffer_traits(other), + buffer(static_cast(other)), + out_(other.out_) { + if (this->data() != out_) { + this->set(data_, buffer_size); + this->clear(); + } + } + ~iterator_buffer() { flush(); } + + auto out() -> T* { + flush(); + return out_; + } + auto count() const -> size_t { + return fixed_buffer_traits::count() + this->size(); + } +}; + +template class iterator_buffer : public buffer { + public: + explicit iterator_buffer(T* out, size_t = 0) + : buffer([](buffer&, size_t) {}, out, 0, ~size_t()) {} + + auto out() -> T* { return &*this->end(); } +}; + +template +class container_buffer : public buffer { + private: + using value_type = typename Container::value_type; + + static FMT_CONSTEXPR void grow(buffer& buf, size_t capacity) { + auto& self = static_cast(buf); + self.container.resize(capacity); + self.set(&self.container[0], capacity); + } + + public: + Container& container; + + explicit container_buffer(Container& c) + : buffer(grow, c.size()), container(c) {} +}; + +// A buffer that writes to a container with the contiguous storage. +template +class iterator_buffer< + OutputIt, + enable_if_t::value && + is_contiguous::value, + typename OutputIt::container_type::value_type>> + : public container_buffer { + private: + using base = container_buffer; + + public: + explicit iterator_buffer(typename OutputIt::container_type& c) : base(c) {} + explicit iterator_buffer(OutputIt out, size_t = 0) + : base(get_container(out)) {} + + auto out() -> OutputIt { return OutputIt(this->container); } +}; + +// A buffer that counts the number of code units written discarding the output. +template class counting_buffer : public buffer { + private: + enum { buffer_size = 256 }; + T data_[buffer_size]; + size_t count_ = 0; + + static FMT_CONSTEXPR void grow(buffer& buf, size_t) { + if (buf.size() != buffer_size) return; + static_cast(buf).count_ += buf.size(); + buf.clear(); + } + + public: + FMT_CONSTEXPR counting_buffer() : buffer(grow, data_, 0, buffer_size) {} + + constexpr auto count() const noexcept -> size_t { + return count_ + this->size(); + } +}; + +template +struct is_back_insert_iterator> : std::true_type {}; + +template +struct has_back_insert_iterator_container_append : std::false_type {}; +template +struct has_back_insert_iterator_container_append< + OutputIt, InputIt, + void_t()) + .append(std::declval(), + std::declval()))>> : std::true_type {}; + +template +struct has_back_insert_iterator_container_insert_at_end : std::false_type {}; + +template +struct has_back_insert_iterator_container_insert_at_end< + OutputIt, InputIt, + void_t()) + .insert(get_container(std::declval()).end(), + std::declval(), + std::declval()))>> : std::true_type {}; + +// An optimized version of std::copy with the output value type (T). +template ::value&& + has_back_insert_iterator_container_append< + OutputIt, InputIt>::value)> +FMT_CONSTEXPR20 auto copy(InputIt begin, InputIt end, OutputIt out) + -> OutputIt { + get_container(out).append(begin, end); + return out; +} + +template ::value && + !has_back_insert_iterator_container_append< + OutputIt, InputIt>::value && + has_back_insert_iterator_container_insert_at_end< + OutputIt, InputIt>::value)> +FMT_CONSTEXPR20 auto copy(InputIt begin, InputIt end, OutputIt out) + -> OutputIt { + auto& c = get_container(out); + c.insert(c.end(), begin, end); + return out; +} + +template ::value && + (has_back_insert_iterator_container_append< + OutputIt, InputIt>::value || + has_back_insert_iterator_container_insert_at_end< + OutputIt, InputIt>::value)))> +FMT_CONSTEXPR auto copy(InputIt begin, InputIt end, OutputIt out) -> OutputIt { + while (begin != end) *out++ = static_cast(*begin++); + return out; +} + +template +FMT_CONSTEXPR auto copy(basic_string_view s, OutputIt out) -> OutputIt { + return copy(s.begin(), s.end(), out); +} + +template +struct is_buffer_appender : std::false_type {}; +template +struct is_buffer_appender< + It, bool_constant< + is_back_insert_iterator::value && + std::is_base_of, + typename It::container_type>::value>> + : std::true_type {}; + +// Maps an output iterator to a buffer. +template ::value)> +auto get_buffer(OutputIt out) -> iterator_buffer { + return iterator_buffer(out); +} +template ::value)> +auto get_buffer(OutputIt out) -> buffer& { + return get_container(out); +} + +template +auto get_iterator(Buf& buf, OutputIt) -> decltype(buf.out()) { + return buf.out(); +} +template +auto get_iterator(buffer&, OutputIt out) -> OutputIt { + return out; +} + +// This type is intentionally undefined, only used for errors. +template struct type_is_unformattable_for; + +template struct string_value { + const Char* data; + size_t size; + auto str() const -> basic_string_view { return {data, size}; } +}; + +template struct custom_value { + using char_type = typename Context::char_type; + void* value; + void (*format)(void* arg, parse_context& parse_ctx, Context& ctx); +}; + +template struct named_arg_value { + const named_arg_info* data; + size_t size; +}; + +struct custom_tag {}; + +#if !FMT_BUILTIN_TYPES +# define FMT_BUILTIN , monostate +#else +# define FMT_BUILTIN +#endif + +// A formatting argument value. +template class value { + public: + using char_type = typename Context::char_type; + + union { + monostate no_value; + int int_value; + unsigned uint_value; + long long long_long_value; + unsigned long long ulong_long_value; + int128_opt int128_value; + uint128_opt uint128_value; + bool bool_value; + char_type char_value; + float float_value; + double double_value; + long double long_double_value; + const void* pointer; + string_value string; + custom_value custom; + named_arg_value named_args; + }; + + constexpr FMT_INLINE value() : no_value() {} + constexpr FMT_INLINE value(signed char x) : int_value(x) {} + constexpr FMT_INLINE value(unsigned char x FMT_BUILTIN) : uint_value(x) {} + constexpr FMT_INLINE value(signed short x) : int_value(x) {} + constexpr FMT_INLINE value(unsigned short x FMT_BUILTIN) : uint_value(x) {} + constexpr FMT_INLINE value(int x) : int_value(x) {} + constexpr FMT_INLINE value(unsigned x FMT_BUILTIN) : uint_value(x) {} + FMT_CONSTEXPR FMT_INLINE value(long x FMT_BUILTIN) : value(long_type(x)) {} + FMT_CONSTEXPR FMT_INLINE value(unsigned long x FMT_BUILTIN) + : value(ulong_type(x)) {} + constexpr FMT_INLINE value(long long x FMT_BUILTIN) : long_long_value(x) {} + constexpr FMT_INLINE value(unsigned long long x FMT_BUILTIN) + : ulong_long_value(x) {} + FMT_INLINE value(int128_opt x FMT_BUILTIN) : int128_value(x) {} + FMT_INLINE value(uint128_opt x FMT_BUILTIN) : uint128_value(x) {} + constexpr FMT_INLINE value(bool x FMT_BUILTIN) : bool_value(x) {} + + template + constexpr FMT_INLINE value(bitint x FMT_BUILTIN) : long_long_value(x) { + static_assert(N <= 64, "unsupported _BitInt"); + } + template + constexpr FMT_INLINE value(ubitint x FMT_BUILTIN) : ulong_long_value(x) { + static_assert(N <= 64, "unsupported _BitInt"); + } + + template ::value)> + constexpr FMT_INLINE value(T x FMT_BUILTIN) : char_value(x) { + static_assert( + std::is_same::value || std::is_same::value, + "mixing character types is disallowed"); + } + + constexpr FMT_INLINE value(float x FMT_BUILTIN) : float_value(x) {} + constexpr FMT_INLINE value(double x FMT_BUILTIN) : double_value(x) {} + FMT_INLINE value(long double x FMT_BUILTIN) : long_double_value(x) {} + + FMT_CONSTEXPR FMT_INLINE value(char_type* x FMT_BUILTIN) { + string.data = x; + if (is_constant_evaluated()) string.size = 0; + } + FMT_CONSTEXPR FMT_INLINE value(const char_type* x FMT_BUILTIN) { + string.data = x; + if (is_constant_evaluated()) string.size = 0; + } + template , + FMT_ENABLE_IF(!std::is_pointer::value)> + FMT_CONSTEXPR value(const T& x FMT_BUILTIN) { + static_assert(std::is_same::value, + "mixing character types is disallowed"); + auto sv = to_string_view(x); + string.data = sv.data(); + string.size = sv.size(); + } + FMT_INLINE value(void* x FMT_BUILTIN) : pointer(x) {} + FMT_INLINE value(const void* x FMT_BUILTIN) : pointer(x) {} + FMT_INLINE value(volatile void* x FMT_BUILTIN) + : pointer(const_cast(x)) {} + FMT_INLINE value(const volatile void* x FMT_BUILTIN) + : pointer(const_cast(x)) {} + FMT_INLINE value(nullptr_t) : pointer(nullptr) {} + + template ::value || + std::is_member_pointer::value)> + value(const T&) { + // Formatting of arbitrary pointers is disallowed. If you want to format a + // pointer cast it to `void*` or `const void*`. In particular, this forbids + // formatting of `[const] volatile char*` printed as bool by iostreams. + static_assert(sizeof(T) == 0, + "formatting of non-void pointers is disallowed"); + } + + template ::value)> + value(const T& x) : value(format_as(x)) {} + template ::value)> + value(const T& x) : value(formatter::format_as(x)) {} + + template ::value)> + value(const T& named_arg) : value(named_arg.value) {} + + template ::value || !FMT_BUILTIN_TYPES)> + FMT_CONSTEXPR20 FMT_INLINE value(T& x) : value(x, custom_tag()) {} + + FMT_ALWAYS_INLINE value(const named_arg_info* args, size_t size) + : named_args{args, size} {} + + private: + template ())> + FMT_CONSTEXPR value(T& x, custom_tag) { + using value_type = remove_const_t; + // T may overload operator& e.g. std::vector::reference in libc++. + if (!is_constant_evaluated()) { + custom.value = + const_cast(&reinterpret_cast(x)); + } else { + custom.value = nullptr; +#if defined(__cpp_if_constexpr) + if constexpr (std::is_same*>::value) + custom.value = const_cast(&x); +#endif + } + custom.format = format_custom; + } + + template ())> + FMT_CONSTEXPR value(const T&, custom_tag) { + // Cannot format an argument; to make type T formattable provide a + // formatter specialization: https://fmt.dev/latest/api.html#udt. + type_is_unformattable_for _; + } + + // Formats an argument of a custom type, such as a user-defined class. + template + static void format_custom(void* arg, parse_context& parse_ctx, + Context& ctx) { + auto f = formatter(); + parse_ctx.advance_to(f.parse(parse_ctx)); + using qualified_type = + conditional_t(), const T, T>; + // format must be const for compatibility with std::format and compilation. + const auto& cf = f; + ctx.advance_to(cf.format(*static_cast(arg), ctx)); + } +}; + +enum { packed_arg_bits = 4 }; +// Maximum number of arguments with packed types. +enum { max_packed_args = 62 / packed_arg_bits }; +enum : unsigned long long { is_unpacked_bit = 1ULL << 63 }; +enum : unsigned long long { has_named_args_bit = 1ULL << 62 }; + +template +struct is_output_iterator : std::false_type {}; + +template <> struct is_output_iterator : std::true_type {}; + +template +struct is_output_iterator< + It, T, + enable_if_t&>()++), + T>::value>> : std::true_type {}; + +template constexpr auto encode_types() -> unsigned long long { + return 0; +} + +template +constexpr auto encode_types() -> unsigned long long { + return static_cast(stored_type_constant::value) | + (encode_types() << packed_arg_bits); +} + +template +constexpr auto make_descriptor() -> unsigned long long { + return NUM_ARGS <= max_packed_args ? encode_types() + : is_unpacked_bit | NUM_ARGS; +} + +template +using arg_t = conditional_t, + basic_format_arg>; + +template +struct named_arg_store { + // args_[0].named_args points to named_args to avoid bloating format_args. + arg_t args[1u + NUM_ARGS]; + named_arg_info + named_args[static_cast(NUM_NAMED_ARGS)]; + + template + FMT_CONSTEXPR FMT_ALWAYS_INLINE named_arg_store(T&... values) + : args{{named_args, NUM_NAMED_ARGS}, values...} { + int arg_index = 0, named_arg_index = 0; + FMT_APPLY_VARIADIC( + init_named_arg(named_args, arg_index, named_arg_index, values)); + } + + named_arg_store(named_arg_store&& rhs) { + args[0] = {named_args, NUM_NAMED_ARGS}; + for (size_t i = 1; i < sizeof(args) / sizeof(*args); ++i) + args[i] = rhs.args[i]; + for (size_t i = 0; i < NUM_NAMED_ARGS; ++i) + named_args[i] = rhs.named_args[i]; + } + + named_arg_store(const named_arg_store& rhs) = delete; + auto operator=(const named_arg_store& rhs) -> named_arg_store& = delete; + auto operator=(named_arg_store&& rhs) -> named_arg_store& = delete; + operator const arg_t*() const { return args + 1; } +}; + +// An array of references to arguments. It can be implicitly converted to +// `basic_format_args` for passing into type-erased formatting functions +// such as `vformat`. It is a plain struct to reduce binary size in debug mode. +template +struct format_arg_store { + // +1 to workaround a bug in gcc 7.5 that causes duplicated-branches warning. + using type = + conditional_t[max_of(1, NUM_ARGS)], + named_arg_store>; + type args; +}; + +// TYPE can be different from type_constant, e.g. for __float128. +template struct native_formatter { + private: + dynamic_format_specs specs_; + + public: + using nonlocking = void; + + FMT_CONSTEXPR auto parse(parse_context& ctx) -> const Char* { + if (ctx.begin() == ctx.end() || *ctx.begin() == '}') return ctx.begin(); + auto end = parse_format_specs(ctx.begin(), ctx.end(), specs_, ctx, TYPE); + if (const_check(TYPE == type::char_type)) check_char_specs(specs_); + return end; + } + + template + FMT_CONSTEXPR void set_debug_format(bool set = true) { + specs_.set_type(set ? presentation_type::debug : presentation_type::none); + } + + FMT_PRAGMA_CLANG(diagnostic ignored "-Wundefined-inline") + template + FMT_CONSTEXPR auto format(const T& val, FormatContext& ctx) const + -> decltype(ctx.out()); +}; + +template +struct locking + : bool_constant::value == type::custom_type> {}; +template +struct locking>::nonlocking>> + : std::false_type {}; + +template FMT_CONSTEXPR inline auto is_locking() -> bool { + return locking::value; +} +template +FMT_CONSTEXPR inline auto is_locking() -> bool { + return locking::value || is_locking(); +} + +FMT_API void vformat_to(buffer& buf, string_view fmt, format_args args, + locale_ref loc = {}); + +#if FMT_WIN32 +FMT_API void vprint_mojibake(FILE*, string_view, format_args, bool); +#else // format_args is passed by reference since it is defined later. +inline void vprint_mojibake(FILE*, string_view, const format_args&, bool) {} +#endif +} // namespace detail + +// The main public API. + +template +FMT_CONSTEXPR void parse_context::do_check_arg_id(int arg_id) { + // Argument id is only checked at compile time during parsing because + // formatting has its own validation. + if (detail::is_constant_evaluated() && use_constexpr_cast) { + auto ctx = static_cast*>(this); + if (arg_id >= ctx->num_args()) report_error("argument not found"); + } +} + +template +FMT_CONSTEXPR void parse_context::check_dynamic_spec(int arg_id) { + using detail::compile_parse_context; + if (detail::is_constant_evaluated() && use_constexpr_cast) + static_cast*>(this)->check_dynamic_spec(arg_id); +} + +FMT_BEGIN_EXPORT + +// An output iterator that appends to a buffer. It is used instead of +// back_insert_iterator to reduce symbol sizes and avoid dependency. +template class basic_appender { + protected: + detail::buffer* container; + + public: + using container_type = detail::buffer; + + FMT_CONSTEXPR basic_appender(detail::buffer& buf) : container(&buf) {} + + FMT_CONSTEXPR20 auto operator=(T c) -> basic_appender& { + container->push_back(c); + return *this; + } + FMT_CONSTEXPR20 auto operator*() -> basic_appender& { return *this; } + FMT_CONSTEXPR20 auto operator++() -> basic_appender& { return *this; } + FMT_CONSTEXPR20 auto operator++(int) -> basic_appender { return *this; } +}; + +// A formatting argument. Context is a template parameter for the compiled API +// where output can be unbuffered. +template class basic_format_arg { + private: + detail::value value_; + detail::type type_; + + friend class basic_format_args; + + using char_type = typename Context::char_type; + + public: + class handle { + private: + detail::custom_value custom_; + + public: + explicit handle(detail::custom_value custom) : custom_(custom) {} + + void format(parse_context& parse_ctx, Context& ctx) const { + custom_.format(custom_.value, parse_ctx, ctx); + } + }; + + constexpr basic_format_arg() : type_(detail::type::none_type) {} + basic_format_arg(const detail::named_arg_info* args, size_t size) + : value_(args, size) {} + template + basic_format_arg(T&& val) + : value_(val), type_(detail::stored_type_constant::value) {} + + constexpr explicit operator bool() const noexcept { + return type_ != detail::type::none_type; + } + auto type() const -> detail::type { return type_; } + + /** + * Visits an argument dispatching to the appropriate visit method based on + * the argument type. For example, if the argument type is `double` then + * `vis(value)` will be called with the value of type `double`. + */ + template + FMT_CONSTEXPR FMT_INLINE auto visit(Visitor&& vis) const -> decltype(vis(0)) { + using detail::map; + switch (type_) { + case detail::type::none_type: break; + case detail::type::int_type: return vis(value_.int_value); + case detail::type::uint_type: return vis(value_.uint_value); + case detail::type::long_long_type: return vis(value_.long_long_value); + case detail::type::ulong_long_type: return vis(value_.ulong_long_value); + case detail::type::int128_type: return vis(map(value_.int128_value)); + case detail::type::uint128_type: return vis(map(value_.uint128_value)); + case detail::type::bool_type: return vis(value_.bool_value); + case detail::type::char_type: return vis(value_.char_value); + case detail::type::float_type: return vis(value_.float_value); + case detail::type::double_type: return vis(value_.double_value); + case detail::type::long_double_type: return vis(value_.long_double_value); + case detail::type::cstring_type: return vis(value_.string.data); + case detail::type::string_type: return vis(value_.string.str()); + case detail::type::pointer_type: return vis(value_.pointer); + case detail::type::custom_type: return vis(handle(value_.custom)); + } + return vis(monostate()); + } + + auto format_custom(const char_type* parse_begin, + parse_context& parse_ctx, Context& ctx) + -> bool { + if (type_ != detail::type::custom_type) return false; + parse_ctx.advance_to(parse_begin); + value_.custom.format(value_.custom.value, parse_ctx, ctx); + return true; + } +}; + +/** + * A view of a collection of formatting arguments. To avoid lifetime issues it + * should only be used as a parameter type in type-erased functions such as + * `vformat`: + * + * void vlog(fmt::string_view fmt, fmt::format_args args); // OK + * fmt::format_args args = fmt::make_format_args(); // Dangling reference + */ +template class basic_format_args { + private: + // A descriptor that contains information about formatting arguments. + // If the number of arguments is less or equal to max_packed_args then + // argument types are passed in the descriptor. This reduces binary code size + // per formatting function call. + unsigned long long desc_; + union { + // If is_packed() returns true then argument values are stored in values_; + // otherwise they are stored in args_. This is done to improve cache + // locality and reduce compiled code size since storing larger objects + // may require more code (at least on x86-64) even if the same amount of + // data is actually copied to stack. It saves ~10% on the bloat test. + const detail::value* values_; + const basic_format_arg* args_; + }; + + constexpr auto is_packed() const -> bool { + return (desc_ & detail::is_unpacked_bit) == 0; + } + constexpr auto has_named_args() const -> bool { + return (desc_ & detail::has_named_args_bit) != 0; + } + + FMT_CONSTEXPR auto type(int index) const -> detail::type { + int shift = index * detail::packed_arg_bits; + unsigned mask = (1 << detail::packed_arg_bits) - 1; + return static_cast((desc_ >> shift) & mask); + } + + template + using store = + detail::format_arg_store; + + public: + using format_arg = basic_format_arg; + + constexpr basic_format_args() : desc_(0), args_(nullptr) {} + + /// Constructs a `basic_format_args` object from `format_arg_store`. + template + constexpr FMT_ALWAYS_INLINE basic_format_args( + const store& s) + : desc_(DESC | (NUM_NAMED_ARGS != 0 ? +detail::has_named_args_bit : 0)), + values_(s.args) {} + + template detail::max_packed_args)> + constexpr basic_format_args(const store& s) + : desc_(DESC | (NUM_NAMED_ARGS != 0 ? +detail::has_named_args_bit : 0)), + args_(s.args) {} + + /// Constructs a `basic_format_args` object from a dynamic list of arguments. + constexpr basic_format_args(const format_arg* args, int count, + bool has_named = false) + : desc_(detail::is_unpacked_bit | detail::to_unsigned(count) | + (has_named ? +detail::has_named_args_bit : 0)), + args_(args) {} + + /// Returns the argument with the specified id. + FMT_CONSTEXPR auto get(int id) const -> format_arg { + auto arg = format_arg(); + if (!is_packed()) { + if (id < max_size()) arg = args_[id]; + return arg; + } + if (static_cast(id) >= detail::max_packed_args) return arg; + arg.type_ = type(id); + if (arg.type_ != detail::type::none_type) arg.value_ = values_[id]; + return arg; + } + + template + auto get(basic_string_view name) const -> format_arg { + int id = get_id(name); + return id >= 0 ? get(id) : format_arg(); + } + + template + FMT_CONSTEXPR auto get_id(basic_string_view name) const -> int { + if (!has_named_args()) return -1; + const auto& named_args = + (is_packed() ? values_[-1] : args_[-1].value_).named_args; + for (size_t i = 0; i < named_args.size; ++i) { + if (named_args.data[i].name == name) return named_args.data[i].id; + } + return -1; + } + + auto max_size() const -> int { + unsigned long long max_packed = detail::max_packed_args; + return static_cast(is_packed() ? max_packed + : desc_ & ~detail::is_unpacked_bit); + } +}; + +// A formatting context. +class context { + private: + appender out_; + format_args args_; + FMT_NO_UNIQUE_ADDRESS locale_ref loc_; + + public: + using char_type = char; ///< The character type for the output. + using iterator = appender; + using format_arg = basic_format_arg; + enum { builtin_types = FMT_BUILTIN_TYPES }; + + /// Constructs a `context` object. References to the arguments are stored + /// in the object so make sure they have appropriate lifetimes. + FMT_CONSTEXPR context(iterator out, format_args args, locale_ref loc = {}) + : out_(out), args_(args), loc_(loc) {} + context(context&&) = default; + context(const context&) = delete; + void operator=(const context&) = delete; + + FMT_CONSTEXPR auto arg(int id) const -> format_arg { return args_.get(id); } + inline auto arg(string_view name) const -> format_arg { + return args_.get(name); + } + FMT_CONSTEXPR auto arg_id(string_view name) const -> int { + return args_.get_id(name); + } + auto args() const -> const format_args& { return args_; } + + // Returns an iterator to the beginning of the output range. + FMT_CONSTEXPR auto out() const -> iterator { return out_; } + + // Advances the begin iterator to `it`. + FMT_CONSTEXPR void advance_to(iterator) {} + + FMT_CONSTEXPR auto locale() const -> locale_ref { return loc_; } +}; + +template struct runtime_format_string { + basic_string_view str; +}; + +/** + * Creates a runtime format string. + * + * **Example**: + * + * // Check format string at runtime instead of compile-time. + * fmt::print(fmt::runtime("{:d}"), "I am not a number"); + */ +inline auto runtime(string_view s) -> runtime_format_string<> { return {{s}}; } + +/// A compile-time format string. Use `format_string` in the public API to +/// prevent type deduction. +template struct fstring { + private: + static constexpr int num_static_named_args = + detail::count_static_named_args(); + + using checker = detail::format_string_checker< + char, static_cast(sizeof...(T)), num_static_named_args, + num_static_named_args != detail::count_named_args()>; + + using arg_pack = detail::arg_pack; + + public: + string_view str; + using t = fstring; + + // Reports a compile-time error if S is not a valid format string for T. + template + FMT_CONSTEVAL FMT_ALWAYS_INLINE fstring(const char (&s)[N]) : str(s, N - 1) { + using namespace detail; + static_assert(count<(is_view>::value && + std::is_reference::value)...>() == 0, + "passing views as lvalues is disallowed"); + if (FMT_USE_CONSTEVAL) parse_format_string(s, checker(s, arg_pack())); +#ifdef FMT_ENFORCE_COMPILE_STRING + static_assert( + FMT_USE_CONSTEVAL && sizeof(s) != 0, + "FMT_ENFORCE_COMPILE_STRING requires format strings to use FMT_STRING"); +#endif + } + template ::value)> + FMT_CONSTEVAL FMT_ALWAYS_INLINE fstring(const S& s) : str(s) { + auto sv = string_view(str); + if (FMT_USE_CONSTEVAL) + detail::parse_format_string(sv, checker(sv, arg_pack())); +#ifdef FMT_ENFORCE_COMPILE_STRING + static_assert( + FMT_USE_CONSTEVAL && sizeof(s) != 0, + "FMT_ENFORCE_COMPILE_STRING requires format strings to use FMT_STRING"); +#endif + } + template ::value&& + std::is_same::value)> + FMT_ALWAYS_INLINE fstring(const S&) : str(S()) { + FMT_CONSTEXPR auto sv = string_view(S()); + FMT_CONSTEXPR int unused = + (parse_format_string(sv, checker(sv, arg_pack())), 0); + detail::ignore_unused(unused); + } + fstring(runtime_format_string<> fmt) : str(fmt.str) {} + + // Returning by reference generates better code in debug mode. + FMT_ALWAYS_INLINE operator const string_view&() const { return str; } + auto get() const -> string_view { return str; } +}; + +template using format_string = typename fstring::t; + +template +using is_formattable = bool_constant::value, int*, T>, Char>, + void>::value>; +#ifdef __cpp_concepts +template +concept formattable = is_formattable, Char>::value; +#endif + +// A formatter specialization for natively supported types. +template +struct formatter::value != + detail::type::custom_type>> + : detail::native_formatter::value> { +}; + +/** + * Constructs an object that stores references to arguments and can be + * implicitly converted to `format_args`. `Context` can be omitted in which case + * it defaults to `context`. See `arg` for lifetime considerations. + */ +// Take arguments by lvalue references to avoid some lifetime issues, e.g. +// auto args = make_format_args(std::string()); +template (), + unsigned long long DESC = detail::make_descriptor()> +constexpr FMT_ALWAYS_INLINE auto make_format_args(T&... args) + -> detail::format_arg_store { + // Suppress warnings for pathological types convertible to detail::value. + FMT_PRAGMA_GCC(diagnostic ignored "-Wconversion") + return {{args...}}; +} + +template +using vargs = + detail::format_arg_store(), + detail::make_descriptor()>; + +/** + * Returns a named argument to be used in a formatting function. + * It should only be used in a call to a formatting function. + * + * **Example**: + * + * fmt::print("The answer is {answer}.", fmt::arg("answer", 42)); + */ +template +inline auto arg(const Char* name, const T& arg) -> detail::named_arg { + return {name, arg}; +} + +/// Formats a string and writes the output to `out`. +template , + char>::value)> +auto vformat_to(OutputIt&& out, string_view fmt, format_args args) + -> remove_cvref_t { + auto&& buf = detail::get_buffer(out); + detail::vformat_to(buf, fmt, args, {}); + return detail::get_iterator(buf, out); +} + +/** + * Formats `args` according to specifications in `fmt`, writes the result to + * the output iterator `out` and returns the iterator past the end of the output + * range. `format_to` does not append a terminating null character. + * + * **Example**: + * + * auto out = std::vector(); + * fmt::format_to(std::back_inserter(out), "{}", 42); + */ +template , + char>::value)> +FMT_INLINE auto format_to(OutputIt&& out, format_string fmt, T&&... args) + -> remove_cvref_t { + return vformat_to(out, fmt.str, vargs{{args...}}); +} + +template struct format_to_n_result { + /// Iterator past the end of the output range. + OutputIt out; + /// Total (not truncated) output size. + size_t size; +}; + +template ::value)> +auto vformat_to_n(OutputIt out, size_t n, string_view fmt, format_args args) + -> format_to_n_result { + using traits = detail::fixed_buffer_traits; + auto buf = detail::iterator_buffer(out, n); + detail::vformat_to(buf, fmt, args, {}); + return {buf.out(), buf.count()}; +} + +/** + * Formats `args` according to specifications in `fmt`, writes up to `n` + * characters of the result to the output iterator `out` and returns the total + * (not truncated) output size and the iterator past the end of the output + * range. `format_to_n` does not append a terminating null character. + */ +template ::value)> +FMT_INLINE auto format_to_n(OutputIt out, size_t n, format_string fmt, + T&&... args) -> format_to_n_result { + return vformat_to_n(out, n, fmt.str, vargs{{args...}}); +} + +struct format_to_result { + /// Pointer to just after the last successful write in the array. + char* out; + /// Specifies if the output was truncated. + bool truncated; + + FMT_CONSTEXPR operator char*() const { + // Report truncation to prevent silent data loss. + if (truncated) report_error("output is truncated"); + return out; + } +}; + +template +auto vformat_to(char (&out)[N], string_view fmt, format_args args) + -> format_to_result { + auto result = vformat_to_n(out, N, fmt, args); + return {result.out, result.size > N}; +} + +template +FMT_INLINE auto format_to(char (&out)[N], format_string fmt, T&&... args) + -> format_to_result { + auto result = vformat_to_n(out, N, fmt.str, vargs{{args...}}); + return {result.out, result.size > N}; +} + +/// Returns the number of chars in the output of `format(fmt, args...)`. +template +FMT_NODISCARD FMT_INLINE auto formatted_size(format_string fmt, + T&&... args) -> size_t { + auto buf = detail::counting_buffer<>(); + detail::vformat_to(buf, fmt.str, vargs{{args...}}, {}); + return buf.count(); +} + +FMT_API void vprint(string_view fmt, format_args args); +FMT_API void vprint(FILE* f, string_view fmt, format_args args); +FMT_API void vprintln(FILE* f, string_view fmt, format_args args); +FMT_API void vprint_buffered(FILE* f, string_view fmt, format_args args); + +/** + * Formats `args` according to specifications in `fmt` and writes the output + * to `stdout`. + * + * **Example**: + * + * fmt::print("The answer is {}.", 42); + */ +template +FMT_INLINE void print(format_string fmt, T&&... args) { + vargs va = {{args...}}; + if (detail::const_check(!detail::use_utf8)) + return detail::vprint_mojibake(stdout, fmt.str, va, false); + return detail::is_locking() ? vprint_buffered(stdout, fmt.str, va) + : vprint(fmt.str, va); +} + +/** + * Formats `args` according to specifications in `fmt` and writes the + * output to the file `f`. + * + * **Example**: + * + * fmt::print(stderr, "Don't {}!", "panic"); + */ +template +FMT_INLINE void print(FILE* f, format_string fmt, T&&... args) { + vargs va = {{args...}}; + if (detail::const_check(!detail::use_utf8)) + return detail::vprint_mojibake(f, fmt.str, va, false); + return detail::is_locking() ? vprint_buffered(f, fmt.str, va) + : vprint(f, fmt.str, va); +} + +/// Formats `args` according to specifications in `fmt` and writes the output +/// to the file `f` followed by a newline. +template +FMT_INLINE void println(FILE* f, format_string fmt, T&&... args) { + vargs va = {{args...}}; + return detail::const_check(detail::use_utf8) + ? vprintln(f, fmt.str, va) + : detail::vprint_mojibake(f, fmt.str, va, true); +} + +/// Formats `args` according to specifications in `fmt` and writes the output +/// to `stdout` followed by a newline. +template +FMT_INLINE void println(format_string fmt, T&&... args) { + return fmt::println(stdout, fmt, static_cast(args)...); +} + +FMT_PRAGMA_GCC(diagnostic pop) +FMT_PRAGMA_CLANG(diagnostic pop) +FMT_PRAGMA_GCC(pop_options) +FMT_END_EXPORT +FMT_END_NAMESPACE + +#ifdef FMT_HEADER_ONLY +# include "format.h" +#endif +#endif // FMT_BASE_H_ diff --git a/Source/ThirdParty/spdlog/fmt/bundled/chrono.h b/Source/ThirdParty/spdlog/fmt/bundled/chrono.h index 57ce9ef30..9fbeeed67 100644 --- a/Source/ThirdParty/spdlog/fmt/bundled/chrono.h +++ b/Source/ThirdParty/spdlog/fmt/bundled/chrono.h @@ -8,189 +8,596 @@ #ifndef FMT_CHRONO_H_ #define FMT_CHRONO_H_ +#ifndef FMT_MODULE +# include +# include +# include // std::isfinite +# include // std::memcpy +# include +# include +# include +# include +# include +#endif + #include "format.h" -#include "locale.h" -#include -#include -#include -#include +FMT_BEGIN_NAMESPACE -// enable safe chrono durations, unless explicitly disabled +// Enable safe chrono durations, unless explicitly disabled. #ifndef FMT_SAFE_DURATION_CAST # define FMT_SAFE_DURATION_CAST 1 #endif - #if FMT_SAFE_DURATION_CAST -# include "safe-duration-cast.h" + +// For conversion between std::chrono::durations without undefined +// behaviour or erroneous results. +// This is a stripped down version of duration_cast, for inclusion in fmt. +// See https://github.com/pauldreik/safe_duration_cast +// +// Copyright Paul Dreik 2019 +namespace safe_duration_cast { + +// DEPRECATED! +template ::value && + std::numeric_limits::is_signed == + std::numeric_limits::is_signed)> +FMT_CONSTEXPR auto lossless_integral_conversion(const From from, int& ec) + -> To { + ec = 0; + using F = std::numeric_limits; + using T = std::numeric_limits; + static_assert(F::is_integer, "From must be integral"); + static_assert(T::is_integer, "To must be integral"); + + // A and B are both signed, or both unsigned. + if (detail::const_check(F::digits <= T::digits)) { + // From fits in To without any problem. + } else { + // From does not always fit in To, resort to a dynamic check. + if (from < (T::min)() || from > (T::max)()) { + // outside range. + ec = 1; + return {}; + } + } + return static_cast(from); +} + +/// Converts From to To, without loss. If the dynamic value of from +/// can't be converted to To without loss, ec is set. +template ::value && + std::numeric_limits::is_signed != + std::numeric_limits::is_signed)> +FMT_CONSTEXPR auto lossless_integral_conversion(const From from, int& ec) + -> To { + ec = 0; + using F = std::numeric_limits; + using T = std::numeric_limits; + static_assert(F::is_integer, "From must be integral"); + static_assert(T::is_integer, "To must be integral"); + + if (detail::const_check(F::is_signed && !T::is_signed)) { + // From may be negative, not allowed! + if (fmt::detail::is_negative(from)) { + ec = 1; + return {}; + } + // From is positive. Can it always fit in To? + if (detail::const_check(F::digits > T::digits) && + from > static_cast(detail::max_value())) { + ec = 1; + return {}; + } + } + + if (detail::const_check(!F::is_signed && T::is_signed && + F::digits >= T::digits) && + from > static_cast(detail::max_value())) { + ec = 1; + return {}; + } + return static_cast(from); // Lossless conversion. +} + +template ::value)> +FMT_CONSTEXPR auto lossless_integral_conversion(const From from, int& ec) + -> To { + ec = 0; + return from; +} // function + +// clang-format off +/** + * converts From to To if possible, otherwise ec is set. + * + * input | output + * ---------------------------------|--------------- + * NaN | NaN + * Inf | Inf + * normal, fits in output | converted (possibly lossy) + * normal, does not fit in output | ec is set + * subnormal | best effort + * -Inf | -Inf + */ +// clang-format on +template ::value)> +FMT_CONSTEXPR auto safe_float_conversion(const From from, int& ec) -> To { + ec = 0; + using T = std::numeric_limits; + static_assert(std::is_floating_point::value, "From must be floating"); + static_assert(std::is_floating_point::value, "To must be floating"); + + // catch the only happy case + if (std::isfinite(from)) { + if (from >= T::lowest() && from <= (T::max)()) { + return static_cast(from); + } + // not within range. + ec = 1; + return {}; + } + + // nan and inf will be preserved + return static_cast(from); +} // function + +template ::value)> +FMT_CONSTEXPR auto safe_float_conversion(const From from, int& ec) -> To { + ec = 0; + static_assert(std::is_floating_point::value, "From must be floating"); + return from; +} + +/// Safe duration_cast between floating point durations +template ::value), + FMT_ENABLE_IF(std::is_floating_point::value)> +auto safe_duration_cast(std::chrono::duration from, + int& ec) -> To { + using From = std::chrono::duration; + ec = 0; + + // the basic idea is that we need to convert from count() in the from type + // to count() in the To type, by multiplying it with this: + struct Factor + : std::ratio_divide {}; + + static_assert(Factor::num > 0, "num must be positive"); + static_assert(Factor::den > 0, "den must be positive"); + + // the conversion is like this: multiply from.count() with Factor::num + // /Factor::den and convert it to To::rep, all this without + // overflow/underflow. let's start by finding a suitable type that can hold + // both To, From and Factor::num + using IntermediateRep = + typename std::common_type::type; + + // force conversion of From::rep -> IntermediateRep to be safe, + // even if it will never happen be narrowing in this context. + IntermediateRep count = + safe_float_conversion(from.count(), ec); + if (ec) { + return {}; + } + + // multiply with Factor::num without overflow or underflow + if (detail::const_check(Factor::num != 1)) { + constexpr auto max1 = detail::max_value() / + static_cast(Factor::num); + if (count > max1) { + ec = 1; + return {}; + } + constexpr auto min1 = std::numeric_limits::lowest() / + static_cast(Factor::num); + if (count < min1) { + ec = 1; + return {}; + } + count *= static_cast(Factor::num); + } + + // this can't go wrong, right? den>0 is checked earlier. + if (detail::const_check(Factor::den != 1)) { + using common_t = typename std::common_type::type; + count /= static_cast(Factor::den); + } + + // convert to the to type, safely + using ToRep = typename To::rep; + + const ToRep tocount = safe_float_conversion(count, ec); + if (ec) { + return {}; + } + return To{tocount}; +} +} // namespace safe_duration_cast #endif -FMT_BEGIN_NAMESPACE +namespace detail { + +// Check if std::chrono::utc_time is available. +#ifdef FMT_USE_UTC_TIME +// Use the provided definition. +#elif defined(__cpp_lib_chrono) +# define FMT_USE_UTC_TIME (__cpp_lib_chrono >= 201907L) +#else +# define FMT_USE_UTC_TIME 0 +#endif +#if FMT_USE_UTC_TIME +using utc_clock = std::chrono::utc_clock; +#else +struct utc_clock { + template void to_sys(T); +}; +#endif + +// Check if std::chrono::local_time is available. +#ifdef FMT_USE_LOCAL_TIME +// Use the provided definition. +#elif defined(__cpp_lib_chrono) +# define FMT_USE_LOCAL_TIME (__cpp_lib_chrono >= 201907L) +#else +# define FMT_USE_LOCAL_TIME 0 +#endif +#if FMT_USE_LOCAL_TIME +using local_t = std::chrono::local_t; +#else +struct local_t {}; +#endif + +} // namespace detail + +template +using sys_time = std::chrono::time_point; + +template +using utc_time = std::chrono::time_point; + +template +using local_time = std::chrono::time_point; + +namespace detail { // Prevents expansion of a preceding token as a function-style macro. // Usage: f FMT_NOMACRO() #define FMT_NOMACRO -namespace internal { -inline null<> localtime_r FMT_NOMACRO(...) { return null<>(); } -inline null<> localtime_s(...) { return null<>(); } -inline null<> gmtime_r(...) { return null<>(); } -inline null<> gmtime_s(...) { return null<>(); } -} // namespace internal +template struct null {}; +inline auto gmtime_r(...) -> null<> { return null<>(); } +inline auto gmtime_s(...) -> null<> { return null<>(); } -// Thread-safe replacement for std::localtime -inline std::tm localtime(std::time_t time) { - struct dispatcher { - std::time_t time_; - std::tm tm_; +// It is defined here and not in ostream.h because the latter has expensive +// includes. +template class formatbuf : public StreamBuf { + private: + using char_type = typename StreamBuf::char_type; + using streamsize = decltype(std::declval().sputn(nullptr, 0)); + using int_type = typename StreamBuf::int_type; + using traits_type = typename StreamBuf::traits_type; - dispatcher(std::time_t t) : time_(t) {} + buffer& buffer_; - bool run() { - using namespace fmt::internal; - return handle(localtime_r(&time_, &tm_)); - } + public: + explicit formatbuf(buffer& buf) : buffer_(buf) {} + + protected: + // The put area is always empty. This makes the implementation simpler and has + // the advantage that the streambuf and the buffer are always in sync and + // sputc never writes into uninitialized memory. A disadvantage is that each + // call to sputc always results in a (virtual) call to overflow. There is no + // disadvantage here for sputn since this always results in a call to xsputn. + + auto overflow(int_type ch) -> int_type override { + if (!traits_type::eq_int_type(ch, traits_type::eof())) + buffer_.push_back(static_cast(ch)); + return ch; + } - bool handle(std::tm* tm) { return tm != nullptr; } + auto xsputn(const char_type* s, streamsize count) -> streamsize override { + buffer_.append(s, s + count); + return count; + } +}; - bool handle(internal::null<>) { - using namespace fmt::internal; - return fallback(localtime_s(&tm_, &time_)); - } +inline auto get_classic_locale() -> const std::locale& { + static const auto& locale = std::locale::classic(); + return locale; +} - bool fallback(int res) { return res == 0; } +template struct codecvt_result { + static constexpr size_t max_size = 32; + CodeUnit buf[max_size]; + CodeUnit* end; +}; -#if !FMT_MSC_VER - bool fallback(internal::null<>) { - using namespace fmt::internal; - std::tm* tm = std::localtime(&time_); - if (tm) tm_ = *tm; - return tm != nullptr; - } +template +void write_codecvt(codecvt_result& out, string_view in, + const std::locale& loc) { + FMT_PRAGMA_CLANG(diagnostic push) + FMT_PRAGMA_CLANG(diagnostic ignored "-Wdeprecated") + auto& f = std::use_facet>(loc); + FMT_PRAGMA_CLANG(diagnostic pop) + auto mb = std::mbstate_t(); + const char* from_next = nullptr; + auto result = f.in(mb, in.begin(), in.end(), from_next, std::begin(out.buf), + std::end(out.buf), out.end); + if (result != std::codecvt_base::ok) + FMT_THROW(format_error("failed to format time")); +} + +template +auto write_encoded_tm_str(OutputIt out, string_view in, const std::locale& loc) + -> OutputIt { + if (const_check(detail::use_utf8) && loc != get_classic_locale()) { + // char16_t and char32_t codecvts are broken in MSVC (linkage errors) and + // gcc-4. +#if FMT_MSC_VERSION != 0 || \ + (defined(__GLIBCXX__) && \ + (!defined(_GLIBCXX_USE_DUAL_ABI) || _GLIBCXX_USE_DUAL_ABI == 0)) + // The _GLIBCXX_USE_DUAL_ABI macro is always defined in libstdc++ from gcc-5 + // and newer. + using code_unit = wchar_t; +#else + using code_unit = char32_t; #endif - }; - dispatcher lt(time); - // Too big time values may be unsupported. - if (!lt.run()) FMT_THROW(format_error("time_t value out of range")); - return lt.tm_; + + using unit_t = codecvt_result; + unit_t unit; + write_codecvt(unit, in, loc); + // In UTF-8 is used one to four one-byte code units. + auto u = + to_utf8>(); + if (!u.convert({unit.buf, to_unsigned(unit.end - unit.buf)})) + FMT_THROW(format_error("failed to format time")); + return copy(u.c_str(), u.c_str() + u.size(), out); + } + return copy(in.data(), in.data() + in.size(), out); } -// Thread-safe replacement for std::gmtime -inline std::tm gmtime(std::time_t time) { +template ::value)> +auto write_tm_str(OutputIt out, string_view sv, const std::locale& loc) + -> OutputIt { + codecvt_result unit; + write_codecvt(unit, sv, loc); + return copy(unit.buf, unit.end, out); +} + +template ::value)> +auto write_tm_str(OutputIt out, string_view sv, const std::locale& loc) + -> OutputIt { + return write_encoded_tm_str(out, sv, loc); +} + +template +inline void do_write(buffer& buf, const std::tm& time, + const std::locale& loc, char format, char modifier) { + auto&& format_buf = formatbuf>(buf); + auto&& os = std::basic_ostream(&format_buf); + os.imbue(loc); + const auto& facet = std::use_facet>(loc); + auto end = facet.put(os, os, Char(' '), &time, format, modifier); + if (end.failed()) FMT_THROW(format_error("failed to format time")); +} + +template ::value)> +auto write(OutputIt out, const std::tm& time, const std::locale& loc, + char format, char modifier = 0) -> OutputIt { + auto&& buf = get_buffer(out); + do_write(buf, time, loc, format, modifier); + return get_iterator(buf, out); +} + +template ::value)> +auto write(OutputIt out, const std::tm& time, const std::locale& loc, + char format, char modifier = 0) -> OutputIt { + auto&& buf = basic_memory_buffer(); + do_write(buf, time, loc, format, modifier); + return write_encoded_tm_str(out, string_view(buf.data(), buf.size()), loc); +} + +template +using is_similar_arithmetic_type = + bool_constant<(std::is_integral::value && std::is_integral::value) || + (std::is_floating_point::value && + std::is_floating_point::value)>; + +FMT_NORETURN inline void throw_duration_error() { + FMT_THROW(format_error("cannot format duration")); +} + +// Cast one integral duration to another with an overflow check. +template ::value&& + std::is_integral::value)> +auto duration_cast(std::chrono::duration from) -> To { +#if !FMT_SAFE_DURATION_CAST + return std::chrono::duration_cast(from); +#else + // The conversion factor: to.count() == factor * from.count(). + using factor = std::ratio_divide; + + using common_rep = typename std::common_type::type; + common_rep count = from.count(); // This conversion is lossless. + + // Multiply from.count() by factor and check for overflow. + if (const_check(factor::num != 1)) { + if (count > max_value() / factor::num) throw_duration_error(); + const auto min = (std::numeric_limits::min)() / factor::num; + if (const_check(!std::is_unsigned::value) && count < min) + throw_duration_error(); + count *= factor::num; + } + if (const_check(factor::den != 1)) count /= factor::den; + int ec = 0; + auto to = + To(safe_duration_cast::lossless_integral_conversion( + count, ec)); + if (ec) throw_duration_error(); + return to; +#endif +} + +template ::value&& + std::is_floating_point::value)> +auto duration_cast(std::chrono::duration from) -> To { +#if FMT_SAFE_DURATION_CAST + // Preserve infinity and NaN. + if (!isfinite(from.count())) return static_cast(from.count()); + // Throwing version of safe_duration_cast is only available for + // integer to integer or float to float casts. + int ec; + To to = safe_duration_cast::safe_duration_cast(from, ec); + if (ec) throw_duration_error(); + return to; +#else + // Standard duration cast, may overflow. + return std::chrono::duration_cast(from); +#endif +} + +template ::value)> +auto duration_cast(std::chrono::duration from) -> To { + // Mixed integer <-> float cast is not supported by safe duration_cast. + return std::chrono::duration_cast(from); +} + +template +auto to_time_t(sys_time time_point) -> std::time_t { + // Cannot use std::chrono::system_clock::to_time_t since this would first + // require a cast to std::chrono::system_clock::time_point, which could + // overflow. + return detail::duration_cast>( + time_point.time_since_epoch()) + .count(); +} + +} // namespace detail + +FMT_BEGIN_EXPORT + +/** + * Converts given time since epoch as `std::time_t` value into calendar time, + * expressed in Coordinated Universal Time (UTC). Unlike `std::gmtime`, this + * function is thread-safe on most platforms. + */ +inline auto gmtime(std::time_t time) -> std::tm { struct dispatcher { std::time_t time_; std::tm tm_; - dispatcher(std::time_t t) : time_(t) {} + inline dispatcher(std::time_t t) : time_(t) {} - bool run() { - using namespace fmt::internal; + inline auto run() -> bool { + using namespace fmt::detail; return handle(gmtime_r(&time_, &tm_)); } - bool handle(std::tm* tm) { return tm != nullptr; } + inline auto handle(std::tm* tm) -> bool { return tm != nullptr; } - bool handle(internal::null<>) { - using namespace fmt::internal; + inline auto handle(detail::null<>) -> bool { + using namespace fmt::detail; return fallback(gmtime_s(&tm_, &time_)); } - bool fallback(int res) { return res == 0; } + inline auto fallback(int res) -> bool { return res == 0; } -#if !FMT_MSC_VER - bool fallback(internal::null<>) { +#if !FMT_MSC_VERSION + inline auto fallback(detail::null<>) -> bool { std::tm* tm = std::gmtime(&time_); if (tm) tm_ = *tm; return tm != nullptr; } #endif }; - dispatcher gt(time); + auto gt = dispatcher(time); // Too big time values may be unsupported. if (!gt.run()) FMT_THROW(format_error("time_t value out of range")); return gt.tm_; } -namespace internal { -inline std::size_t strftime(char* str, std::size_t count, const char* format, - const std::tm* time) { - return std::strftime(str, count, format, time); -} - -inline std::size_t strftime(wchar_t* str, std::size_t count, - const wchar_t* format, const std::tm* time) { - return std::wcsftime(str, count, format, time); +template +inline auto gmtime(sys_time time_point) -> std::tm { + return gmtime(detail::to_time_t(time_point)); } -} // namespace internal - -template struct formatter { - template - auto parse(ParseContext& ctx) -> decltype(ctx.begin()) { - auto it = ctx.begin(); - if (it != ctx.end() && *it == ':') ++it; - auto end = it; - while (end != ctx.end() && *end != '}') ++end; - tm_format.reserve(internal::to_unsigned(end - it + 1)); - tm_format.append(it, end); - tm_format.push_back('\0'); - return end; - } - template - auto format(const std::tm& tm, FormatContext& ctx) -> decltype(ctx.out()) { - basic_memory_buffer buf; - std::size_t start = buf.size(); - for (;;) { - std::size_t size = buf.capacity() - start; - std::size_t count = - internal::strftime(&buf[start], size, &tm_format[0], &tm); - if (count != 0) { - buf.resize(start + count); - break; - } - if (size >= tm_format.size() * 256) { - // If the buffer is 256 times larger than the format string, assume - // that `strftime` gives an empty result. There doesn't seem to be a - // better way to distinguish the two cases: - // https://github.com/fmtlib/fmt/issues/367 - break; - } - const std::size_t MIN_GROWTH = 10; - buf.reserve(buf.capacity() + (size > MIN_GROWTH ? size : MIN_GROWTH)); - } - return std::copy(buf.begin(), buf.end(), ctx.out()); +namespace detail { + +// Writes two-digit numbers a, b and c separated by sep to buf. +// The method by Pavel Novikov based on +// https://johnnylee-sde.github.io/Fast-unsigned-integer-to-time-string/. +inline void write_digit2_separated(char* buf, unsigned a, unsigned b, + unsigned c, char sep) { + unsigned long long digits = + a | (b << 24) | (static_cast(c) << 48); + // Convert each value to BCD. + // We have x = a * 10 + b and we want to convert it to BCD y = a * 16 + b. + // The difference is + // y - x = a * 6 + // a can be found from x: + // a = floor(x / 10) + // then + // y = x + a * 6 = x + floor(x / 10) * 6 + // floor(x / 10) is (x * 205) >> 11 (needs 16 bits). + digits += (((digits * 205) >> 11) & 0x000f00000f00000f) * 6; + // Put low nibbles to high bytes and high nibbles to low bytes. + digits = ((digits & 0x00f00000f00000f0) >> 4) | + ((digits & 0x000f00000f00000f) << 8); + auto usep = static_cast(sep); + // Add ASCII '0' to each digit byte and insert separators. + digits |= 0x3030003030003030 | (usep << 16) | (usep << 40); + + constexpr size_t len = 8; + if (const_check(is_big_endian())) { + char tmp[len]; + std::memcpy(tmp, &digits, len); + std::reverse_copy(tmp, tmp + len, buf); + } else { + std::memcpy(buf, &digits, len); } +} - basic_memory_buffer tm_format; -}; - -namespace internal { -template FMT_CONSTEXPR const char* get_units() { +template +FMT_CONSTEXPR inline auto get_units() -> const char* { + if (std::is_same::value) return "as"; + if (std::is_same::value) return "fs"; + if (std::is_same::value) return "ps"; + if (std::is_same::value) return "ns"; + if (std::is_same::value) + return detail::use_utf8 ? "µs" : "us"; + if (std::is_same::value) return "ms"; + if (std::is_same::value) return "cs"; + if (std::is_same::value) return "ds"; + if (std::is_same>::value) return "s"; + if (std::is_same::value) return "das"; + if (std::is_same::value) return "hs"; + if (std::is_same::value) return "ks"; + if (std::is_same::value) return "Ms"; + if (std::is_same::value) return "Gs"; + if (std::is_same::value) return "Ts"; + if (std::is_same::value) return "Ps"; + if (std::is_same::value) return "Es"; + if (std::is_same>::value) return "min"; + if (std::is_same>::value) return "h"; + if (std::is_same>::value) return "d"; return nullptr; } -template <> FMT_CONSTEXPR const char* get_units() { return "as"; } -template <> FMT_CONSTEXPR const char* get_units() { return "fs"; } -template <> FMT_CONSTEXPR const char* get_units() { return "ps"; } -template <> FMT_CONSTEXPR const char* get_units() { return "ns"; } -template <> FMT_CONSTEXPR const char* get_units() { return "µs"; } -template <> FMT_CONSTEXPR const char* get_units() { return "ms"; } -template <> FMT_CONSTEXPR const char* get_units() { return "cs"; } -template <> FMT_CONSTEXPR const char* get_units() { return "ds"; } -template <> FMT_CONSTEXPR const char* get_units>() { return "s"; } -template <> FMT_CONSTEXPR const char* get_units() { return "das"; } -template <> FMT_CONSTEXPR const char* get_units() { return "hs"; } -template <> FMT_CONSTEXPR const char* get_units() { return "ks"; } -template <> FMT_CONSTEXPR const char* get_units() { return "Ms"; } -template <> FMT_CONSTEXPR const char* get_units() { return "Gs"; } -template <> FMT_CONSTEXPR const char* get_units() { return "Ts"; } -template <> FMT_CONSTEXPR const char* get_units() { return "Ps"; } -template <> FMT_CONSTEXPR const char* get_units() { return "Es"; } -template <> FMT_CONSTEXPR const char* get_units>() { - return "m"; -} -template <> FMT_CONSTEXPR const char* get_units>() { - return "h"; -} enum class numeric_system { standard, @@ -198,13 +605,37 @@ enum class numeric_system { alternative }; +// Glibc extensions for formatting numeric values. +enum class pad_type { + // Pad a numeric result string with zeros (the default). + zero, + // Do not pad a numeric result string. + none, + // Pad a numeric result string with spaces. + space, +}; + +template +auto write_padding(OutputIt out, pad_type pad, int width) -> OutputIt { + if (pad == pad_type::none) return out; + return detail::fill_n(out, width, pad == pad_type::space ? ' ' : '0'); +} + +template +auto write_padding(OutputIt out, pad_type pad) -> OutputIt { + if (pad != pad_type::none) *out++ = pad == pad_type::space ? ' ' : '0'; + return out; +} + // Parses a put_time-like format string and invokes handler actions. template -FMT_CONSTEXPR const Char* parse_chrono_format(const Char* begin, - const Char* end, - Handler&& handler) { +FMT_CONSTEXPR auto parse_chrono_format(const Char* begin, const Char* end, + Handler&& handler) -> const Char* { + if (begin == end || *begin == '}') return begin; + if (*begin != '%') FMT_THROW(format_error("invalid format")); auto ptr = begin; while (ptr != end) { + pad_type pad = pad_type::zero; auto c = *ptr; if (c == '}') break; if (c != '%') { @@ -214,217 +645,867 @@ FMT_CONSTEXPR const Char* parse_chrono_format(const Char* begin, if (begin != ptr) handler.on_text(begin, ptr); ++ptr; // consume '%' if (ptr == end) FMT_THROW(format_error("invalid format")); - c = *ptr++; + c = *ptr; switch (c) { - case '%': - handler.on_text(ptr - 1, ptr); + case '_': + pad = pad_type::space; + ++ptr; + break; + case '-': + pad = pad_type::none; + ++ptr; break; + } + if (ptr == end) FMT_THROW(format_error("invalid format")); + c = *ptr++; + switch (c) { + case '%': handler.on_text(ptr - 1, ptr); break; case 'n': { - const char newline[] = "\n"; + const Char newline[] = {'\n'}; handler.on_text(newline, newline + 1); break; } case 't': { - const char tab[] = "\t"; + const Char tab[] = {'\t'}; handler.on_text(tab, tab + 1); break; } + // Year: + case 'Y': handler.on_year(numeric_system::standard, pad); break; + case 'y': handler.on_short_year(numeric_system::standard); break; + case 'C': handler.on_century(numeric_system::standard); break; + case 'G': handler.on_iso_week_based_year(); break; + case 'g': handler.on_iso_week_based_short_year(); break; // Day of the week: - case 'a': - handler.on_abbr_weekday(); - break; - case 'A': - handler.on_full_weekday(); - break; - case 'w': - handler.on_dec0_weekday(numeric_system::standard); - break; - case 'u': - handler.on_dec1_weekday(numeric_system::standard); - break; + case 'a': handler.on_abbr_weekday(); break; + case 'A': handler.on_full_weekday(); break; + case 'w': handler.on_dec0_weekday(numeric_system::standard); break; + case 'u': handler.on_dec1_weekday(numeric_system::standard); break; // Month: case 'b': - handler.on_abbr_month(); + case 'h': handler.on_abbr_month(); break; + case 'B': handler.on_full_month(); break; + case 'm': handler.on_dec_month(numeric_system::standard, pad); break; + // Day of the year/month: + case 'U': + handler.on_dec0_week_of_year(numeric_system::standard, pad); break; - case 'B': - handler.on_full_month(); + case 'W': + handler.on_dec1_week_of_year(numeric_system::standard, pad); break; - // Hour, minute, second: - case 'H': - handler.on_24_hour(numeric_system::standard); - break; - case 'I': - handler.on_12_hour(numeric_system::standard); - break; - case 'M': - handler.on_minute(numeric_system::standard); - break; - case 'S': - handler.on_second(numeric_system::standard); + case 'V': handler.on_iso_week_of_year(numeric_system::standard, pad); break; + case 'j': handler.on_day_of_year(pad); break; + case 'd': handler.on_day_of_month(numeric_system::standard, pad); break; + case 'e': + handler.on_day_of_month(numeric_system::standard, pad_type::space); break; + // Hour, minute, second: + case 'H': handler.on_24_hour(numeric_system::standard, pad); break; + case 'I': handler.on_12_hour(numeric_system::standard, pad); break; + case 'M': handler.on_minute(numeric_system::standard, pad); break; + case 'S': handler.on_second(numeric_system::standard, pad); break; // Other: - case 'c': - handler.on_datetime(numeric_system::standard); - break; - case 'x': - handler.on_loc_date(numeric_system::standard); - break; - case 'X': - handler.on_loc_time(numeric_system::standard); - break; - case 'D': - handler.on_us_date(); - break; - case 'F': - handler.on_iso_date(); - break; - case 'r': - handler.on_12_hour_time(); - break; - case 'R': - handler.on_24_hour_time(); - break; - case 'T': - handler.on_iso_time(); - break; - case 'p': - handler.on_am_pm(); - break; - case 'Q': - handler.on_duration_value(); - break; - case 'q': - handler.on_duration_unit(); - break; - case 'z': - handler.on_utc_offset(); - break; - case 'Z': - handler.on_tz_name(); - break; + case 'c': handler.on_datetime(numeric_system::standard); break; + case 'x': handler.on_loc_date(numeric_system::standard); break; + case 'X': handler.on_loc_time(numeric_system::standard); break; + case 'D': handler.on_us_date(); break; + case 'F': handler.on_iso_date(); break; + case 'r': handler.on_12_hour_time(); break; + case 'R': handler.on_24_hour_time(); break; + case 'T': handler.on_iso_time(); break; + case 'p': handler.on_am_pm(); break; + case 'Q': handler.on_duration_value(); break; + case 'q': handler.on_duration_unit(); break; + case 'z': handler.on_utc_offset(numeric_system::standard); break; + case 'Z': handler.on_tz_name(); break; // Alternative representation: case 'E': { if (ptr == end) FMT_THROW(format_error("invalid format")); c = *ptr++; switch (c) { - case 'c': - handler.on_datetime(numeric_system::alternative); + case 'Y': handler.on_year(numeric_system::alternative, pad); break; + case 'y': handler.on_offset_year(); break; + case 'C': handler.on_century(numeric_system::alternative); break; + case 'c': handler.on_datetime(numeric_system::alternative); break; + case 'x': handler.on_loc_date(numeric_system::alternative); break; + case 'X': handler.on_loc_time(numeric_system::alternative); break; + case 'z': handler.on_utc_offset(numeric_system::alternative); break; + default: FMT_THROW(format_error("invalid format")); + } + break; + } + case 'O': + if (ptr == end) FMT_THROW(format_error("invalid format")); + c = *ptr++; + switch (c) { + case 'y': handler.on_short_year(numeric_system::alternative); break; + case 'm': handler.on_dec_month(numeric_system::alternative, pad); break; + case 'U': + handler.on_dec0_week_of_year(numeric_system::alternative, pad); + break; + case 'W': + handler.on_dec1_week_of_year(numeric_system::alternative, pad); + break; + case 'V': + handler.on_iso_week_of_year(numeric_system::alternative, pad); break; - case 'x': - handler.on_loc_date(numeric_system::alternative); + case 'd': + handler.on_day_of_month(numeric_system::alternative, pad); break; - case 'X': - handler.on_loc_time(numeric_system::alternative); + case 'e': + handler.on_day_of_month(numeric_system::alternative, pad_type::space); break; - default: - FMT_THROW(format_error("invalid format")); + case 'w': handler.on_dec0_weekday(numeric_system::alternative); break; + case 'u': handler.on_dec1_weekday(numeric_system::alternative); break; + case 'H': handler.on_24_hour(numeric_system::alternative, pad); break; + case 'I': handler.on_12_hour(numeric_system::alternative, pad); break; + case 'M': handler.on_minute(numeric_system::alternative, pad); break; + case 'S': handler.on_second(numeric_system::alternative, pad); break; + case 'z': handler.on_utc_offset(numeric_system::alternative); break; + default: FMT_THROW(format_error("invalid format")); + } + break; + default: FMT_THROW(format_error("invalid format")); + } + begin = ptr; + } + if (begin != ptr) handler.on_text(begin, ptr); + return ptr; +} + +template struct null_chrono_spec_handler { + FMT_CONSTEXPR void unsupported() { + static_cast(this)->unsupported(); + } + FMT_CONSTEXPR void on_year(numeric_system, pad_type) { unsupported(); } + FMT_CONSTEXPR void on_short_year(numeric_system) { unsupported(); } + FMT_CONSTEXPR void on_offset_year() { unsupported(); } + FMT_CONSTEXPR void on_century(numeric_system) { unsupported(); } + FMT_CONSTEXPR void on_iso_week_based_year() { unsupported(); } + FMT_CONSTEXPR void on_iso_week_based_short_year() { unsupported(); } + FMT_CONSTEXPR void on_abbr_weekday() { unsupported(); } + FMT_CONSTEXPR void on_full_weekday() { unsupported(); } + FMT_CONSTEXPR void on_dec0_weekday(numeric_system) { unsupported(); } + FMT_CONSTEXPR void on_dec1_weekday(numeric_system) { unsupported(); } + FMT_CONSTEXPR void on_abbr_month() { unsupported(); } + FMT_CONSTEXPR void on_full_month() { unsupported(); } + FMT_CONSTEXPR void on_dec_month(numeric_system, pad_type) { unsupported(); } + FMT_CONSTEXPR void on_dec0_week_of_year(numeric_system, pad_type) { + unsupported(); + } + FMT_CONSTEXPR void on_dec1_week_of_year(numeric_system, pad_type) { + unsupported(); + } + FMT_CONSTEXPR void on_iso_week_of_year(numeric_system, pad_type) { + unsupported(); + } + FMT_CONSTEXPR void on_day_of_year(pad_type) { unsupported(); } + FMT_CONSTEXPR void on_day_of_month(numeric_system, pad_type) { + unsupported(); + } + FMT_CONSTEXPR void on_24_hour(numeric_system) { unsupported(); } + FMT_CONSTEXPR void on_12_hour(numeric_system) { unsupported(); } + FMT_CONSTEXPR void on_minute(numeric_system) { unsupported(); } + FMT_CONSTEXPR void on_second(numeric_system) { unsupported(); } + FMT_CONSTEXPR void on_datetime(numeric_system) { unsupported(); } + FMT_CONSTEXPR void on_loc_date(numeric_system) { unsupported(); } + FMT_CONSTEXPR void on_loc_time(numeric_system) { unsupported(); } + FMT_CONSTEXPR void on_us_date() { unsupported(); } + FMT_CONSTEXPR void on_iso_date() { unsupported(); } + FMT_CONSTEXPR void on_12_hour_time() { unsupported(); } + FMT_CONSTEXPR void on_24_hour_time() { unsupported(); } + FMT_CONSTEXPR void on_iso_time() { unsupported(); } + FMT_CONSTEXPR void on_am_pm() { unsupported(); } + FMT_CONSTEXPR void on_duration_value() { unsupported(); } + FMT_CONSTEXPR void on_duration_unit() { unsupported(); } + FMT_CONSTEXPR void on_utc_offset(numeric_system) { unsupported(); } + FMT_CONSTEXPR void on_tz_name() { unsupported(); } +}; + +class tm_format_checker : public null_chrono_spec_handler { + private: + bool has_timezone_ = false; + + public: + constexpr explicit tm_format_checker(bool has_timezone) + : has_timezone_(has_timezone) {} + + FMT_NORETURN inline void unsupported() { + FMT_THROW(format_error("no format")); + } + + template + FMT_CONSTEXPR void on_text(const Char*, const Char*) {} + FMT_CONSTEXPR void on_year(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_short_year(numeric_system) {} + FMT_CONSTEXPR void on_offset_year() {} + FMT_CONSTEXPR void on_century(numeric_system) {} + FMT_CONSTEXPR void on_iso_week_based_year() {} + FMT_CONSTEXPR void on_iso_week_based_short_year() {} + FMT_CONSTEXPR void on_abbr_weekday() {} + FMT_CONSTEXPR void on_full_weekday() {} + FMT_CONSTEXPR void on_dec0_weekday(numeric_system) {} + FMT_CONSTEXPR void on_dec1_weekday(numeric_system) {} + FMT_CONSTEXPR void on_abbr_month() {} + FMT_CONSTEXPR void on_full_month() {} + FMT_CONSTEXPR void on_dec_month(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_dec0_week_of_year(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_dec1_week_of_year(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_iso_week_of_year(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_day_of_year(pad_type) {} + FMT_CONSTEXPR void on_day_of_month(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_24_hour(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_12_hour(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_minute(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_second(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_datetime(numeric_system) {} + FMT_CONSTEXPR void on_loc_date(numeric_system) {} + FMT_CONSTEXPR void on_loc_time(numeric_system) {} + FMT_CONSTEXPR void on_us_date() {} + FMT_CONSTEXPR void on_iso_date() {} + FMT_CONSTEXPR void on_12_hour_time() {} + FMT_CONSTEXPR void on_24_hour_time() {} + FMT_CONSTEXPR void on_iso_time() {} + FMT_CONSTEXPR void on_am_pm() {} + FMT_CONSTEXPR void on_utc_offset(numeric_system) { + if (!has_timezone_) FMT_THROW(format_error("no timezone")); + } + FMT_CONSTEXPR void on_tz_name() { + if (!has_timezone_) FMT_THROW(format_error("no timezone")); + } +}; + +inline auto tm_wday_full_name(int wday) -> const char* { + static constexpr const char* full_name_list[] = { + "Sunday", "Monday", "Tuesday", "Wednesday", + "Thursday", "Friday", "Saturday"}; + return wday >= 0 && wday <= 6 ? full_name_list[wday] : "?"; +} +inline auto tm_wday_short_name(int wday) -> const char* { + static constexpr const char* short_name_list[] = {"Sun", "Mon", "Tue", "Wed", + "Thu", "Fri", "Sat"}; + return wday >= 0 && wday <= 6 ? short_name_list[wday] : "???"; +} + +inline auto tm_mon_full_name(int mon) -> const char* { + static constexpr const char* full_name_list[] = { + "January", "February", "March", "April", "May", "June", + "July", "August", "September", "October", "November", "December"}; + return mon >= 0 && mon <= 11 ? full_name_list[mon] : "?"; +} +inline auto tm_mon_short_name(int mon) -> const char* { + static constexpr const char* short_name_list[] = { + "Jan", "Feb", "Mar", "Apr", "May", "Jun", + "Jul", "Aug", "Sep", "Oct", "Nov", "Dec", + }; + return mon >= 0 && mon <= 11 ? short_name_list[mon] : "???"; +} + +template +struct has_tm_gmtoff : std::false_type {}; +template +struct has_tm_gmtoff> : std::true_type {}; + +template struct has_tm_zone : std::false_type {}; +template +struct has_tm_zone> : std::true_type {}; + +template ::value)> +auto set_tm_zone(T& time, char* tz) -> bool { + time.tm_zone = tz; + return true; +} +template ::value)> +auto set_tm_zone(T&, char*) -> bool { + return false; +} + +inline auto utc() -> char* { + static char tz[] = "UTC"; + return tz; +} + +// Converts value to Int and checks that it's in the range [0, upper). +template ::value)> +inline auto to_nonnegative_int(T value, Int upper) -> Int { + if (!std::is_unsigned::value && + (value < 0 || to_unsigned(value) > to_unsigned(upper))) { + FMT_THROW(format_error("chrono value is out of range")); + } + return static_cast(value); +} +template ::value)> +inline auto to_nonnegative_int(T value, Int upper) -> Int { + auto int_value = static_cast(value); + if (int_value < 0 || value > static_cast(upper)) + FMT_THROW(format_error("invalid value")); + return int_value; +} + +constexpr auto pow10(std::uint32_t n) -> long long { + return n == 0 ? 1 : 10 * pow10(n - 1); +} + +// Counts the number of fractional digits in the range [0, 18] according to the +// C++20 spec. If more than 18 fractional digits are required then returns 6 for +// microseconds precision. +template () / 10)> +struct count_fractional_digits { + static constexpr int value = + Num % Den == 0 ? N : count_fractional_digits::value; +}; + +// Base case that doesn't instantiate any more templates +// in order to avoid overflow. +template +struct count_fractional_digits { + static constexpr int value = (Num % Den == 0) ? N : 6; +}; + +// Format subseconds which are given as an integer type with an appropriate +// number of digits. +template +void write_fractional_seconds(OutputIt& out, Duration d, int precision = -1) { + constexpr auto num_fractional_digits = + count_fractional_digits::value; + + using subsecond_precision = std::chrono::duration< + typename std::common_type::type, + std::ratio<1, pow10(num_fractional_digits)>>; + + const auto fractional = d - detail::duration_cast(d); + const auto subseconds = + std::chrono::treat_as_floating_point< + typename subsecond_precision::rep>::value + ? fractional.count() + : detail::duration_cast(fractional).count(); + auto n = static_cast>(subseconds); + const int num_digits = count_digits(n); + + int leading_zeroes = (std::max)(0, num_fractional_digits - num_digits); + if (precision < 0) { + FMT_ASSERT(!std::is_floating_point::value, ""); + if (std::ratio_less::value) { + *out++ = '.'; + out = detail::fill_n(out, leading_zeroes, '0'); + out = format_decimal(out, n, num_digits); + } + } else if (precision > 0) { + *out++ = '.'; + leading_zeroes = min_of(leading_zeroes, precision); + int remaining = precision - leading_zeroes; + out = detail::fill_n(out, leading_zeroes, '0'); + if (remaining < num_digits) { + int num_truncated_digits = num_digits - remaining; + n /= to_unsigned(pow10(to_unsigned(num_truncated_digits))); + if (n != 0) out = format_decimal(out, n, remaining); + return; + } + if (n != 0) { + out = format_decimal(out, n, num_digits); + remaining -= num_digits; + } + out = detail::fill_n(out, remaining, '0'); + } +} + +// Format subseconds which are given as a floating point type with an +// appropriate number of digits. We cannot pass the Duration here, as we +// explicitly need to pass the Rep value in the duration_formatter. +template +void write_floating_seconds(memory_buffer& buf, Duration duration, + int num_fractional_digits = -1) { + using rep = typename Duration::rep; + FMT_ASSERT(std::is_floating_point::value, ""); + + auto val = duration.count(); + + if (num_fractional_digits < 0) { + // For `std::round` with fallback to `round`: + // On some toolchains `std::round` is not available (e.g. GCC 6). + using namespace std; + num_fractional_digits = + count_fractional_digits::value; + if (num_fractional_digits < 6 && static_cast(round(val)) != val) + num_fractional_digits = 6; + } + + fmt::format_to(std::back_inserter(buf), FMT_STRING("{:.{}f}"), + std::fmod(val * static_cast(Duration::period::num) / + static_cast(Duration::period::den), + static_cast(60)), + num_fractional_digits); +} + +template +class tm_writer { + private: + static constexpr int days_per_week = 7; + + const std::locale& loc_; + bool is_classic_; + OutputIt out_; + const Duration* subsecs_; + const std::tm& tm_; + + auto tm_sec() const noexcept -> int { + FMT_ASSERT(tm_.tm_sec >= 0 && tm_.tm_sec <= 61, ""); + return tm_.tm_sec; + } + auto tm_min() const noexcept -> int { + FMT_ASSERT(tm_.tm_min >= 0 && tm_.tm_min <= 59, ""); + return tm_.tm_min; + } + auto tm_hour() const noexcept -> int { + FMT_ASSERT(tm_.tm_hour >= 0 && tm_.tm_hour <= 23, ""); + return tm_.tm_hour; + } + auto tm_mday() const noexcept -> int { + FMT_ASSERT(tm_.tm_mday >= 1 && tm_.tm_mday <= 31, ""); + return tm_.tm_mday; + } + auto tm_mon() const noexcept -> int { + FMT_ASSERT(tm_.tm_mon >= 0 && tm_.tm_mon <= 11, ""); + return tm_.tm_mon; + } + auto tm_year() const noexcept -> long long { return 1900ll + tm_.tm_year; } + auto tm_wday() const noexcept -> int { + FMT_ASSERT(tm_.tm_wday >= 0 && tm_.tm_wday <= 6, ""); + return tm_.tm_wday; + } + auto tm_yday() const noexcept -> int { + FMT_ASSERT(tm_.tm_yday >= 0 && tm_.tm_yday <= 365, ""); + return tm_.tm_yday; + } + + auto tm_hour12() const noexcept -> int { + auto h = tm_hour(); + auto z = h < 12 ? h : h - 12; + return z == 0 ? 12 : z; + } + + // POSIX and the C Standard are unclear or inconsistent about what %C and %y + // do if the year is negative or exceeds 9999. Use the convention that %C + // concatenated with %y yields the same output as %Y, and that %Y contains at + // least 4 characters, with more only if necessary. + auto split_year_lower(long long year) const noexcept -> int { + auto l = year % 100; + if (l < 0) l = -l; // l in [0, 99] + return static_cast(l); + } + + // Algorithm: https://en.wikipedia.org/wiki/ISO_week_date. + auto iso_year_weeks(long long curr_year) const noexcept -> int { + auto prev_year = curr_year - 1; + auto curr_p = + (curr_year + curr_year / 4 - curr_year / 100 + curr_year / 400) % + days_per_week; + auto prev_p = + (prev_year + prev_year / 4 - prev_year / 100 + prev_year / 400) % + days_per_week; + return 52 + ((curr_p == 4 || prev_p == 3) ? 1 : 0); + } + auto iso_week_num(int tm_yday, int tm_wday) const noexcept -> int { + return (tm_yday + 11 - (tm_wday == 0 ? days_per_week : tm_wday)) / + days_per_week; + } + auto tm_iso_week_year() const noexcept -> long long { + auto year = tm_year(); + auto w = iso_week_num(tm_yday(), tm_wday()); + if (w < 1) return year - 1; + if (w > iso_year_weeks(year)) return year + 1; + return year; + } + auto tm_iso_week_of_year() const noexcept -> int { + auto year = tm_year(); + auto w = iso_week_num(tm_yday(), tm_wday()); + if (w < 1) return iso_year_weeks(year - 1); + if (w > iso_year_weeks(year)) return 1; + return w; + } + + void write1(int value) { + *out_++ = static_cast('0' + to_unsigned(value) % 10); + } + void write2(int value) { + const char* d = digits2(to_unsigned(value) % 100); + *out_++ = *d++; + *out_++ = *d; + } + void write2(int value, pad_type pad) { + unsigned int v = to_unsigned(value) % 100; + if (v >= 10) { + const char* d = digits2(v); + *out_++ = *d++; + *out_++ = *d; + } else { + out_ = detail::write_padding(out_, pad); + *out_++ = static_cast('0' + v); + } + } + + void write_year_extended(long long year, pad_type pad) { + // At least 4 characters. + int width = 4; + bool negative = year < 0; + if (negative) { + year = 0 - year; + --width; + } + uint32_or_64_or_128_t n = to_unsigned(year); + const int num_digits = count_digits(n); + if (negative && pad == pad_type::zero) *out_++ = '-'; + if (width > num_digits) + out_ = detail::write_padding(out_, pad, width - num_digits); + if (negative && pad != pad_type::zero) *out_++ = '-'; + out_ = format_decimal(out_, n, num_digits); + } + void write_year(long long year, pad_type pad) { + write_year_extended(year, pad); + } + + void write_utc_offset(long long offset, numeric_system ns) { + if (offset < 0) { + *out_++ = '-'; + offset = -offset; + } else { + *out_++ = '+'; + } + offset /= 60; + write2(static_cast(offset / 60)); + if (ns != numeric_system::standard) *out_++ = ':'; + write2(static_cast(offset % 60)); + } + + template ::value)> + void format_utc_offset(const T& tm, numeric_system ns) { + write_utc_offset(tm.tm_gmtoff, ns); + } + template ::value)> + void format_utc_offset(const T&, numeric_system ns) { + write_utc_offset(0, ns); + } + + template ::value)> + void format_tz_name(const T& tm) { + out_ = write_tm_str(out_, tm.tm_zone, loc_); + } + template ::value)> + void format_tz_name(const T&) { + out_ = std::copy_n(utc(), 3, out_); + } + + void format_localized(char format, char modifier = 0) { + out_ = write(out_, tm_, loc_, format, modifier); + } + + public: + tm_writer(const std::locale& loc, OutputIt out, const std::tm& tm, + const Duration* subsecs = nullptr) + : loc_(loc), + is_classic_(loc_ == get_classic_locale()), + out_(out), + subsecs_(subsecs), + tm_(tm) {} + + auto out() const -> OutputIt { return out_; } + + FMT_CONSTEXPR void on_text(const Char* begin, const Char* end) { + out_ = copy(begin, end, out_); + } + + void on_abbr_weekday() { + if (is_classic_) + out_ = write(out_, tm_wday_short_name(tm_wday())); + else + format_localized('a'); + } + void on_full_weekday() { + if (is_classic_) + out_ = write(out_, tm_wday_full_name(tm_wday())); + else + format_localized('A'); + } + void on_dec0_weekday(numeric_system ns) { + if (is_classic_ || ns == numeric_system::standard) return write1(tm_wday()); + format_localized('w', 'O'); + } + void on_dec1_weekday(numeric_system ns) { + if (is_classic_ || ns == numeric_system::standard) { + auto wday = tm_wday(); + write1(wday == 0 ? days_per_week : wday); + } else { + format_localized('u', 'O'); + } + } + + void on_abbr_month() { + if (is_classic_) + out_ = write(out_, tm_mon_short_name(tm_mon())); + else + format_localized('b'); + } + void on_full_month() { + if (is_classic_) + out_ = write(out_, tm_mon_full_name(tm_mon())); + else + format_localized('B'); + } + + void on_datetime(numeric_system ns) { + if (is_classic_) { + on_abbr_weekday(); + *out_++ = ' '; + on_abbr_month(); + *out_++ = ' '; + on_day_of_month(numeric_system::standard, pad_type::space); + *out_++ = ' '; + on_iso_time(); + *out_++ = ' '; + on_year(numeric_system::standard, pad_type::space); + } else { + format_localized('c', ns == numeric_system::standard ? '\0' : 'E'); + } + } + void on_loc_date(numeric_system ns) { + if (is_classic_) + on_us_date(); + else + format_localized('x', ns == numeric_system::standard ? '\0' : 'E'); + } + void on_loc_time(numeric_system ns) { + if (is_classic_) + on_iso_time(); + else + format_localized('X', ns == numeric_system::standard ? '\0' : 'E'); + } + void on_us_date() { + char buf[8]; + write_digit2_separated(buf, to_unsigned(tm_mon() + 1), + to_unsigned(tm_mday()), + to_unsigned(split_year_lower(tm_year())), '/'); + out_ = copy(std::begin(buf), std::end(buf), out_); + } + void on_iso_date() { + auto year = tm_year(); + char buf[10]; + size_t offset = 0; + if (year >= 0 && year < 10000) { + write2digits(buf, static_cast(year / 100)); + } else { + offset = 4; + write_year_extended(year, pad_type::zero); + year = 0; + } + write_digit2_separated(buf + 2, static_cast(year % 100), + to_unsigned(tm_mon() + 1), to_unsigned(tm_mday()), + '-'); + out_ = copy(std::begin(buf) + offset, std::end(buf), out_); + } + + void on_utc_offset(numeric_system ns) { format_utc_offset(tm_, ns); } + void on_tz_name() { format_tz_name(tm_); } + + void on_year(numeric_system ns, pad_type pad) { + if (is_classic_ || ns == numeric_system::standard) + return write_year(tm_year(), pad); + format_localized('Y', 'E'); + } + void on_short_year(numeric_system ns) { + if (is_classic_ || ns == numeric_system::standard) + return write2(split_year_lower(tm_year())); + format_localized('y', 'O'); + } + void on_offset_year() { + if (is_classic_) return write2(split_year_lower(tm_year())); + format_localized('y', 'E'); + } + + void on_century(numeric_system ns) { + if (is_classic_ || ns == numeric_system::standard) { + auto year = tm_year(); + auto upper = year / 100; + if (year >= -99 && year < 0) { + // Zero upper on negative year. + *out_++ = '-'; + *out_++ = '0'; + } else if (upper >= 0 && upper < 100) { + write2(static_cast(upper)); + } else { + out_ = write(out_, upper); } - break; + } else { + format_localized('C', 'E'); } - case 'O': - if (ptr == end) FMT_THROW(format_error("invalid format")); - c = *ptr++; - switch (c) { - case 'w': - handler.on_dec0_weekday(numeric_system::alternative); - break; - case 'u': - handler.on_dec1_weekday(numeric_system::alternative); - break; - case 'H': - handler.on_24_hour(numeric_system::alternative); - break; - case 'I': - handler.on_12_hour(numeric_system::alternative); - break; - case 'M': - handler.on_minute(numeric_system::alternative); - break; - case 'S': - handler.on_second(numeric_system::alternative); - break; - default: - FMT_THROW(format_error("invalid format")); + } + + void on_dec_month(numeric_system ns, pad_type pad) { + if (is_classic_ || ns == numeric_system::standard) + return write2(tm_mon() + 1, pad); + format_localized('m', 'O'); + } + + void on_dec0_week_of_year(numeric_system ns, pad_type pad) { + if (is_classic_ || ns == numeric_system::standard) + return write2((tm_yday() + days_per_week - tm_wday()) / days_per_week, + pad); + format_localized('U', 'O'); + } + void on_dec1_week_of_year(numeric_system ns, pad_type pad) { + if (is_classic_ || ns == numeric_system::standard) { + auto wday = tm_wday(); + write2((tm_yday() + days_per_week - + (wday == 0 ? (days_per_week - 1) : (wday - 1))) / + days_per_week, + pad); + } else { + format_localized('W', 'O'); + } + } + void on_iso_week_of_year(numeric_system ns, pad_type pad) { + if (is_classic_ || ns == numeric_system::standard) + return write2(tm_iso_week_of_year(), pad); + format_localized('V', 'O'); + } + + void on_iso_week_based_year() { + write_year(tm_iso_week_year(), pad_type::zero); + } + void on_iso_week_based_short_year() { + write2(split_year_lower(tm_iso_week_year())); + } + + void on_day_of_year(pad_type pad) { + auto yday = tm_yday() + 1; + auto digit1 = yday / 100; + if (digit1 != 0) + write1(digit1); + else + out_ = detail::write_padding(out_, pad); + write2(yday % 100, pad); + } + + void on_day_of_month(numeric_system ns, pad_type pad) { + if (is_classic_ || ns == numeric_system::standard) + return write2(tm_mday(), pad); + format_localized('d', 'O'); + } + + void on_24_hour(numeric_system ns, pad_type pad) { + if (is_classic_ || ns == numeric_system::standard) + return write2(tm_hour(), pad); + format_localized('H', 'O'); + } + void on_12_hour(numeric_system ns, pad_type pad) { + if (is_classic_ || ns == numeric_system::standard) + return write2(tm_hour12(), pad); + format_localized('I', 'O'); + } + void on_minute(numeric_system ns, pad_type pad) { + if (is_classic_ || ns == numeric_system::standard) + return write2(tm_min(), pad); + format_localized('M', 'O'); + } + + void on_second(numeric_system ns, pad_type pad) { + if (is_classic_ || ns == numeric_system::standard) { + write2(tm_sec(), pad); + if (subsecs_) { + if (std::is_floating_point::value) { + auto buf = memory_buffer(); + write_floating_seconds(buf, *subsecs_); + if (buf.size() > 1) { + // Remove the leading "0", write something like ".123". + out_ = copy(buf.begin() + 1, buf.end(), out_); + } + } else { + write_fractional_seconds(out_, *subsecs_); + } } - break; - default: - FMT_THROW(format_error("invalid format")); + } else { + // Currently no formatting of subseconds when a locale is set. + format_localized('S', 'O'); + } + } + + void on_12_hour_time() { + if (is_classic_) { + char buf[8]; + write_digit2_separated(buf, to_unsigned(tm_hour12()), + to_unsigned(tm_min()), to_unsigned(tm_sec()), ':'); + out_ = copy(std::begin(buf), std::end(buf), out_); + *out_++ = ' '; + on_am_pm(); + } else { + format_localized('r'); + } + } + void on_24_hour_time() { + write2(tm_hour()); + *out_++ = ':'; + write2(tm_min()); + } + void on_iso_time() { + on_24_hour_time(); + *out_++ = ':'; + on_second(numeric_system::standard, pad_type::zero); + } + + void on_am_pm() { + if (is_classic_) { + *out_++ = tm_hour() < 12 ? 'A' : 'P'; + *out_++ = 'M'; + } else { + format_localized('p'); } - begin = ptr; } - if (begin != ptr) handler.on_text(begin, ptr); - return ptr; -} -struct chrono_format_checker { - FMT_NORETURN void report_no_date() { FMT_THROW(format_error("no date")); } - - template void on_text(const Char*, const Char*) {} - FMT_NORETURN void on_abbr_weekday() { report_no_date(); } - FMT_NORETURN void on_full_weekday() { report_no_date(); } - FMT_NORETURN void on_dec0_weekday(numeric_system) { report_no_date(); } - FMT_NORETURN void on_dec1_weekday(numeric_system) { report_no_date(); } - FMT_NORETURN void on_abbr_month() { report_no_date(); } - FMT_NORETURN void on_full_month() { report_no_date(); } - void on_24_hour(numeric_system) {} - void on_12_hour(numeric_system) {} - void on_minute(numeric_system) {} - void on_second(numeric_system) {} - FMT_NORETURN void on_datetime(numeric_system) { report_no_date(); } - FMT_NORETURN void on_loc_date(numeric_system) { report_no_date(); } - FMT_NORETURN void on_loc_time(numeric_system) { report_no_date(); } - FMT_NORETURN void on_us_date() { report_no_date(); } - FMT_NORETURN void on_iso_date() { report_no_date(); } - void on_12_hour_time() {} - void on_24_hour_time() {} - void on_iso_time() {} - void on_am_pm() {} + // These apply to chrono durations but not tm. void on_duration_value() {} void on_duration_unit() {} - FMT_NORETURN void on_utc_offset() { report_no_date(); } - FMT_NORETURN void on_tz_name() { report_no_date(); } }; -template ::value)> -inline bool isnan(T) { - return false; -} -template ::value)> -inline bool isnan(T value) { - return std::isnan(value); -} +struct chrono_format_checker : null_chrono_spec_handler { + bool has_precision_integral = false; + + FMT_NORETURN inline void unsupported() { FMT_THROW(format_error("no date")); } + + template + FMT_CONSTEXPR void on_text(const Char*, const Char*) {} + FMT_CONSTEXPR void on_day_of_year(pad_type) {} + FMT_CONSTEXPR void on_24_hour(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_12_hour(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_minute(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_second(numeric_system, pad_type) {} + FMT_CONSTEXPR void on_12_hour_time() {} + FMT_CONSTEXPR void on_24_hour_time() {} + FMT_CONSTEXPR void on_iso_time() {} + FMT_CONSTEXPR void on_am_pm() {} + FMT_CONSTEXPR void on_duration_value() const { + if (has_precision_integral) + FMT_THROW(format_error("precision not allowed for this argument type")); + } + FMT_CONSTEXPR void on_duration_unit() {} +}; -template ::value)> -inline bool isfinite(T) { +template ::value&& has_isfinite::value)> +inline auto isfinite(T) -> bool { return true; } -template ::value)> -inline bool isfinite(T value) { - return std::isfinite(value); -} - -// Convers value to int and checks that it's in the range [0, upper). -template ::value)> -inline int to_nonnegative_int(T value, int upper) { - FMT_ASSERT(value >= 0 && value <= upper, "invalid value"); - (void)upper; - return static_cast(value); -} -template ::value)> -inline int to_nonnegative_int(T value, int upper) { - FMT_ASSERT( - std::isnan(value) || (value >= 0 && value <= static_cast(upper)), - "invalid value"); - (void)upper; - return static_cast(value); -} template ::value)> -inline T mod(T x, int y) { - return x % y; +inline auto mod(T x, int y) -> T { + return x % static_cast(y); } template ::value)> -inline T mod(T x, int y) { +inline auto mod(T x, int y) -> T { return std::fmod(x, static_cast(y)); } @@ -439,86 +1520,118 @@ template struct make_unsigned_or_unchanged { using type = typename std::make_unsigned::type; }; -#if FMT_SAFE_DURATION_CAST -// throwing version of safe_duration_cast -template -To fmt_safe_duration_cast(std::chrono::duration from) { - int ec; - To to = safe_duration_cast::safe_duration_cast(from, ec); - if (ec) FMT_THROW(format_error("cannot format duration")); - return to; -} -#endif - template ::value)> -inline std::chrono::duration get_milliseconds( - std::chrono::duration d) { - // this may overflow and/or the result may not fit in the - // target type. +inline auto get_milliseconds(std::chrono::duration d) + -> std::chrono::duration { + // This may overflow and/or the result may not fit in the target type. #if FMT_SAFE_DURATION_CAST - using CommonSecondsType = + using common_seconds_type = typename std::common_type::type; - const auto d_as_common = fmt_safe_duration_cast(d); - const auto d_as_whole_seconds = - fmt_safe_duration_cast(d_as_common); - // this conversion should be nonproblematic - const auto diff = d_as_common - d_as_whole_seconds; - const auto ms = - fmt_safe_duration_cast>(diff); + auto d_as_common = detail::duration_cast(d); + auto d_as_whole_seconds = + detail::duration_cast(d_as_common); + // This conversion should be nonproblematic. + auto diff = d_as_common - d_as_whole_seconds; + auto ms = detail::duration_cast>(diff); return ms; #else - auto s = std::chrono::duration_cast(d); - return std::chrono::duration_cast(d - s); + auto s = detail::duration_cast(d); + return detail::duration_cast(d - s); #endif } -template ::value)> +auto format_duration_value(OutputIt out, Rep val, int) -> OutputIt { + return write(out, val); +} + +template ::value)> -inline std::chrono::duration get_milliseconds( - std::chrono::duration d) { - using common_type = typename std::common_type::type; - auto ms = mod(d.count() * static_cast(Period::num) / - static_cast(Period::den) * 1000, - 1000); - return std::chrono::duration(static_cast(ms)); -} - -template -OutputIt format_chrono_duration_value(OutputIt out, Rep val, int precision) { - if (precision >= 0) return format_to(out, "{:.{}f}", val, precision); - return format_to(out, std::is_floating_point::value ? "{:g}" : "{}", - val); -} - -template -static OutputIt format_chrono_duration_unit(OutputIt out) { - if (const char* unit = get_units()) return format_to(out, "{}", unit); - if (Period::den == 1) return format_to(out, "[{}]s", Period::num); - return format_to(out, "[{}/{}]s", Period::num, Period::den); -} - -template -struct chrono_formatter { - FormatContext& context; - OutputIt out; - int precision; +auto format_duration_value(OutputIt out, Rep val, int precision) -> OutputIt { + auto specs = format_specs(); + specs.precision = precision; + specs.set_type(precision >= 0 ? presentation_type::fixed + : presentation_type::general); + return write(out, val, specs); +} + +template +auto copy_unit(string_view unit, OutputIt out, Char) -> OutputIt { + return copy(unit.begin(), unit.end(), out); +} + +template +auto copy_unit(string_view unit, OutputIt out, wchar_t) -> OutputIt { + // This works when wchar_t is UTF-32 because units only contain characters + // that have the same representation in UTF-16 and UTF-32. + utf8_to_utf16 u(unit); + return copy(u.c_str(), u.c_str() + u.size(), out); +} + +template +auto format_duration_unit(OutputIt out) -> OutputIt { + if (const char* unit = get_units()) + return copy_unit(string_view(unit), out, Char()); + *out++ = '['; + out = write(out, Period::num); + if (const_check(Period::den != 1)) { + *out++ = '/'; + out = write(out, Period::den); + } + *out++ = ']'; + *out++ = 's'; + return out; +} + +class get_locale { + private: + union { + std::locale locale_; + }; + bool has_locale_ = false; + + public: + inline get_locale(bool localized, locale_ref loc) : has_locale_(localized) { + if (!localized) return; + ignore_unused(loc); + ::new (&locale_) std::locale( +#if FMT_USE_LOCALE + loc.template get() +#endif + ); + } + inline ~get_locale() { + if (has_locale_) locale_.~locale(); + } + inline operator const std::locale&() const { + return has_locale_ ? locale_ : get_classic_locale(); + } +}; + +template +struct duration_formatter { + using iterator = basic_appender; + iterator out; // rep is unsigned to avoid overflow. using rep = conditional_t::value && sizeof(Rep) < sizeof(int), unsigned, typename make_unsigned_or_unchanged::type>; rep val; + int precision; + locale_ref locale; + bool localized = false; using seconds = std::chrono::duration; seconds s; using milliseconds = std::chrono::duration; bool negative; - using char_type = typename FormatContext::char_type; + using tm_writer_type = tm_writer; - explicit chrono_formatter(FormatContext& ctx, OutputIt o, - std::chrono::duration d) - : context(ctx), out(o), val(d.count()), negative(false) { + duration_formatter(iterator o, std::chrono::duration d, + locale_ref loc) + : out(o), val(static_cast(d.count())), locale(loc), negative(false) { if (d.count() < 0) { val = 0 - val; negative = true; @@ -526,45 +1639,41 @@ struct chrono_formatter { // this may overflow and/or the result may not fit in the // target type. -#if FMT_SAFE_DURATION_CAST // might need checked conversion (rep!=Rep) - auto tmpval = std::chrono::duration(val); - s = fmt_safe_duration_cast(tmpval); -#else - s = std::chrono::duration_cast( - std::chrono::duration(val)); -#endif + s = detail::duration_cast(std::chrono::duration(val)); } // returns true if nan or inf, writes to out. - bool handle_nan_inf() { - if (isfinite(val)) { - return false; - } + auto handle_nan_inf() -> bool { + if (isfinite(val)) return false; if (isnan(val)) { write_nan(); return true; } // must be +-inf - if (val > 0) { - write_pinf(); - } else { - write_ninf(); - } + if (val > 0) + std::copy_n("inf", 3, out); + else + std::copy_n("-inf", 4, out); return true; } - Rep hour() const { return static_cast(mod((s.count() / 3600), 24)); } + auto days() const -> Rep { return static_cast(s.count() / 86400); } + auto hour() const -> Rep { + return static_cast(mod((s.count() / 3600), 24)); + } - Rep hour12() const { + auto hour12() const -> Rep { Rep hour = static_cast(mod((s.count() / 3600), 12)); return hour <= 0 ? 12 : hour; } - Rep minute() const { return static_cast(mod((s.count() / 60), 60)); } - Rep second() const { return static_cast(mod(s.count(), 60)); } + auto minute() const -> Rep { + return static_cast(mod((s.count() / 60), 60)); + } + auto second() const -> Rep { return static_cast(mod(s.count(), 60)); } - std::tm time() const { + auto time() const -> std::tm { auto time = std::tm(); time.tm_hour = to_nonnegative_int(hour(), 24); time.tm_min = to_nonnegative_int(minute(), 60); @@ -573,39 +1682,36 @@ struct chrono_formatter { } void write_sign() { - if (negative) { - *out++ = '-'; - negative = false; - } + if (!negative) return; + *out++ = '-'; + negative = false; } - void write(Rep value, int width) { + void write(Rep value, int width, pad_type pad = pad_type::zero) { write_sign(); if (isnan(value)) return write_nan(); - uint32_or_64_t n = to_unsigned( - to_nonnegative_int(value, (std::numeric_limits::max)())); - int num_digits = internal::count_digits(n); - if (width > num_digits) out = std::fill_n(out, width - num_digits, '0'); - out = format_decimal(out, n, num_digits); + uint32_or_64_or_128_t n = + to_unsigned(to_nonnegative_int(value, max_value())); + int num_digits = detail::count_digits(n); + if (width > num_digits) { + out = detail::write_padding(out, pad, width - num_digits); + } + out = format_decimal(out, n, num_digits); } void write_nan() { std::copy_n("nan", 3, out); } - void write_pinf() { std::copy_n("inf", 3, out); } - void write_ninf() { std::copy_n("-inf", 4, out); } - void format_localized(const tm& time, const char* format) { + template + void format_tm(const tm& time, Callback cb, Args... args) { if (isnan(val)) return write_nan(); - auto locale = context.locale().template get(); - auto& facet = std::use_facet>(locale); - std::basic_ostringstream os; - os.imbue(locale); - facet.put(os, os, ' ', &time, format, format + std::strlen(format)); - auto str = os.str(); - std::copy(str.begin(), str.end(), out); + get_locale loc(localized, locale); + auto w = tm_writer_type(loc, out, time); + (w.*cb)(args...); + out = w.out(); } - void on_text(const char_type* begin, const char_type* end) { - std::copy(begin, end, out); + void on_text(const Char* begin, const Char* end) { + copy(begin, end, out); } // These are not implemented because durations don't have date information. @@ -620,65 +1726,79 @@ struct chrono_formatter { void on_loc_time(numeric_system) {} void on_us_date() {} void on_iso_date() {} - void on_utc_offset() {} + void on_utc_offset(numeric_system) {} void on_tz_name() {} + void on_year(numeric_system, pad_type) {} + void on_short_year(numeric_system) {} + void on_offset_year() {} + void on_century(numeric_system) {} + void on_iso_week_based_year() {} + void on_iso_week_based_short_year() {} + void on_dec_month(numeric_system, pad_type) {} + void on_dec0_week_of_year(numeric_system, pad_type) {} + void on_dec1_week_of_year(numeric_system, pad_type) {} + void on_iso_week_of_year(numeric_system, pad_type) {} + void on_day_of_month(numeric_system, pad_type) {} + + void on_day_of_year(pad_type) { + if (handle_nan_inf()) return; + write(days(), 0); + } - void on_24_hour(numeric_system ns) { + void on_24_hour(numeric_system ns, pad_type pad) { if (handle_nan_inf()) return; - if (ns == numeric_system::standard) return write(hour(), 2); + if (ns == numeric_system::standard) return write(hour(), 2, pad); auto time = tm(); time.tm_hour = to_nonnegative_int(hour(), 24); - format_localized(time, "%OH"); + format_tm(time, &tm_writer_type::on_24_hour, ns, pad); } - void on_12_hour(numeric_system ns) { + void on_12_hour(numeric_system ns, pad_type pad) { if (handle_nan_inf()) return; - if (ns == numeric_system::standard) return write(hour12(), 2); + if (ns == numeric_system::standard) return write(hour12(), 2, pad); auto time = tm(); time.tm_hour = to_nonnegative_int(hour12(), 12); - format_localized(time, "%OI"); + format_tm(time, &tm_writer_type::on_12_hour, ns, pad); } - void on_minute(numeric_system ns) { + void on_minute(numeric_system ns, pad_type pad) { if (handle_nan_inf()) return; - if (ns == numeric_system::standard) return write(minute(), 2); + if (ns == numeric_system::standard) return write(minute(), 2, pad); auto time = tm(); time.tm_min = to_nonnegative_int(minute(), 60); - format_localized(time, "%OM"); + format_tm(time, &tm_writer_type::on_minute, ns, pad); } - void on_second(numeric_system ns) { + void on_second(numeric_system ns, pad_type pad) { if (handle_nan_inf()) return; if (ns == numeric_system::standard) { - write(second(), 2); -#if FMT_SAFE_DURATION_CAST - // convert rep->Rep - using duration_rep = std::chrono::duration; - using duration_Rep = std::chrono::duration; - auto tmpval = fmt_safe_duration_cast(duration_rep{val}); -#else - auto tmpval = std::chrono::duration(val); -#endif - auto ms = get_milliseconds(tmpval); - if (ms != std::chrono::milliseconds(0)) { - *out++ = '.'; - write(ms.count(), 3); + if (std::is_floating_point::value) { + auto buf = memory_buffer(); + write_floating_seconds(buf, std::chrono::duration(val), + precision); + if (negative) *out++ = '-'; + if (buf.size() < 2 || buf[1] == '.') + out = detail::write_padding(out, pad); + out = copy(buf.begin(), buf.end(), out); + } else { + write(second(), 2, pad); + write_fractional_seconds( + out, std::chrono::duration(val), precision); } return; } auto time = tm(); time.tm_sec = to_nonnegative_int(second(), 60); - format_localized(time, "%OS"); + format_tm(time, &tm_writer_type::on_second, ns, pad); } void on_12_hour_time() { if (handle_nan_inf()) return; - - format_localized(time(), "%r"); + format_tm(time(), &tm_writer_type::on_12_hour_time); } void on_24_hour_time() { @@ -697,133 +1817,430 @@ struct chrono_formatter { on_24_hour_time(); *out++ = ':'; if (handle_nan_inf()) return; - write(second(), 2); + on_second(numeric_system::standard, pad_type::zero); } void on_am_pm() { if (handle_nan_inf()) return; - format_localized(time(), "%p"); + format_tm(time(), &tm_writer_type::on_am_pm); } void on_duration_value() { if (handle_nan_inf()) return; write_sign(); - out = format_chrono_duration_value(out, val, precision); + out = format_duration_value(out, val, precision); } - void on_duration_unit() { out = format_chrono_duration_unit(out); } + void on_duration_unit() { out = format_duration_unit(out); } }; -} // namespace internal -template -struct formatter, Char> { +} // namespace detail + +#if defined(__cpp_lib_chrono) && __cpp_lib_chrono >= 201907 +using weekday = std::chrono::weekday; +using day = std::chrono::day; +using month = std::chrono::month; +using year = std::chrono::year; +using year_month_day = std::chrono::year_month_day; +#else +// A fallback version of weekday. +class weekday { private: - basic_format_specs specs; - int precision; - using arg_ref_type = internal::arg_ref; - arg_ref_type width_ref; - arg_ref_type precision_ref; - mutable basic_string_view format_str; - using duration = std::chrono::duration; + unsigned char value_; - struct spec_handler { - formatter& f; - basic_parse_context& context; - basic_string_view format_str; + public: + weekday() = default; + constexpr explicit weekday(unsigned wd) noexcept + : value_(static_cast(wd != 7 ? wd : 0)) {} + constexpr auto c_encoding() const noexcept -> unsigned { return value_; } +}; - template FMT_CONSTEXPR arg_ref_type make_arg_ref(Id arg_id) { - context.check_arg_id(arg_id); - return arg_ref_type(arg_id); - } +class day { + private: + unsigned char value_; - FMT_CONSTEXPR arg_ref_type make_arg_ref(basic_string_view arg_id) { - context.check_arg_id(arg_id); - const auto str_val = internal::string_view_metadata(format_str, arg_id); - return arg_ref_type(str_val); - } + public: + day() = default; + constexpr explicit day(unsigned d) noexcept + : value_(static_cast(d)) {} + constexpr explicit operator unsigned() const noexcept { return value_; } +}; - FMT_CONSTEXPR arg_ref_type make_arg_ref(internal::auto_id) { - return arg_ref_type(context.next_arg_id()); - } +class month { + private: + unsigned char value_; + + public: + month() = default; + constexpr explicit month(unsigned m) noexcept + : value_(static_cast(m)) {} + constexpr explicit operator unsigned() const noexcept { return value_; } +}; - void on_error(const char* msg) { FMT_THROW(format_error(msg)); } - void on_fill(Char fill) { f.specs.fill[0] = fill; } - void on_align(align_t align) { f.specs.align = align; } - void on_width(unsigned width) { f.specs.width = width; } - void on_precision(unsigned precision) { f.precision = precision; } - void end_precision() {} +class year { + private: + int value_; - template void on_dynamic_width(Id arg_id) { - f.width_ref = make_arg_ref(arg_id); - } + public: + year() = default; + constexpr explicit year(int y) noexcept : value_(y) {} + constexpr explicit operator int() const noexcept { return value_; } +}; + +class year_month_day { + private: + fmt::year year_; + fmt::month month_; + fmt::day day_; + + public: + year_month_day() = default; + constexpr year_month_day(const year& y, const month& m, const day& d) noexcept + : year_(y), month_(m), day_(d) {} + constexpr auto year() const noexcept -> fmt::year { return year_; } + constexpr auto month() const noexcept -> fmt::month { return month_; } + constexpr auto day() const noexcept -> fmt::day { return day_; } +}; +#endif // __cpp_lib_chrono >= 201907 + +template +struct formatter : private formatter { + private: + bool use_tm_formatter_ = false; - template void on_dynamic_precision(Id arg_id) { - f.precision_ref = make_arg_ref(arg_id); + public: + FMT_CONSTEXPR auto parse(parse_context& ctx) -> const Char* { + auto it = ctx.begin(), end = ctx.end(); + if (it != end && *it == 'L') { + ++it; + this->set_localized(); } - }; + use_tm_formatter_ = it != end && *it != '}'; + return use_tm_formatter_ ? formatter::parse(ctx) : it; + } - using iterator = typename basic_parse_context::iterator; - struct parse_range { - iterator begin; - iterator end; - }; + template + auto format(weekday wd, FormatContext& ctx) const -> decltype(ctx.out()) { + auto time = std::tm(); + time.tm_wday = static_cast(wd.c_encoding()); + if (use_tm_formatter_) return formatter::format(time, ctx); + detail::get_locale loc(this->localized(), ctx.locale()); + auto w = detail::tm_writer(loc, ctx.out(), time); + w.on_abbr_weekday(); + return w.out(); + } +}; + +template +struct formatter : private formatter { + private: + bool use_tm_formatter_ = false; + + public: + FMT_CONSTEXPR auto parse(parse_context& ctx) -> const Char* { + auto it = ctx.begin(), end = ctx.end(); + use_tm_formatter_ = it != end && *it != '}'; + return use_tm_formatter_ ? formatter::parse(ctx) : it; + } + + template + auto format(day d, FormatContext& ctx) const -> decltype(ctx.out()) { + auto time = std::tm(); + time.tm_mday = static_cast(static_cast(d)); + if (use_tm_formatter_) return formatter::format(time, ctx); + detail::get_locale loc(false, ctx.locale()); + auto w = detail::tm_writer(loc, ctx.out(), time); + w.on_day_of_month(detail::numeric_system::standard, detail::pad_type::zero); + return w.out(); + } +}; - FMT_CONSTEXPR parse_range do_parse(basic_parse_context& ctx) { - auto begin = ctx.begin(), end = ctx.end(); - if (begin == end || *begin == '}') return {begin, begin}; - spec_handler handler{*this, ctx, format_str}; - begin = internal::parse_align(begin, end, handler); - if (begin == end) return {begin, begin}; - begin = internal::parse_width(begin, end, handler); - if (begin == end) return {begin, begin}; - if (*begin == '.') { - if (std::is_floating_point::value) - begin = internal::parse_precision(begin, end, handler); - else - handler.on_error("precision not allowed for this argument type"); +template +struct formatter : private formatter { + private: + bool use_tm_formatter_ = false; + + public: + FMT_CONSTEXPR auto parse(parse_context& ctx) -> const Char* { + auto it = ctx.begin(), end = ctx.end(); + if (it != end && *it == 'L') { + ++it; + this->set_localized(); } - end = parse_chrono_format(begin, end, internal::chrono_format_checker()); - return {begin, end}; + use_tm_formatter_ = it != end && *it != '}'; + return use_tm_formatter_ ? formatter::parse(ctx) : it; + } + + template + auto format(month m, FormatContext& ctx) const -> decltype(ctx.out()) { + auto time = std::tm(); + time.tm_mon = static_cast(static_cast(m)) - 1; + if (use_tm_formatter_) return formatter::format(time, ctx); + detail::get_locale loc(this->localized(), ctx.locale()); + auto w = detail::tm_writer(loc, ctx.out(), time); + w.on_abbr_month(); + return w.out(); + } +}; + +template +struct formatter : private formatter { + private: + bool use_tm_formatter_ = false; + + public: + FMT_CONSTEXPR auto parse(parse_context& ctx) -> const Char* { + auto it = ctx.begin(), end = ctx.end(); + use_tm_formatter_ = it != end && *it != '}'; + return use_tm_formatter_ ? formatter::parse(ctx) : it; + } + + template + auto format(year y, FormatContext& ctx) const -> decltype(ctx.out()) { + auto time = std::tm(); + time.tm_year = static_cast(y) - 1900; + if (use_tm_formatter_) return formatter::format(time, ctx); + detail::get_locale loc(false, ctx.locale()); + auto w = detail::tm_writer(loc, ctx.out(), time); + w.on_year(detail::numeric_system::standard, detail::pad_type::zero); + return w.out(); + } +}; + +template +struct formatter : private formatter { + private: + bool use_tm_formatter_ = false; + + public: + FMT_CONSTEXPR auto parse(parse_context& ctx) -> const Char* { + auto it = ctx.begin(), end = ctx.end(); + use_tm_formatter_ = it != end && *it != '}'; + return use_tm_formatter_ ? formatter::parse(ctx) : it; + } + + template + auto format(year_month_day val, FormatContext& ctx) const + -> decltype(ctx.out()) { + auto time = std::tm(); + time.tm_year = static_cast(val.year()) - 1900; + time.tm_mon = static_cast(static_cast(val.month())) - 1; + time.tm_mday = static_cast(static_cast(val.day())); + if (use_tm_formatter_) return formatter::format(time, ctx); + detail::get_locale loc(true, ctx.locale()); + auto w = detail::tm_writer(loc, ctx.out(), time); + w.on_iso_date(); + return w.out(); } +}; + +template +struct formatter, Char> { + private: + format_specs specs_; + detail::arg_ref width_ref_; + detail::arg_ref precision_ref_; + basic_string_view fmt_; public: - formatter() : precision(-1) {} + FMT_CONSTEXPR auto parse(parse_context& ctx) -> const Char* { + auto it = ctx.begin(), end = ctx.end(); + if (it == end || *it == '}') return it; + + it = detail::parse_align(it, end, specs_); + if (it == end) return it; - FMT_CONSTEXPR auto parse(basic_parse_context& ctx) - -> decltype(ctx.begin()) { - auto range = do_parse(ctx); - format_str = basic_string_view( - &*range.begin, internal::to_unsigned(range.end - range.begin)); - return range.end; + Char c = *it; + if ((c >= '0' && c <= '9') || c == '{') { + it = detail::parse_width(it, end, specs_, width_ref_, ctx); + if (it == end) return it; + } + + auto checker = detail::chrono_format_checker(); + if (*it == '.') { + checker.has_precision_integral = !std::is_floating_point::value; + it = detail::parse_precision(it, end, specs_, precision_ref_, ctx); + } + if (it != end && *it == 'L') { + specs_.set_localized(); + ++it; + } + end = detail::parse_chrono_format(it, end, checker); + fmt_ = {it, detail::to_unsigned(end - it)}; + return end; } template - auto format(const duration& d, FormatContext& ctx) -> decltype(ctx.out()) { - auto begin = format_str.begin(), end = format_str.end(); + auto format(std::chrono::duration d, FormatContext& ctx) const + -> decltype(ctx.out()) { + auto specs = specs_; + auto precision = specs.precision; + specs.precision = -1; + auto begin = fmt_.begin(), end = fmt_.end(); // As a possible future optimization, we could avoid extra copying if width // is not specified. - basic_memory_buffer buf; - auto out = std::back_inserter(buf); - using range = internal::output_range; - internal::basic_writer w(range(ctx.out())); - internal::handle_dynamic_spec( - specs.width, width_ref, ctx, format_str.begin()); - internal::handle_dynamic_spec( - precision, precision_ref, ctx, format_str.begin()); + auto buf = basic_memory_buffer(); + auto out = basic_appender(buf); + detail::handle_dynamic_spec(specs.dynamic_width(), specs.width, width_ref_, + ctx); + detail::handle_dynamic_spec(specs.dynamic_precision(), precision, + precision_ref_, ctx); if (begin == end || *begin == '}') { - out = internal::format_chrono_duration_value(out, d.count(), precision); - internal::format_chrono_duration_unit(out); + out = detail::format_duration_value(out, d.count(), precision); + detail::format_duration_unit(out); } else { - internal::chrono_formatter f( - ctx, out, d); + auto f = + detail::duration_formatter(out, d, ctx.locale()); f.precision = precision; - parse_chrono_format(begin, end, f); + f.localized = specs_.localized(); + detail::parse_chrono_format(begin, end, f); } - w.write(buf.data(), buf.size(), specs); - return w.out(); + return detail::write( + ctx.out(), basic_string_view(buf.data(), buf.size()), specs); + } +}; + +template struct formatter { + private: + format_specs specs_; + detail::arg_ref width_ref_; + basic_string_view fmt_ = + detail::string_literal(); + + protected: + auto localized() const -> bool { return specs_.localized(); } + FMT_CONSTEXPR void set_localized() { specs_.set_localized(); } + + FMT_CONSTEXPR auto do_parse(parse_context& ctx, bool has_timezone) + -> const Char* { + auto it = ctx.begin(), end = ctx.end(); + if (it == end || *it == '}') return it; + + it = detail::parse_align(it, end, specs_); + if (it == end) return it; + + Char c = *it; + if ((c >= '0' && c <= '9') || c == '{') { + it = detail::parse_width(it, end, specs_, width_ref_, ctx); + if (it == end) return it; + } + + if (*it == 'L') { + specs_.set_localized(); + ++it; + } + + end = detail::parse_chrono_format(it, end, + detail::tm_format_checker(has_timezone)); + // Replace the default format string only if the new spec is not empty. + if (end != it) fmt_ = {it, detail::to_unsigned(end - it)}; + return end; + } + + template + auto do_format(const std::tm& tm, FormatContext& ctx, + const Duration* subsecs) const -> decltype(ctx.out()) { + auto specs = specs_; + auto buf = basic_memory_buffer(); + auto out = basic_appender(buf); + detail::handle_dynamic_spec(specs.dynamic_width(), specs.width, width_ref_, + ctx); + + auto loc_ref = specs.localized() ? ctx.locale() : locale_ref(); + detail::get_locale loc(static_cast(loc_ref), loc_ref); + auto w = detail::tm_writer, Char, Duration>( + loc, out, tm, subsecs); + detail::parse_chrono_format(fmt_.begin(), fmt_.end(), w); + return detail::write( + ctx.out(), basic_string_view(buf.data(), buf.size()), specs); + } + + public: + FMT_CONSTEXPR auto parse(parse_context& ctx) -> const Char* { + return do_parse(ctx, detail::has_tm_gmtoff::value); + } + + template + auto format(const std::tm& tm, FormatContext& ctx) const + -> decltype(ctx.out()) { + return do_format(tm, ctx, nullptr); + } +}; + +// DEPRECATED! Reversed order of template parameters. +template +struct formatter, Char> : private formatter { + FMT_CONSTEXPR auto parse(parse_context& ctx) -> const Char* { + return this->do_parse(ctx, true); + } + + template + auto format(sys_time val, FormatContext& ctx) const + -> decltype(ctx.out()) { + std::tm tm = gmtime(val); + using period = typename Duration::period; + if (detail::const_check( + period::num == 1 && period::den == 1 && + !std::is_floating_point::value)) { + detail::set_tm_zone(tm, detail::utc()); + return formatter::format(tm, ctx); + } + Duration epoch = val.time_since_epoch(); + Duration subsecs = detail::duration_cast( + epoch - detail::duration_cast(epoch)); + if (subsecs.count() < 0) { + auto second = detail::duration_cast(std::chrono::seconds(1)); + if (tm.tm_sec != 0) { + --tm.tm_sec; + } else { + tm = gmtime(val - second); + detail::set_tm_zone(tm, detail::utc()); + } + subsecs += second; + } + return formatter::do_format(tm, ctx, &subsecs); + } +}; + +template +struct formatter, Char> + : formatter, Char> { + template + auto format(utc_time val, FormatContext& ctx) const + -> decltype(ctx.out()) { + return formatter, Char>::format( + detail::utc_clock::to_sys(val), ctx); + } +}; + +template +struct formatter, Char> + : private formatter { + FMT_CONSTEXPR auto parse(parse_context& ctx) -> const Char* { + return this->do_parse(ctx, false); + } + + template + auto format(local_time val, FormatContext& ctx) const + -> decltype(ctx.out()) { + auto time_since_epoch = val.time_since_epoch(); + auto seconds_since_epoch = + detail::duration_cast(time_since_epoch); + // Use gmtime to prevent time zone conversion since local_time has an + // unspecified time zone. + std::tm t = gmtime(seconds_since_epoch.count()); + using period = typename Duration::period; + if (period::num == 1 && period::den == 1 && + !std::is_floating_point::value) { + return formatter::format(t, ctx); + } + auto subsecs = + detail::duration_cast(time_since_epoch - seconds_since_epoch); + return formatter::do_format(t, ctx, &subsecs); } }; +FMT_END_EXPORT FMT_END_NAMESPACE #endif // FMT_CHRONO_H_ diff --git a/Source/ThirdParty/spdlog/fmt/bundled/color.h b/Source/ThirdParty/spdlog/fmt/bundled/color.h index d9d315599..2cbc53ca3 100644 --- a/Source/ThirdParty/spdlog/fmt/bundled/color.h +++ b/Source/ThirdParty/spdlog/fmt/bundled/color.h @@ -11,6 +11,7 @@ #include "format.h" FMT_BEGIN_NAMESPACE +FMT_BEGIN_EXPORT enum class color : uint32_t { alice_blue = 0xF0F8FF, // rgb(240,248,255) @@ -177,19 +178,23 @@ enum class terminal_color : uint8_t { enum class emphasis : uint8_t { bold = 1, - italic = 1 << 1, - underline = 1 << 2, - strikethrough = 1 << 3 + faint = 1 << 1, + italic = 1 << 2, + underline = 1 << 3, + blink = 1 << 4, + reverse = 1 << 5, + conceal = 1 << 6, + strikethrough = 1 << 7, }; // rgb is a struct for red, green and blue colors. // Using the name "rgb" makes some editors show the color in a tooltip. struct rgb { - FMT_CONSTEXPR rgb() : r(0), g(0), b(0) {} - FMT_CONSTEXPR rgb(uint8_t r_, uint8_t g_, uint8_t b_) : r(r_), g(g_), b(b_) {} - FMT_CONSTEXPR rgb(uint32_t hex) + constexpr rgb() : r(0), g(0), b(0) {} + constexpr rgb(uint8_t r_, uint8_t g_, uint8_t b_) : r(r_), g(g_), b(b_) {} + constexpr rgb(uint32_t hex) : r((hex >> 16) & 0xFF), g((hex >> 8) & 0xFF), b(hex & 0xFF) {} - FMT_CONSTEXPR rgb(color hex) + constexpr rgb(color hex) : r((uint32_t(hex) >> 16) & 0xFF), g((uint32_t(hex) >> 8) & 0xFF), b(uint32_t(hex) & 0xFF) {} @@ -198,388 +203,435 @@ struct rgb { uint8_t b; }; -namespace internal { +namespace detail { -// color is a struct of either a rgb color or a terminal color. +// A bit-packed variant of an RGB color, a terminal color, or unset color. +// see text_style for the bit-packing scheme. struct color_type { - FMT_CONSTEXPR color_type() FMT_NOEXCEPT : is_rgb(), value{} {} - FMT_CONSTEXPR color_type(color rgb_color) FMT_NOEXCEPT : is_rgb(true), - value{} { - value.rgb_color = static_cast(rgb_color); + constexpr color_type() noexcept = default; + constexpr color_type(color rgb_color) noexcept + : value_(static_cast(rgb_color) | (1 << 24)) {} + constexpr color_type(rgb rgb_color) noexcept + : color_type(static_cast( + (static_cast(rgb_color.r) << 16) | + (static_cast(rgb_color.g) << 8) | rgb_color.b)) {} + constexpr color_type(terminal_color term_color) noexcept + : value_(static_cast(term_color) | (3 << 24)) {} + + constexpr auto is_terminal_color() const noexcept -> bool { + return (value_ & (1 << 25)) != 0; } - FMT_CONSTEXPR color_type(rgb rgb_color) FMT_NOEXCEPT : is_rgb(true), value{} { - value.rgb_color = (static_cast(rgb_color.r) << 16) | - (static_cast(rgb_color.g) << 8) | rgb_color.b; - } - FMT_CONSTEXPR color_type(terminal_color term_color) FMT_NOEXCEPT : is_rgb(), - value{} { - value.term_color = static_cast(term_color); + + constexpr auto value() const noexcept -> uint32_t { + return value_ & 0xFFFFFF; } - bool is_rgb; - union color_union { - uint8_t term_color; - uint32_t rgb_color; - } value; + + constexpr color_type(uint32_t value) noexcept : value_(value) {} + + uint32_t value_ = 0; }; -} // namespace internal +} // namespace detail -// Experimental text formatting support. +/// A text style consisting of foreground and background colors and emphasis. class text_style { - public: - FMT_CONSTEXPR text_style(emphasis em = emphasis()) FMT_NOEXCEPT - : set_foreground_color(), - set_background_color(), - ems(em) {} - - FMT_CONSTEXPR text_style& operator|=(const text_style& rhs) { - if (!set_foreground_color) { - set_foreground_color = rhs.set_foreground_color; - foreground_color = rhs.foreground_color; - } else if (rhs.set_foreground_color) { - if (!foreground_color.is_rgb || !rhs.foreground_color.is_rgb) - FMT_THROW(format_error("can't OR a terminal color")); - foreground_color.value.rgb_color |= rhs.foreground_color.value.rgb_color; - } + // The information is packed as follows: + // ┌──┐ + // │ 0│─┐ + // │..│ ├── foreground color value + // │23│─┘ + // ├──┤ + // │24│─┬── discriminator for the above value. 00 if unset, 01 if it's + // │25│─┘ an RGB color, or 11 if it's a terminal color (10 is unused) + // ├──┤ + // │26│──── overflow bit, always zero (see below) + // ├──┤ + // │27│─┐ + // │..│ │ + // │50│ │ + // ├──┤ │ + // │51│ ├── background color (same format as the foreground color) + // │52│ │ + // ├──┤ │ + // │53│─┘ + // ├──┤ + // │54│─┐ + // │..│ ├── emphases + // │61│─┘ + // ├──┤ + // │62│─┬── unused + // │63│─┘ + // └──┘ + // The overflow bits are there to make operator|= efficient. + // When ORing, we must throw if, for either the foreground or background, + // one style specifies a terminal color and the other specifies any color + // (terminal or RGB); in other words, if one discriminator is 11 and the + // other is 11 or 01. + // + // We do that check by adding the styles. Consider what adding does to each + // possible pair of discriminators: + // 00 + 00 = 000 + // 01 + 00 = 001 + // 11 + 00 = 011 + // 01 + 01 = 010 + // 11 + 01 = 100 (!!) + // 11 + 11 = 110 (!!) + // In the last two cases, the ones we want to catch, the third bit——the + // overflow bit——is set. Bingo. + // + // We must take into account the possible carry bit from the bits + // before the discriminator. The only potentially problematic case is + // 11 + 00 = 011 (a carry bit would make it 100, not good!), but a carry + // bit is impossible in that case, because 00 (unset color) means the + // 24 bits that precede the discriminator are all zero. + // + // This test can be applied to both colors simultaneously. - if (!set_background_color) { - set_background_color = rhs.set_background_color; - background_color = rhs.background_color; - } else if (rhs.set_background_color) { - if (!background_color.is_rgb || !rhs.background_color.is_rgb) - FMT_THROW(format_error("can't OR a terminal color")); - background_color.value.rgb_color |= rhs.background_color.value.rgb_color; - } + public: + FMT_CONSTEXPR text_style(emphasis em = emphasis()) noexcept + : style_(static_cast(em) << 54) {} - ems = static_cast(static_cast(ems) | - static_cast(rhs.ems)); + FMT_CONSTEXPR auto operator|=(text_style rhs) -> text_style& { + if (((style_ + rhs.style_) & ((1ULL << 26) | (1ULL << 53))) != 0) + report_error("can't OR a terminal color"); + style_ |= rhs.style_; return *this; } - friend FMT_CONSTEXPR text_style operator|(text_style lhs, - const text_style& rhs) { + friend FMT_CONSTEXPR auto operator|(text_style lhs, text_style rhs) + -> text_style { return lhs |= rhs; } - FMT_CONSTEXPR text_style& operator&=(const text_style& rhs) { - if (!set_foreground_color) { - set_foreground_color = rhs.set_foreground_color; - foreground_color = rhs.foreground_color; - } else if (rhs.set_foreground_color) { - if (!foreground_color.is_rgb || !rhs.foreground_color.is_rgb) - FMT_THROW(format_error("can't AND a terminal color")); - foreground_color.value.rgb_color &= rhs.foreground_color.value.rgb_color; - } - - if (!set_background_color) { - set_background_color = rhs.set_background_color; - background_color = rhs.background_color; - } else if (rhs.set_background_color) { - if (!background_color.is_rgb || !rhs.background_color.is_rgb) - FMT_THROW(format_error("can't AND a terminal color")); - background_color.value.rgb_color &= rhs.background_color.value.rgb_color; - } - - ems = static_cast(static_cast(ems) & - static_cast(rhs.ems)); - return *this; + FMT_CONSTEXPR auto operator==(text_style rhs) const noexcept -> bool { + return style_ == rhs.style_; } - friend FMT_CONSTEXPR text_style operator&(text_style lhs, - const text_style& rhs) { - return lhs &= rhs; + FMT_CONSTEXPR auto operator!=(text_style rhs) const noexcept -> bool { + return !(*this == rhs); } - FMT_CONSTEXPR bool has_foreground() const FMT_NOEXCEPT { - return set_foreground_color; + FMT_CONSTEXPR auto has_foreground() const noexcept -> bool { + return (style_ & (1 << 24)) != 0; } - FMT_CONSTEXPR bool has_background() const FMT_NOEXCEPT { - return set_background_color; + FMT_CONSTEXPR auto has_background() const noexcept -> bool { + return (style_ & (1ULL << 51)) != 0; } - FMT_CONSTEXPR bool has_emphasis() const FMT_NOEXCEPT { - return static_cast(ems) != 0; + FMT_CONSTEXPR auto has_emphasis() const noexcept -> bool { + return (style_ >> 54) != 0; } - FMT_CONSTEXPR internal::color_type get_foreground() const FMT_NOEXCEPT { - assert(has_foreground() && "no foreground specified for this style"); - return foreground_color; + FMT_CONSTEXPR auto get_foreground() const noexcept -> detail::color_type { + FMT_ASSERT(has_foreground(), "no foreground specified for this style"); + return style_ & 0x3FFFFFF; } - FMT_CONSTEXPR internal::color_type get_background() const FMT_NOEXCEPT { - assert(has_background() && "no background specified for this style"); - return background_color; + FMT_CONSTEXPR auto get_background() const noexcept -> detail::color_type { + FMT_ASSERT(has_background(), "no background specified for this style"); + return (style_ >> 27) & 0x3FFFFFF; } - FMT_CONSTEXPR emphasis get_emphasis() const FMT_NOEXCEPT { - assert(has_emphasis() && "no emphasis specified for this style"); - return ems; + FMT_CONSTEXPR auto get_emphasis() const noexcept -> emphasis { + FMT_ASSERT(has_emphasis(), "no emphasis specified for this style"); + return static_cast(style_ >> 54); } private: - FMT_CONSTEXPR text_style(bool is_foreground, - internal::color_type text_color) FMT_NOEXCEPT - : set_foreground_color(), - set_background_color(), - ems() { - if (is_foreground) { - foreground_color = text_color; - set_foreground_color = true; - } else { - background_color = text_color; - set_background_color = true; - } - } + FMT_CONSTEXPR text_style(uint64_t style) noexcept : style_(style) {} + + friend FMT_CONSTEXPR auto fg(detail::color_type foreground) noexcept + -> text_style; - friend FMT_CONSTEXPR_DECL text_style fg(internal::color_type foreground) - FMT_NOEXCEPT; - friend FMT_CONSTEXPR_DECL text_style bg(internal::color_type background) - FMT_NOEXCEPT; + friend FMT_CONSTEXPR auto bg(detail::color_type background) noexcept + -> text_style; - internal::color_type foreground_color; - internal::color_type background_color; - bool set_foreground_color; - bool set_background_color; - emphasis ems; + uint64_t style_ = 0; }; -FMT_CONSTEXPR text_style fg(internal::color_type foreground) FMT_NOEXCEPT { - return text_style(/*is_foreground=*/true, foreground); +/// Creates a text style from the foreground (text) color. +FMT_CONSTEXPR inline auto fg(detail::color_type foreground) noexcept + -> text_style { + return foreground.value_; } -FMT_CONSTEXPR text_style bg(internal::color_type background) FMT_NOEXCEPT { - return text_style(/*is_foreground=*/false, background); +/// Creates a text style from the background color. +FMT_CONSTEXPR inline auto bg(detail::color_type background) noexcept + -> text_style { + return static_cast(background.value_) << 27; } -FMT_CONSTEXPR text_style operator|(emphasis lhs, emphasis rhs) FMT_NOEXCEPT { +FMT_CONSTEXPR inline auto operator|(emphasis lhs, emphasis rhs) noexcept + -> text_style { return text_style(lhs) | rhs; } -namespace internal { +namespace detail { template struct ansi_color_escape { - FMT_CONSTEXPR ansi_color_escape(internal::color_type text_color, - const char* esc) FMT_NOEXCEPT { + FMT_CONSTEXPR ansi_color_escape(color_type text_color, + const char* esc) noexcept { // If we have a terminal color, we need to output another escape code // sequence. - if (!text_color.is_rgb) { - bool is_background = esc == internal::data::background_color; - uint32_t value = text_color.value.term_color; + if (text_color.is_terminal_color()) { + bool is_background = esc == string_view("\x1b[48;2;"); + uint32_t value = text_color.value(); // Background ASCII codes are the same as the foreground ones but with // 10 more. if (is_background) value += 10u; - std::size_t index = 0; - buffer[index++] = static_cast('\x1b'); - buffer[index++] = static_cast('['); + buffer[size++] = static_cast('\x1b'); + buffer[size++] = static_cast('['); if (value >= 100u) { - buffer[index++] = static_cast('1'); + buffer[size++] = static_cast('1'); value %= 100u; } - buffer[index++] = static_cast('0' + value / 10u); - buffer[index++] = static_cast('0' + value % 10u); + buffer[size++] = static_cast('0' + value / 10u); + buffer[size++] = static_cast('0' + value % 10u); - buffer[index++] = static_cast('m'); - buffer[index++] = static_cast('\0'); + buffer[size++] = static_cast('m'); return; } for (int i = 0; i < 7; i++) { buffer[i] = static_cast(esc[i]); } - rgb color(text_color.value.rgb_color); + rgb color(text_color.value()); to_esc(color.r, buffer + 7, ';'); to_esc(color.g, buffer + 11, ';'); to_esc(color.b, buffer + 15, 'm'); - buffer[19] = static_cast(0); + size = 19; } - FMT_CONSTEXPR ansi_color_escape(emphasis em) FMT_NOEXCEPT { - uint8_t em_codes[4] = {}; - uint8_t em_bits = static_cast(em); - if (em_bits & static_cast(emphasis::bold)) em_codes[0] = 1; - if (em_bits & static_cast(emphasis::italic)) em_codes[1] = 3; - if (em_bits & static_cast(emphasis::underline)) em_codes[2] = 4; - if (em_bits & static_cast(emphasis::strikethrough)) - em_codes[3] = 9; - - std::size_t index = 0; - for (int i = 0; i < 4; ++i) { + FMT_CONSTEXPR ansi_color_escape(emphasis em) noexcept { + uint8_t em_codes[num_emphases] = {}; + if (has_emphasis(em, emphasis::bold)) em_codes[0] = 1; + if (has_emphasis(em, emphasis::faint)) em_codes[1] = 2; + if (has_emphasis(em, emphasis::italic)) em_codes[2] = 3; + if (has_emphasis(em, emphasis::underline)) em_codes[3] = 4; + if (has_emphasis(em, emphasis::blink)) em_codes[4] = 5; + if (has_emphasis(em, emphasis::reverse)) em_codes[5] = 7; + if (has_emphasis(em, emphasis::conceal)) em_codes[6] = 8; + if (has_emphasis(em, emphasis::strikethrough)) em_codes[7] = 9; + + buffer[size++] = static_cast('\x1b'); + buffer[size++] = static_cast('['); + + for (size_t i = 0; i < num_emphases; ++i) { if (!em_codes[i]) continue; - buffer[index++] = static_cast('\x1b'); - buffer[index++] = static_cast('['); - buffer[index++] = static_cast('0' + em_codes[i]); - buffer[index++] = static_cast('m'); + buffer[size++] = static_cast('0' + em_codes[i]); + buffer[size++] = static_cast(';'); } - buffer[index++] = static_cast(0); + + buffer[size - 1] = static_cast('m'); } - FMT_CONSTEXPR operator const Char*() const FMT_NOEXCEPT { return buffer; } + FMT_CONSTEXPR operator const Char*() const noexcept { return buffer; } - FMT_CONSTEXPR const Char* begin() const FMT_NOEXCEPT { return buffer; } - FMT_CONSTEXPR const Char* end() const FMT_NOEXCEPT { - return buffer + std::strlen(buffer); + FMT_CONSTEXPR auto begin() const noexcept -> const Char* { return buffer; } + FMT_CONSTEXPR auto end() const noexcept -> const Char* { + return buffer + size; } private: - Char buffer[7u + 3u * 4u + 1u]; + static constexpr size_t num_emphases = 8; + Char buffer[7u + 4u * num_emphases] = {}; + size_t size = 0; static FMT_CONSTEXPR void to_esc(uint8_t c, Char* out, - char delimiter) FMT_NOEXCEPT { + char delimiter) noexcept { out[0] = static_cast('0' + c / 100); out[1] = static_cast('0' + c / 10 % 10); out[2] = static_cast('0' + c % 10); out[3] = static_cast(delimiter); } + static FMT_CONSTEXPR auto has_emphasis(emphasis em, emphasis mask) noexcept + -> bool { + return static_cast(em) & static_cast(mask); + } }; template -FMT_CONSTEXPR ansi_color_escape make_foreground_color( - internal::color_type foreground) FMT_NOEXCEPT { - return ansi_color_escape(foreground, internal::data::foreground_color); +FMT_CONSTEXPR auto make_foreground_color(color_type foreground) noexcept + -> ansi_color_escape { + return ansi_color_escape(foreground, "\x1b[38;2;"); } template -FMT_CONSTEXPR ansi_color_escape make_background_color( - internal::color_type background) FMT_NOEXCEPT { - return ansi_color_escape(background, internal::data::background_color); +FMT_CONSTEXPR auto make_background_color(color_type background) noexcept + -> ansi_color_escape { + return ansi_color_escape(background, "\x1b[48;2;"); } template -FMT_CONSTEXPR ansi_color_escape make_emphasis(emphasis em) FMT_NOEXCEPT { +FMT_CONSTEXPR auto make_emphasis(emphasis em) noexcept + -> ansi_color_escape { return ansi_color_escape(em); } -template -inline void fputs(const Char* chars, FILE* stream) FMT_NOEXCEPT { - std::fputs(chars, stream); -} - -template <> -inline void fputs(const wchar_t* chars, FILE* stream) FMT_NOEXCEPT { - std::fputws(chars, stream); +template inline void reset_color(buffer& buffer) { + auto reset_color = string_view("\x1b[0m"); + buffer.append(reset_color.begin(), reset_color.end()); } -template inline void reset_color(FILE* stream) FMT_NOEXCEPT { - fputs(internal::data::reset_color, stream); -} - -template <> inline void reset_color(FILE* stream) FMT_NOEXCEPT { - fputs(internal::data::wreset_color, stream); -} - -template -inline void reset_color(basic_memory_buffer& buffer) FMT_NOEXCEPT { - const char* begin = data::reset_color; - const char* end = begin + sizeof(data::reset_color) - 1; - buffer.append(begin, end); -} +template struct styled_arg : view { + const T& value; + text_style style; + styled_arg(const T& v, text_style s) : value(v), style(s) {} +}; template -std::basic_string vformat(const text_style& ts, - basic_string_view format_str, - basic_format_args > args) { - basic_memory_buffer buffer; - bool has_style = false; +void vformat_to(buffer& buf, text_style ts, basic_string_view fmt, + basic_format_args> args) { if (ts.has_emphasis()) { - has_style = true; - ansi_color_escape escape = make_emphasis(ts.get_emphasis()); - buffer.append(escape.begin(), escape.end()); + auto emphasis = make_emphasis(ts.get_emphasis()); + buf.append(emphasis.begin(), emphasis.end()); } if (ts.has_foreground()) { - has_style = true; - ansi_color_escape escape = - make_foreground_color(ts.get_foreground()); - buffer.append(escape.begin(), escape.end()); + auto foreground = make_foreground_color(ts.get_foreground()); + buf.append(foreground.begin(), foreground.end()); } if (ts.has_background()) { - has_style = true; - ansi_color_escape escape = - make_background_color(ts.get_background()); - buffer.append(escape.begin(), escape.end()); - } - internal::vformat_to(buffer, format_str, args); - if (has_style) { - reset_color(buffer); + auto background = make_background_color(ts.get_background()); + buf.append(background.begin(), background.end()); } - return fmt::to_string(buffer); + vformat_to(buf, fmt, args); + if (ts != text_style()) reset_color(buf); } -} // namespace internal +} // namespace detail -template > -void vprint(std::FILE* f, const text_style& ts, const S& format, - basic_format_args > args) { - bool has_style = false; - if (ts.has_emphasis()) { - has_style = true; - internal::fputs(internal::make_emphasis(ts.get_emphasis()), f); - } - if (ts.has_foreground()) { - has_style = true; - internal::fputs( - internal::make_foreground_color(ts.get_foreground()), f); - } - if (ts.has_background()) { - has_style = true; - internal::fputs( - internal::make_background_color(ts.get_background()), f); - } - vprint(f, format, args); - if (has_style) { - internal::reset_color(f); - } +inline void vprint(FILE* f, text_style ts, string_view fmt, format_args args) { + auto buf = memory_buffer(); + detail::vformat_to(buf, ts, fmt, args); + print(f, FMT_STRING("{}"), string_view(buf.begin(), buf.size())); } /** - Formats a string and prints it to the specified file stream using ANSI - escape sequences to specify text formatting. - Example: - fmt::print(fmt::emphasis::bold | fg(fmt::color::red), - "Elapsed time: {0:.2f} seconds", 1.23); + * Formats a string and prints it to the specified file stream using ANSI + * escape sequences to specify text formatting. + * + * **Example**: + * + * fmt::print(fmt::emphasis::bold | fg(fmt::color::red), + * "Elapsed time: {0:.2f} seconds", 1.23); */ -template ::value)> -void print(std::FILE* f, const text_style& ts, const S& format_str, - const Args&... args) { - internal::check_format_string(format_str); - using context = buffer_context >; - format_arg_store as{args...}; - vprint(f, ts, format_str, basic_format_args(as)); +template +void print(FILE* f, text_style ts, format_string fmt, T&&... args) { + vprint(f, ts, fmt.str, vargs{{args...}}); } /** - Formats a string and prints it to stdout using ANSI escape sequences to - specify text formatting. - Example: - fmt::print(fmt::emphasis::bold | fg(fmt::color::red), - "Elapsed time: {0:.2f} seconds", 1.23); + * Formats a string and prints it to stdout using ANSI escape sequences to + * specify text formatting. + * + * **Example**: + * + * fmt::print(fmt::emphasis::bold | fg(fmt::color::red), + * "Elapsed time: {0:.2f} seconds", 1.23); */ -template ::value)> -void print(const text_style& ts, const S& format_str, const Args&... args) { - return print(stdout, ts, format_str, args...); +template +void print(text_style ts, format_string fmt, T&&... args) { + return print(stdout, ts, fmt, std::forward(args)...); } -template > -inline std::basic_string vformat( - const text_style& ts, const S& format_str, - basic_format_args > args) { - return internal::vformat(ts, to_string_view(format_str), args); +inline auto vformat(text_style ts, string_view fmt, format_args args) + -> std::string { + auto buf = memory_buffer(); + detail::vformat_to(buf, ts, fmt, args); + return fmt::to_string(buf); } /** - \rst - Formats arguments and returns the result as a string using ANSI - escape sequences to specify text formatting. - - **Example**:: - - #include - std::string message = fmt::format(fmt::emphasis::bold | fg(fmt::color::red), - "The answer is {}", 42); - \endrst -*/ -template > -inline std::basic_string format(const text_style& ts, const S& format_str, - const Args&... args) { - return internal::vformat(ts, to_string_view(format_str), - {internal::make_args_checked(format_str, args...)}); + * Formats arguments and returns the result as a string using ANSI escape + * sequences to specify text formatting. + * + * **Example**: + * + * ``` + * #include + * std::string message = fmt::format(fmt::emphasis::bold | fg(fmt::color::red), + * "The answer is {}", 42); + * ``` + */ +template +inline auto format(text_style ts, format_string fmt, T&&... args) + -> std::string { + return fmt::vformat(ts, fmt.str, vargs{{args...}}); +} + +/// Formats a string with the given text_style and writes the output to `out`. +template ::value)> +auto vformat_to(OutputIt out, text_style ts, string_view fmt, format_args args) + -> OutputIt { + auto&& buf = detail::get_buffer(out); + detail::vformat_to(buf, ts, fmt, args); + return detail::get_iterator(buf, out); +} + +/** + * Formats arguments with the given text style, writes the result to the output + * iterator `out` and returns the iterator past the end of the output range. + * + * **Example**: + * + * std::vector out; + * fmt::format_to(std::back_inserter(out), + * fmt::emphasis::bold | fg(fmt::color::red), "{}", 42); + */ +template ::value)> +inline auto format_to(OutputIt out, text_style ts, format_string fmt, + T&&... args) -> OutputIt { + return vformat_to(out, ts, fmt.str, vargs{{args...}}); +} + +template +struct formatter, Char> : formatter { + template + auto format(const detail::styled_arg& arg, FormatContext& ctx) const + -> decltype(ctx.out()) { + const auto& ts = arg.style; + auto out = ctx.out(); + + bool has_style = false; + if (ts.has_emphasis()) { + has_style = true; + auto emphasis = detail::make_emphasis(ts.get_emphasis()); + out = detail::copy(emphasis.begin(), emphasis.end(), out); + } + if (ts.has_foreground()) { + has_style = true; + auto foreground = + detail::make_foreground_color(ts.get_foreground()); + out = detail::copy(foreground.begin(), foreground.end(), out); + } + if (ts.has_background()) { + has_style = true; + auto background = + detail::make_background_color(ts.get_background()); + out = detail::copy(background.begin(), background.end(), out); + } + out = formatter::format(arg.value, ctx); + if (has_style) { + auto reset_color = string_view("\x1b[0m"); + out = detail::copy(reset_color.begin(), reset_color.end(), out); + } + return out; + } +}; + +/** + * Returns an argument that will be formatted using ANSI escape sequences, + * to be used in a formatting function. + * + * **Example**: + * + * fmt::print("Elapsed time: {0:.2f} seconds", + * fmt::styled(1.23, fmt::fg(fmt::color::green) | + * fmt::bg(fmt::color::blue))); + */ +template +FMT_CONSTEXPR auto styled(const T& value, text_style ts) + -> detail::styled_arg> { + return detail::styled_arg>{value, ts}; } +FMT_END_EXPORT FMT_END_NAMESPACE #endif // FMT_COLOR_H_ diff --git a/Source/ThirdParty/spdlog/fmt/bundled/compile.h b/Source/ThirdParty/spdlog/fmt/bundled/compile.h index 82625bbc6..64eb7a20d 100644 --- a/Source/ThirdParty/spdlog/fmt/bundled/compile.h +++ b/Source/ThirdParty/spdlog/fmt/bundled/compile.h @@ -8,459 +8,581 @@ #ifndef FMT_COMPILE_H_ #define FMT_COMPILE_H_ -#include +#ifndef FMT_MODULE +# include // std::back_inserter +#endif + #include "format.h" FMT_BEGIN_NAMESPACE -namespace internal { +FMT_BEGIN_EXPORT + +// A compile-time string which is compiled into fast formatting code. +class compiled_string {}; + +template +struct is_compiled_string : std::is_base_of {}; + +/** + * Converts a string literal `s` into a format string that will be parsed at + * compile time and converted into efficient formatting code. Requires C++17 + * `constexpr if` compiler support. + * + * **Example**: + * + * // Converts 42 into std::string using the most efficient method and no + * // runtime format string processing. + * std::string s = fmt::format(FMT_COMPILE("{}"), 42); + */ +#if defined(__cpp_if_constexpr) && defined(__cpp_return_type_deduction) +# define FMT_COMPILE(s) FMT_STRING_IMPL(s, fmt::compiled_string) +#else +# define FMT_COMPILE(s) FMT_STRING(s) +#endif -template struct format_part { - public: - struct named_argument_id { - FMT_CONSTEXPR named_argument_id(internal::string_view_metadata id) - : id(id) {} - internal::string_view_metadata id; - }; - - struct argument_id { - FMT_CONSTEXPR argument_id() : argument_id(0u) {} - - FMT_CONSTEXPR argument_id(unsigned id) - : which(which_arg_id::index), val(id) {} - - FMT_CONSTEXPR argument_id(internal::string_view_metadata id) - : which(which_arg_id::named_index), val(id) {} - - enum class which_arg_id { index, named_index }; - - which_arg_id which; - - union value { - FMT_CONSTEXPR value() : index(0u) {} - FMT_CONSTEXPR value(unsigned id) : index(id) {} - FMT_CONSTEXPR value(internal::string_view_metadata id) - : named_index(id) {} - - unsigned index; - internal::string_view_metadata named_index; - } val; - }; - - struct specification { - FMT_CONSTEXPR specification() : arg_id(0u) {} - FMT_CONSTEXPR specification(unsigned id) : arg_id(id) {} - - FMT_CONSTEXPR specification(internal::string_view_metadata id) - : arg_id(id) {} - - argument_id arg_id; - internal::dynamic_format_specs parsed_specs; - }; - - FMT_CONSTEXPR format_part() - : which(kind::argument_id), end_of_argument_id(0u), val(0u) {} - - FMT_CONSTEXPR format_part(internal::string_view_metadata text) - : which(kind::text), end_of_argument_id(0u), val(text) {} - - FMT_CONSTEXPR format_part(unsigned id) - : which(kind::argument_id), end_of_argument_id(0u), val(id) {} - - FMT_CONSTEXPR format_part(named_argument_id arg_id) - : which(kind::named_argument_id), end_of_argument_id(0u), val(arg_id) {} - - FMT_CONSTEXPR format_part(specification spec) - : which(kind::specification), end_of_argument_id(0u), val(spec) {} - - enum class kind { argument_id, named_argument_id, text, specification }; - - kind which; - std::size_t end_of_argument_id; - union value { - FMT_CONSTEXPR value() : arg_id(0u) {} - FMT_CONSTEXPR value(unsigned id) : arg_id(id) {} - FMT_CONSTEXPR value(named_argument_id named_id) - : named_arg_id(named_id.id) {} - FMT_CONSTEXPR value(internal::string_view_metadata t) : text(t) {} - FMT_CONSTEXPR value(specification s) : spec(s) {} - unsigned arg_id; - internal::string_view_metadata named_arg_id; - internal::string_view_metadata text; - specification spec; - } val; -}; +/** + * Converts a string literal into a format string that will be parsed at + * compile time and converted into efficient formatting code. Requires support + * for class types in constant template parameters (a C++20 feature). + * + * **Example**: + * + * // Converts 42 into std::string using the most efficient method and no + * // runtime format string processing. + * using namespace fmt::literals; + * std::string s = fmt::format("{}"_cf, 42); + */ +#if FMT_USE_NONTYPE_TEMPLATE_ARGS +inline namespace literals { +template constexpr auto operator""_cf() { + return FMT_COMPILE(Str.data); +} +} // namespace literals +#endif -template -class format_preparation_handler : public internal::error_handler { - private: - using part = format_part; +FMT_END_EXPORT - public: - using iterator = typename basic_string_view::iterator; +namespace detail { - FMT_CONSTEXPR format_preparation_handler(basic_string_view format, - PartsContainer& parts) - : parts_(parts), format_(format), parse_context_(format) {} +template +constexpr auto first(const T& value, const Tail&...) -> const T& { + return value; +} - FMT_CONSTEXPR void on_text(const Char* begin, const Char* end) { - if (begin == end) return; - const auto offset = begin - format_.data(); - const auto size = end - begin; - parts_.push_back(part(string_view_metadata(offset, size))); - } +#if defined(__cpp_if_constexpr) && defined(__cpp_return_type_deduction) +template struct type_list {}; + +// Returns a reference to the argument at index N from [first, rest...]. +template +constexpr auto get([[maybe_unused]] const T& first, + [[maybe_unused]] const Args&... rest) -> const auto& { + static_assert(N < 1 + sizeof...(Args), "index is out of bounds"); + if constexpr (N == 0) + return first; + else + return detail::get(rest...); +} - FMT_CONSTEXPR void on_arg_id() { - parts_.push_back(part(parse_context_.next_arg_id())); +# if FMT_USE_NONTYPE_TEMPLATE_ARGS +template +constexpr auto get_arg_index_by_name(basic_string_view name) -> int { + if constexpr (is_static_named_arg()) { + if (name == T::name) return N; } + if constexpr (sizeof...(Args) > 0) + return get_arg_index_by_name(name); + (void)name; // Workaround an MSVC bug about "unused" parameter. + return -1; +} +# endif + +template +FMT_CONSTEXPR auto get_arg_index_by_name(basic_string_view name) -> int { +# if FMT_USE_NONTYPE_TEMPLATE_ARGS + if constexpr (sizeof...(Args) > 0) + return get_arg_index_by_name<0, Args...>(name); +# endif + (void)name; + return -1; +} - FMT_CONSTEXPR void on_arg_id(unsigned id) { - parse_context_.check_arg_id(id); - parts_.push_back(part(id)); - } +template +constexpr auto get_arg_index_by_name(basic_string_view name, + type_list) -> int { + return get_arg_index_by_name(name); +} - FMT_CONSTEXPR void on_arg_id(basic_string_view id) { - const auto view = string_view_metadata(format_, id); - const auto arg_id = typename part::named_argument_id(view); - parts_.push_back(part(arg_id)); - } +template struct get_type_impl; - FMT_CONSTEXPR void on_replacement_field(const Char* ptr) { - parts_.back().end_of_argument_id = ptr - format_.begin(); - } +template struct get_type_impl> { + using type = + remove_cvref_t(std::declval()...))>; +}; - FMT_CONSTEXPR const Char* on_format_specs(const Char* begin, - const Char* end) { - const auto specs_offset = to_unsigned(begin - format_.begin()); - - using parse_context = basic_parse_context; - internal::dynamic_format_specs parsed_specs; - dynamic_specs_handler handler(parsed_specs, parse_context_); - begin = parse_format_specs(begin, end, handler); - - if (*begin != '}') on_error("missing '}' in format string"); - - auto& last_part = parts_.back(); - auto specs = last_part.which == part::kind::argument_id - ? typename part::specification(last_part.val.arg_id) - : typename part::specification(last_part.val.named_arg_id); - specs.parsed_specs = parsed_specs; - last_part = part(specs); - last_part.end_of_argument_id = specs_offset; - return begin; - } +template +using get_type = typename get_type_impl::type; - private: - PartsContainer& parts_; - basic_string_view format_; - basic_parse_context parse_context_; -}; +template struct is_compiled_format : std::false_type {}; -template -class prepared_format { - public: - using char_type = char_t; - using format_part_t = format_part; - - constexpr prepared_format(Format f) - : format_(std::move(f)), parts_provider_(to_string_view(format_)) {} - - prepared_format() = delete; - - using context = buffer_context; - - template - auto vformat_to(Range out, basic_format_args args) const -> - typename Context::iterator { - const auto format_view = internal::to_string_view(format_); - basic_parse_context parse_ctx(format_view); - Context ctx(out.begin(), args); - - const auto& parts = parts_provider_.parts(); - for (auto part_it = parts.begin(); part_it != parts.end(); ++part_it) { - const auto& part = *part_it; - const auto& value = part.val; - - switch (part.which) { - case format_part_t::kind::text: { - const auto text = value.text.to_view(format_view.data()); - auto output = ctx.out(); - auto&& it = internal::reserve(output, text.size()); - it = std::copy_n(text.begin(), text.size(), it); - ctx.advance_to(output); - } break; - - case format_part_t::kind::argument_id: { - advance_parse_context_to_specification(parse_ctx, part); - format_arg(parse_ctx, ctx, value.arg_id); - } break; - - case format_part_t::kind::named_argument_id: { - advance_parse_context_to_specification(parse_ctx, part); - const auto named_arg_id = - value.named_arg_id.to_view(format_view.data()); - format_arg(parse_ctx, ctx, named_arg_id); - } break; - case format_part_t::kind::specification: { - const auto& arg_id_value = value.spec.arg_id.val; - const auto arg = value.spec.arg_id.which == - format_part_t::argument_id::which_arg_id::index - ? ctx.arg(arg_id_value.index) - : ctx.arg(arg_id_value.named_index.to_view( - to_string_view(format_).data())); - - auto specs = value.spec.parsed_specs; - - handle_dynamic_spec( - specs.width, specs.width_ref, ctx, format_view.begin()); - handle_dynamic_spec( - specs.precision, specs.precision_ref, ctx, format_view.begin()); - - check_prepared_specs(specs, arg.type()); - advance_parse_context_to_specification(parse_ctx, part); - ctx.advance_to( - visit_format_arg(arg_formatter(ctx, nullptr, &specs), arg)); - } break; - } - } +template struct text { + basic_string_view data; + using char_type = Char; - return ctx.out(); + template + constexpr auto format(OutputIt out, const T&...) const -> OutputIt { + return write(out, data); } +}; - private: - void advance_parse_context_to_specification( - basic_parse_context& parse_ctx, - const format_part_t& part) const { - const auto view = to_string_view(format_); - const auto specification_begin = view.data() + part.end_of_argument_id; - advance_to(parse_ctx, specification_begin); - } +template +struct is_compiled_format> : std::true_type {}; - template - void format_arg(basic_parse_context& parse_ctx, Context& ctx, - Id arg_id) const { - parse_ctx.check_arg_id(arg_id); - const auto stopped_at = - visit_format_arg(arg_formatter(ctx), ctx.arg(arg_id)); - ctx.advance_to(stopped_at); - } +template +constexpr auto make_text(basic_string_view s, size_t pos, size_t size) + -> text { + return {{&s[pos], size}}; +} - template - void check_prepared_specs(const basic_format_specs& specs, - internal::type arg_type) const { - internal::error_handler h; - numeric_specs_checker checker(h, arg_type); - if (specs.align == align::numeric) checker.require_numeric_argument(); - if (specs.sign != sign::none) checker.check_sign(); - if (specs.alt) checker.require_numeric_argument(); - if (specs.precision >= 0) checker.check_precision(); - } +template struct code_unit { + Char value; + using char_type = Char; - private: - Format format_; - PreparedPartsProvider parts_provider_; + template + constexpr auto format(OutputIt out, const T&...) const -> OutputIt { + *out++ = value; + return out; + } }; -template struct part_counter { - unsigned num_parts = 0; +// This ensures that the argument type is convertible to `const T&`. +template +constexpr auto get_arg_checked(const Args&... args) -> const T& { + const auto& arg = detail::get(args...); + if constexpr (detail::is_named_arg>()) { + return arg.value; + } else { + return arg; + } +} - FMT_CONSTEXPR void on_text(const Char* begin, const Char* end) { - if (begin != end) ++num_parts; +template +struct is_compiled_format> : std::true_type {}; + +// A replacement field that refers to argument N. +template struct field { + using char_type = Char; + + template + constexpr auto format(OutputIt out, const T&... args) const -> OutputIt { + const V& arg = get_arg_checked(args...); + if constexpr (std::is_convertible>::value) { + auto s = basic_string_view(arg); + return copy(s.begin(), s.end(), out); + } else { + return write(out, arg); + } } +}; - FMT_CONSTEXPR void on_arg_id() { ++num_parts; } - FMT_CONSTEXPR void on_arg_id(unsigned) { ++num_parts; } - FMT_CONSTEXPR void on_arg_id(basic_string_view) { ++num_parts; } - - FMT_CONSTEXPR void on_replacement_field(const Char*) {} - - FMT_CONSTEXPR const Char* on_format_specs(const Char* begin, - const Char* end) { - // Find the matching brace. - unsigned braces_counter = 0; - for (; begin != end; ++begin) { - if (*begin == '{') { - ++braces_counter; - } else if (*begin == '}') { - if (braces_counter == 0u) break; - --braces_counter; +template +struct is_compiled_format> : std::true_type {}; + +// A replacement field that refers to argument with name. +template struct runtime_named_field { + using char_type = Char; + basic_string_view name; + + template + constexpr static auto try_format_argument( + OutputIt& out, + // [[maybe_unused]] due to unused-but-set-parameter warning in GCC 7,8,9 + [[maybe_unused]] basic_string_view arg_name, const T& arg) -> bool { + if constexpr (is_named_arg::type>::value) { + if (arg_name == arg.name) { + out = write(out, arg.value); + return true; } } - return begin; + return false; } - FMT_CONSTEXPR void on_error(const char*) {} + template + constexpr auto format(OutputIt out, const T&... args) const -> OutputIt { + bool found = (try_format_argument(out, name, args) || ...); + if (!found) { + FMT_THROW(format_error("argument with specified name is not found")); + } + return out; + } }; -template class compiletime_prepared_parts_type_provider { - private: - using char_type = char_t; - - static FMT_CONSTEXPR unsigned count_parts() { - FMT_CONSTEXPR_DECL const auto text = to_string_view(Format{}); - part_counter counter; - internal::parse_format_string(text, counter); - return counter.num_parts; +template +struct is_compiled_format> : std::true_type {}; + +// A replacement field that refers to argument N and has format specifiers. +template struct spec_field { + using char_type = Char; + formatter fmt; + + template + constexpr FMT_INLINE auto format(OutputIt out, const T&... args) const + -> OutputIt { + const auto& vargs = + fmt::make_format_args>(args...); + basic_format_context ctx(out, vargs); + return fmt.format(get_arg_checked(args...), ctx); } +}; -// Workaround for old compilers. Compiletime parts preparation will not be -// performed with them anyway. -#if FMT_USE_CONSTEXPR - static FMT_CONSTEXPR_DECL const unsigned number_of_format_parts = - compiletime_prepared_parts_type_provider::count_parts(); -#else - static const unsigned number_of_format_parts = 0u; -#endif +template +struct is_compiled_format> : std::true_type {}; - public: - template struct format_parts_array { - using value_type = format_part; +template struct concat { + L lhs; + R rhs; + using char_type = typename L::char_type; - FMT_CONSTEXPR format_parts_array() : arr{} {} + template + constexpr auto format(OutputIt out, const T&... args) const -> OutputIt { + out = lhs.format(out, args...); + return rhs.format(out, args...); + } +}; - FMT_CONSTEXPR value_type& operator[](unsigned ind) { return arr[ind]; } +template +struct is_compiled_format> : std::true_type {}; - FMT_CONSTEXPR const value_type* begin() const { return arr; } - FMT_CONSTEXPR const value_type* end() const { return begin() + N; } +template +constexpr auto make_concat(L lhs, R rhs) -> concat { + return {lhs, rhs}; +} - private: - value_type arr[N]; - }; +struct unknown_format {}; - struct empty { - // Parts preparator will search for it - using value_type = format_part; - }; +template +constexpr auto parse_text(basic_string_view str, size_t pos) -> size_t { + for (size_t size = str.size(); pos != size; ++pos) { + if (str[pos] == '{' || str[pos] == '}') break; + } + return pos; +} - using type = conditional_t, empty>; -}; +template +constexpr auto compile_format_string(S fmt); + +template +constexpr auto parse_tail(T head, S fmt) { + if constexpr (POS != basic_string_view(fmt).size()) { + constexpr auto tail = compile_format_string(fmt); + if constexpr (std::is_same, + unknown_format>()) + return tail; + else + return make_concat(head, tail); + } else { + return head; + } +} -template class compiletime_prepared_parts_collector { - private: - using format_part = typename Parts::value_type; +template struct parse_specs_result { + formatter fmt; + size_t end; + int next_arg_id; +}; - public: - FMT_CONSTEXPR explicit compiletime_prepared_parts_collector(Parts& parts) - : parts_{parts}, counter_{0u} {} +enum { manual_indexing_id = -1 }; + +template +constexpr auto parse_specs(basic_string_view str, size_t pos, + int next_arg_id) -> parse_specs_result { + str.remove_prefix(pos); + auto ctx = + compile_parse_context(str, max_value(), nullptr, next_arg_id); + auto f = formatter(); + auto end = f.parse(ctx); + return {f, pos + fmt::detail::to_unsigned(end - str.data()), + next_arg_id == 0 ? manual_indexing_id : ctx.next_arg_id()}; +} - FMT_CONSTEXPR void push_back(format_part part) { parts_[counter_++] = part; } +template struct arg_id_handler { + arg_id_kind kind; + arg_ref arg_id; - FMT_CONSTEXPR format_part& back() { return parts_[counter_ - 1]; } + constexpr auto on_auto() -> int { + FMT_ASSERT(false, "handler cannot be used with automatic indexing"); + return 0; + } + constexpr auto on_index(int id) -> int { + kind = arg_id_kind::index; + arg_id = arg_ref(id); + return 0; + } + constexpr auto on_name(basic_string_view id) -> int { + kind = arg_id_kind::name; + arg_id = arg_ref(id); + return 0; + } +}; - private: - Parts& parts_; - unsigned counter_; +template struct parse_arg_id_result { + arg_id_kind kind; + arg_ref arg_id; + const Char* arg_id_end; }; -template -FMT_CONSTEXPR PartsContainer prepare_parts(basic_string_view format) { - PartsContainer parts; - internal::parse_format_string( - format, format_preparation_handler(format, parts)); - return parts; +template +constexpr auto parse_arg_id(const Char* begin, const Char* end) { + auto handler = arg_id_handler{arg_id_kind::none, arg_ref{}}; + auto arg_id_end = parse_arg_id(begin, end, handler); + return parse_arg_id_result{handler.kind, handler.arg_id, arg_id_end}; } -template -FMT_CONSTEXPR PartsContainer -prepare_compiletime_parts(basic_string_view format) { - using collector = compiletime_prepared_parts_collector; - - PartsContainer parts; - collector c(parts); - internal::parse_format_string( - format, format_preparation_handler(format, c)); - return parts; -} +template struct field_type { + using type = remove_cvref_t; +}; -template class runtime_parts_provider { - public: - runtime_parts_provider() = delete; - template - runtime_parts_provider(basic_string_view format) - : parts_(prepare_parts(format)) {} +template +struct field_type::value>> { + using type = remove_cvref_t; +}; - const PartsContainer& parts() const { return parts_; } +template +constexpr auto parse_replacement_field_then_tail(S fmt) { + using char_type = typename S::char_type; + constexpr auto str = basic_string_view(fmt); + constexpr char_type c = END_POS != str.size() ? str[END_POS] : char_type(); + if constexpr (c == '}') { + return parse_tail( + field::type, ARG_INDEX>(), fmt); + } else if constexpr (c != ':') { + FMT_THROW(format_error("expected ':'")); + } else { + constexpr auto result = parse_specs::type>( + str, END_POS + 1, NEXT_ID == manual_indexing_id ? 0 : NEXT_ID); + if constexpr (result.end >= str.size() || str[result.end] != '}') { + FMT_THROW(format_error("expected '}'")); + return 0; + } else { + return parse_tail( + spec_field::type, ARG_INDEX>{ + result.fmt}, + fmt); + } + } +} - private: - PartsContainer parts_; -}; +// Compiles a non-empty format string and returns the compiled representation +// or unknown_format() on unrecognized input. +template +constexpr auto compile_format_string(S fmt) { + using char_type = typename S::char_type; + constexpr auto str = basic_string_view(fmt); + if constexpr (str[POS] == '{') { + if constexpr (POS + 1 == str.size()) + FMT_THROW(format_error("unmatched '{' in format string")); + if constexpr (str[POS + 1] == '{') { + return parse_tail(make_text(str, POS, 1), fmt); + } else if constexpr (str[POS + 1] == '}' || str[POS + 1] == ':') { + static_assert(ID != manual_indexing_id, + "cannot switch from manual to automatic argument indexing"); + constexpr auto next_id = + ID != manual_indexing_id ? ID + 1 : manual_indexing_id; + return parse_replacement_field_then_tail, Args, + POS + 1, ID, next_id>(fmt); + } else { + constexpr auto arg_id_result = + parse_arg_id(str.data() + POS + 1, str.data() + str.size()); + constexpr auto arg_id_end_pos = arg_id_result.arg_id_end - str.data(); + constexpr char_type c = + arg_id_end_pos != str.size() ? str[arg_id_end_pos] : char_type(); + static_assert(c == '}' || c == ':', "missing '}' in format string"); + if constexpr (arg_id_result.kind == arg_id_kind::index) { + static_assert( + ID == manual_indexing_id || ID == 0, + "cannot switch from automatic to manual argument indexing"); + constexpr auto arg_index = arg_id_result.arg_id.index; + return parse_replacement_field_then_tail, + Args, arg_id_end_pos, + arg_index, manual_indexing_id>( + fmt); + } else if constexpr (arg_id_result.kind == arg_id_kind::name) { + constexpr auto arg_index = + get_arg_index_by_name(arg_id_result.arg_id.name, Args{}); + if constexpr (arg_index >= 0) { + constexpr auto next_id = + ID != manual_indexing_id ? ID + 1 : manual_indexing_id; + return parse_replacement_field_then_tail< + decltype(get_type::value), Args, arg_id_end_pos, + arg_index, next_id>(fmt); + } else if constexpr (c == '}') { + return parse_tail( + runtime_named_field{arg_id_result.arg_id.name}, fmt); + } else if constexpr (c == ':') { + return unknown_format(); // no type info for specs parsing + } + } + } + } else if constexpr (str[POS] == '}') { + if constexpr (POS + 1 == str.size()) + FMT_THROW(format_error("unmatched '}' in format string")); + return parse_tail(make_text(str, POS, 1), fmt); + } else { + constexpr auto end = parse_text(str, POS + 1); + if constexpr (end - POS > 1) { + return parse_tail(make_text(str, POS, end - POS), fmt); + } else { + return parse_tail(code_unit{str[POS]}, fmt); + } + } +} -template -struct compiletime_parts_provider { - compiletime_parts_provider() = delete; - template - FMT_CONSTEXPR compiletime_parts_provider(basic_string_view) {} +template ::value)> +constexpr auto compile(S fmt) { + constexpr auto str = basic_string_view(fmt); + if constexpr (str.size() == 0) { + return detail::make_text(str, 0, 0); + } else { + constexpr auto result = + detail::compile_format_string, 0, 0>(fmt); + return result; + } +} +#endif // defined(__cpp_if_constexpr) && defined(__cpp_return_type_deduction) +} // namespace detail + +FMT_BEGIN_EXPORT + +#if defined(__cpp_if_constexpr) && defined(__cpp_return_type_deduction) + +template ::value)> +FMT_INLINE FMT_CONSTEXPR_STRING auto format(const CompiledFormat& cf, + const T&... args) + -> std::basic_string { + auto s = std::basic_string(); + cf.format(std::back_inserter(s), args...); + return s; +} - const PartsContainer& parts() const { - static FMT_CONSTEXPR_DECL const PartsContainer prepared_parts = - prepare_compiletime_parts( - internal::to_string_view(Format{})); +template ::value)> +constexpr FMT_INLINE auto format_to(OutputIt out, const CompiledFormat& cf, + const T&... args) -> OutputIt { + return cf.format(out, args...); +} - return prepared_parts; +template ::value)> +FMT_INLINE FMT_CONSTEXPR_STRING auto format(const S&, T&&... args) + -> std::basic_string { + if constexpr (std::is_same::value) { + constexpr auto str = basic_string_view(S()); + if constexpr (str.size() == 2 && str[0] == '{' && str[1] == '}') { + const auto& first = detail::first(args...); + if constexpr (detail::is_named_arg< + remove_cvref_t>::value) { + return fmt::to_string(first.value); + } else { + return fmt::to_string(first); + } + } } -}; -} // namespace internal + constexpr auto compiled = detail::compile(S()); + if constexpr (std::is_same, + detail::unknown_format>()) { + return fmt::format( + static_cast>(S()), + std::forward(args)...); + } else { + return fmt::format(compiled, std::forward(args)...); + } +} -#if FMT_USE_CONSTEXPR -template ::value)> -FMT_CONSTEXPR auto compile(S format_str) -> internal::prepared_format< - S, - internal::compiletime_parts_provider< - S, - typename internal::compiletime_prepared_parts_type_provider::type>, - Args...> { - return format_str; +template ::value)> +FMT_CONSTEXPR auto format_to(OutputIt out, const S&, T&&... args) -> OutputIt { + constexpr auto compiled = detail::compile(S()); + if constexpr (std::is_same, + detail::unknown_format>()) { + return fmt::format_to( + out, static_cast>(S()), + std::forward(args)...); + } else { + return fmt::format_to(out, compiled, std::forward(args)...); + } } #endif -template -auto compile(const Char (&format_str)[N]) -> internal::prepared_format< - std::basic_string, - internal::runtime_parts_provider>>, - Args...> { - return std::basic_string(format_str, N - 1); +template ::value)> +auto format_to_n(OutputIt out, size_t n, const S& fmt, T&&... args) + -> format_to_n_result { + using traits = detail::fixed_buffer_traits; + auto buf = detail::iterator_buffer(out, n); + fmt::format_to(std::back_inserter(buf), fmt, std::forward(args)...); + return {buf.out(), buf.count()}; } -template -std::basic_string format(const CompiledFormat& cf, const Args&... args) { - basic_memory_buffer buffer; - using range = internal::buffer_range; - using context = buffer_context; - cf.template vformat_to(range(buffer), - {make_format_args(args...)}); - return to_string(buffer); +template ::value)> +FMT_CONSTEXPR20 auto formatted_size(const S& fmt, T&&... args) -> size_t { + auto buf = detail::counting_buffer<>(); + fmt::format_to(appender(buf), fmt, std::forward(args)...); + return buf.count(); } -template -OutputIt format_to(OutputIt out, const CompiledFormat& cf, - const Args&... args) { - using char_type = typename CompiledFormat::char_type; - using range = internal::output_range; - using context = format_context_t; - return cf.template vformat_to( - range(out), {make_format_args(args...)}); +template ::value)> +void print(std::FILE* f, const S& fmt, T&&... args) { + auto buf = memory_buffer(); + fmt::format_to(appender(buf), fmt, std::forward(args)...); + detail::print(f, {buf.data(), buf.size()}); } -template ::value)> -format_to_n_result format_to_n(OutputIt out, size_t n, - const CompiledFormat& cf, - const Args&... args) { - auto it = - format_to(internal::truncating_iterator(out, n), cf, args...); - return {it.base(), it.count()}; +template ::value)> +void print(const S& fmt, T&&... args) { + print(stdout, fmt, std::forward(args)...); } -template -std::size_t formatted_size(const CompiledFormat& cf, const Args&... args) { - return fmt::format_to( - internal::counting_iterator(), - cf, args...) - .count(); -} +template class static_format_result { + private: + char data[N]; + + public: + template ::value)> + explicit FMT_CONSTEXPR static_format_result(const S& fmt, T&&... args) { + *fmt::format_to(data, fmt, std::forward(args)...) = '\0'; + } + + auto str() const -> fmt::string_view { return {data, N - 1}; } + auto c_str() const -> const char* { return data; } +}; +/** + * Formats arguments according to the format string `fmt_str` and produces + * a string of the exact required size at compile time. Both the format string + * and the arguments must be compile-time expressions. + * + * The resulting string can be accessed as a C string via `c_str()` or as + * a `fmt::string_view` via `str()`. + * + * **Example**: + * + * // Produces the static string "42" at compile time. + * static constexpr auto result = FMT_STATIC_FORMAT("{}", 42); + * const char* s = result.c_str(); + */ +#define FMT_STATIC_FORMAT(fmt_str, ...) \ + fmt::static_format_result< \ + fmt::formatted_size(FMT_COMPILE(fmt_str), __VA_ARGS__) + 1>( \ + FMT_COMPILE(fmt_str), __VA_ARGS__) + +FMT_END_EXPORT FMT_END_NAMESPACE #endif // FMT_COMPILE_H_ diff --git a/Source/ThirdParty/spdlog/fmt/bundled/core.h b/Source/ThirdParty/spdlog/fmt/bundled/core.h index bcce2f50e..8ca735f0c 100644 --- a/Source/ThirdParty/spdlog/fmt/bundled/core.h +++ b/Source/ThirdParty/spdlog/fmt/bundled/core.h @@ -1,1414 +1,5 @@ -// Formatting library for C++ - the core API -// -// Copyright (c) 2012 - present, Victor Zverovich -// All rights reserved. -// -// For the license information refer to format.h. +// This file is only provided for compatibility and may be removed in future +// versions. Use fmt/base.h if you don't need fmt::format and fmt/format.h +// otherwise. -#ifndef FMT_CORE_H_ -#define FMT_CORE_H_ - -#include -#include // std::FILE -#include -#include -#include -#include - -// The fmt library version in the form major * 10000 + minor * 100 + patch. -#define FMT_VERSION 60000 - -#ifdef __has_feature -# define FMT_HAS_FEATURE(x) __has_feature(x) -#else -# define FMT_HAS_FEATURE(x) 0 -#endif - -#if defined(__has_include) && !defined(__INTELLISENSE__) && \ - !(defined(__INTEL_COMPILER) && __INTEL_COMPILER < 1600) -# define FMT_HAS_INCLUDE(x) __has_include(x) -#else -# define FMT_HAS_INCLUDE(x) 0 -#endif - -#ifdef __has_cpp_attribute -# define FMT_HAS_CPP_ATTRIBUTE(x) __has_cpp_attribute(x) -#else -# define FMT_HAS_CPP_ATTRIBUTE(x) 0 -#endif - -#if defined(__GNUC__) && !defined(__clang__) -# define FMT_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__) -#else -# define FMT_GCC_VERSION 0 -#endif - -#if __cplusplus >= 201103L || defined(__GXX_EXPERIMENTAL_CXX0X__) -# define FMT_HAS_GXX_CXX11 FMT_GCC_VERSION -#else -# define FMT_HAS_GXX_CXX11 0 -#endif - -#ifdef _MSC_VER -# define FMT_MSC_VER _MSC_VER -#else -# define FMT_MSC_VER 0 -#endif - -// Check if relaxed C++14 constexpr is supported. -// GCC doesn't allow throw in constexpr until version 6 (bug 67371). -#ifndef FMT_USE_CONSTEXPR -# define FMT_USE_CONSTEXPR \ - (FMT_HAS_FEATURE(cxx_relaxed_constexpr) || FMT_MSC_VER >= 1910 || \ - (FMT_GCC_VERSION >= 600 && __cplusplus >= 201402L)) -#endif -#if FMT_USE_CONSTEXPR -# define FMT_CONSTEXPR constexpr -# define FMT_CONSTEXPR_DECL constexpr -#else -# define FMT_CONSTEXPR inline -# define FMT_CONSTEXPR_DECL -#endif - -#ifndef FMT_OVERRIDE -# if FMT_HAS_FEATURE(cxx_override) || \ - (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11) || FMT_MSC_VER >= 1900 -# define FMT_OVERRIDE override -# else -# define FMT_OVERRIDE -# endif -#endif - -// Check if exceptions are disabled. -#ifndef FMT_EXCEPTIONS -# if (defined(__GNUC__) && !defined(__EXCEPTIONS)) || \ - FMT_MSC_VER && !_HAS_EXCEPTIONS -# define FMT_EXCEPTIONS 0 -# else -# define FMT_EXCEPTIONS 1 -# endif -#endif - -// Define FMT_USE_NOEXCEPT to make fmt use noexcept (C++11 feature). -#ifndef FMT_USE_NOEXCEPT -# define FMT_USE_NOEXCEPT 0 -#endif - -#if FMT_USE_NOEXCEPT || FMT_HAS_FEATURE(cxx_noexcept) || \ - (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11) || FMT_MSC_VER >= 1900 -# define FMT_DETECTED_NOEXCEPT noexcept -# define FMT_HAS_CXX11_NOEXCEPT 1 -#else -# define FMT_DETECTED_NOEXCEPT throw() -# define FMT_HAS_CXX11_NOEXCEPT 0 -#endif - -#ifndef FMT_NOEXCEPT -# if FMT_EXCEPTIONS || FMT_HAS_CXX11_NOEXCEPT -# define FMT_NOEXCEPT FMT_DETECTED_NOEXCEPT -# else -# define FMT_NOEXCEPT -# endif -#endif - -// [[noreturn]] is disabled on MSVC because of bogus unreachable code warnings. -#if FMT_EXCEPTIONS && FMT_HAS_CPP_ATTRIBUTE(noreturn) && !FMT_MSC_VER -# define FMT_NORETURN [[noreturn]] -#else -# define FMT_NORETURN -#endif - -#ifndef FMT_DEPRECATED -# if (FMT_HAS_CPP_ATTRIBUTE(deprecated) && __cplusplus >= 201402L) || \ - FMT_MSC_VER >= 1900 -# define FMT_DEPRECATED [[deprecated]] -# else -# if defined(__GNUC__) || defined(__clang__) -# define FMT_DEPRECATED __attribute__((deprecated)) -# elif FMT_MSC_VER -# define FMT_DEPRECATED __declspec(deprecated) -# else -# define FMT_DEPRECATED /* deprecated */ -# endif -# endif -#endif - -#ifndef FMT_BEGIN_NAMESPACE -# if FMT_HAS_FEATURE(cxx_inline_namespaces) || FMT_GCC_VERSION >= 404 || \ - FMT_MSC_VER >= 1900 -# define FMT_INLINE_NAMESPACE inline namespace -# define FMT_END_NAMESPACE \ - } \ - } -# else -# define FMT_INLINE_NAMESPACE namespace -# define FMT_END_NAMESPACE \ - } \ - using namespace v6; \ - } -# endif -# define FMT_BEGIN_NAMESPACE \ - namespace fmt { \ - FMT_INLINE_NAMESPACE v6 { -#endif - -#if !defined(FMT_HEADER_ONLY) && defined(_WIN32) -# ifdef FMT_EXPORT -# define FMT_API __declspec(dllexport) -# elif defined(FMT_SHARED) -# define FMT_API __declspec(dllimport) -# define FMT_EXTERN_TEMPLATE_API FMT_API -# endif -#endif -#ifndef FMT_API -# define FMT_API -#endif -#ifndef FMT_EXTERN_TEMPLATE_API -# define FMT_EXTERN_TEMPLATE_API -#endif - -#ifndef FMT_HEADER_ONLY -# define FMT_EXTERN extern -#else -# define FMT_EXTERN -#endif - -#ifndef FMT_ASSERT -# define FMT_ASSERT(condition, message) assert((condition) && message) -#endif - -// libc++ supports string_view in pre-c++17. -#if (FMT_HAS_INCLUDE() && \ - (__cplusplus > 201402L || defined(_LIBCPP_VERSION))) || \ - (defined(_MSVC_LANG) && _MSVC_LANG > 201402L && _MSC_VER >= 1910) -# include -# define FMT_USE_STRING_VIEW -#elif FMT_HAS_INCLUDE("experimental/string_view") && __cplusplus >= 201402L -# include -# define FMT_USE_EXPERIMENTAL_STRING_VIEW -#endif - -FMT_BEGIN_NAMESPACE - -// Implementations of enable_if_t and other types for pre-C++14 systems. -template -using enable_if_t = typename std::enable_if::type; -template -using conditional_t = typename std::conditional::type; -template using bool_constant = std::integral_constant; -template -using remove_reference_t = typename std::remove_reference::type; -template -using remove_const_t = typename std::remove_const::type; - -struct monostate {}; - -// An enable_if helper to be used in template parameters which results in much -// shorter symbols: https://godbolt.org/z/sWw4vP. Extra parentheses are needed -// to workaround a bug in MSVC 2019 (see #1140 and #1186). -#define FMT_ENABLE_IF(...) enable_if_t<(__VA_ARGS__), int> = 0 - -namespace internal { - -// A workaround for gcc 4.8 to make void_t work in a SFINAE context. -template struct void_t_impl { using type = void; }; - -#if defined(FMT_USE_STRING_VIEW) -template using std_string_view = std::basic_string_view; -#elif defined(FMT_USE_EXPERIMENTAL_STRING_VIEW) -template -using std_string_view = std::experimental::basic_string_view; -#else -template struct std_string_view {}; -#endif - -// Casts nonnegative integer to unsigned. -template -FMT_CONSTEXPR typename std::make_unsigned::type to_unsigned(Int value) { - FMT_ASSERT(value >= 0, "negative value"); - return static_cast::type>(value); -} -} // namespace internal - -template -using void_t = typename internal::void_t_impl::type; - -/** - An implementation of ``std::basic_string_view`` for pre-C++17. It provides a - subset of the API. ``fmt::basic_string_view`` is used for format strings even - if ``std::string_view`` is available to prevent issues when a library is - compiled with a different ``-std`` option than the client code (which is not - recommended). - */ -template class basic_string_view { - private: - const Char* data_; - size_t size_; - - public: - using char_type = Char; - using iterator = const Char*; - - FMT_CONSTEXPR basic_string_view() FMT_NOEXCEPT : data_(nullptr), size_(0) {} - - /** Constructs a string reference object from a C string and a size. */ - FMT_CONSTEXPR basic_string_view(const Char* s, size_t count) FMT_NOEXCEPT - : data_(s), - size_(count) {} - - /** - \rst - Constructs a string reference object from a C string computing - the size with ``std::char_traits::length``. - \endrst - */ - basic_string_view(const Char* s) - : data_(s), size_(std::char_traits::length(s)) {} - - /** Constructs a string reference from a ``std::basic_string`` object. */ - template - FMT_CONSTEXPR basic_string_view(const std::basic_string& s) - FMT_NOEXCEPT : data_(s.data()), - size_(s.size()) {} - - template < - typename S, - FMT_ENABLE_IF(std::is_same>::value)> - FMT_CONSTEXPR basic_string_view(S s) FMT_NOEXCEPT : data_(s.data()), - size_(s.size()) {} - - /** Returns a pointer to the string data. */ - FMT_CONSTEXPR const Char* data() const { return data_; } - - /** Returns the string size. */ - FMT_CONSTEXPR size_t size() const { return size_; } - - FMT_CONSTEXPR iterator begin() const { return data_; } - FMT_CONSTEXPR iterator end() const { return data_ + size_; } - - FMT_CONSTEXPR void remove_prefix(size_t n) { - data_ += n; - size_ -= n; - } - - // Lexicographically compare this string reference to other. - int compare(basic_string_view other) const { - size_t str_size = size_ < other.size_ ? size_ : other.size_; - int result = std::char_traits::compare(data_, other.data_, str_size); - if (result == 0) - result = size_ == other.size_ ? 0 : (size_ < other.size_ ? -1 : 1); - return result; - } - - friend bool operator==(basic_string_view lhs, basic_string_view rhs) { - return lhs.compare(rhs) == 0; - } - friend bool operator!=(basic_string_view lhs, basic_string_view rhs) { - return lhs.compare(rhs) != 0; - } - friend bool operator<(basic_string_view lhs, basic_string_view rhs) { - return lhs.compare(rhs) < 0; - } - friend bool operator<=(basic_string_view lhs, basic_string_view rhs) { - return lhs.compare(rhs) <= 0; - } - friend bool operator>(basic_string_view lhs, basic_string_view rhs) { - return lhs.compare(rhs) > 0; - } - friend bool operator>=(basic_string_view lhs, basic_string_view rhs) { - return lhs.compare(rhs) >= 0; - } -}; - -using string_view = basic_string_view; -using wstring_view = basic_string_view; - -#ifndef __cpp_char8_t -// A UTF-8 code unit type. -enum char8_t : unsigned char {}; -#endif - -/** Specifies if ``T`` is a character type. Can be specialized by users. */ -template struct is_char : std::false_type {}; -template <> struct is_char : std::true_type {}; -template <> struct is_char : std::true_type {}; -template <> struct is_char : std::true_type {}; -template <> struct is_char : std::true_type {}; -template <> struct is_char : std::true_type {}; - -/** - \rst - Returns a string view of `s`. In order to add custom string type support to - {fmt} provide an overload of `to_string_view` for it in the same namespace as - the type for the argument-dependent lookup to work. - - **Example**:: - - namespace my_ns { - inline string_view to_string_view(const my_string& s) { - return {s.data(), s.length()}; - } - } - std::string message = fmt::format(my_string("The answer is {}"), 42); - \endrst - */ -template ::value)> -inline basic_string_view to_string_view(const Char* s) { - return s; -} - -template -inline basic_string_view to_string_view( - const std::basic_string& s) { - return {s.data(), s.size()}; -} - -template -inline basic_string_view to_string_view(basic_string_view s) { - return s; -} - -template >::value)> -inline basic_string_view to_string_view( - internal::std_string_view s) { - return s; -} - -// A base class for compile-time strings. It is defined in the fmt namespace to -// make formatting functions visible via ADL, e.g. format(fmt("{}"), 42). -struct compile_string {}; - -template -struct is_compile_string : std::is_base_of {}; - -template ::value)> -constexpr basic_string_view to_string_view(const S& s) { - return s; -} - -namespace internal { -void to_string_view(...); -using fmt::v6::to_string_view; - -// Specifies whether S is a string type convertible to fmt::basic_string_view. -// It should be a constexpr function but MSVC 2017 fails to compile it in -// enable_if and MSVC 2015 fails to compile it as an alias template. -template -struct is_string : std::is_class()))> { -}; - -template struct char_t_impl {}; -template struct char_t_impl::value>> { - using result = decltype(to_string_view(std::declval())); - using type = typename result::char_type; -}; - -struct error_handler { - FMT_CONSTEXPR error_handler() {} - FMT_CONSTEXPR error_handler(const error_handler&) {} - - // This function is intentionally not constexpr to give a compile-time error. - FMT_NORETURN FMT_API void on_error(const char* message); -}; -} // namespace internal - -/** String's character type. */ -template using char_t = typename internal::char_t_impl::type; - -// Parsing context consisting of a format string range being parsed and an -// argument counter for automatic indexing. -template -class basic_parse_context : private ErrorHandler { - private: - basic_string_view format_str_; - int next_arg_id_; - - public: - using char_type = Char; - using iterator = typename basic_string_view::iterator; - - explicit FMT_CONSTEXPR basic_parse_context(basic_string_view format_str, - ErrorHandler eh = ErrorHandler()) - : ErrorHandler(eh), format_str_(format_str), next_arg_id_(0) {} - - // Returns an iterator to the beginning of the format string range being - // parsed. - FMT_CONSTEXPR iterator begin() const FMT_NOEXCEPT { - return format_str_.begin(); - } - - // Returns an iterator past the end of the format string range being parsed. - FMT_CONSTEXPR iterator end() const FMT_NOEXCEPT { return format_str_.end(); } - - // Advances the begin iterator to ``it``. - FMT_CONSTEXPR void advance_to(iterator it) { - format_str_.remove_prefix(internal::to_unsigned(it - begin())); - } - - // Returns the next argument index. - FMT_CONSTEXPR int next_arg_id() { - if (next_arg_id_ >= 0) return next_arg_id_++; - on_error("cannot switch from manual to automatic argument indexing"); - return 0; - } - - FMT_CONSTEXPR bool check_arg_id(int) { - if (next_arg_id_ > 0) { - on_error("cannot switch from automatic to manual argument indexing"); - return false; - } - next_arg_id_ = -1; - return true; - } - - FMT_CONSTEXPR void check_arg_id(basic_string_view) {} - - FMT_CONSTEXPR void on_error(const char* message) { - ErrorHandler::on_error(message); - } - - FMT_CONSTEXPR ErrorHandler error_handler() const { return *this; } -}; - -using format_parse_context = basic_parse_context; -using wformat_parse_context = basic_parse_context; - -using parse_context FMT_DEPRECATED = basic_parse_context; -using wparse_context FMT_DEPRECATED = basic_parse_context; - -template class basic_format_arg; -template class basic_format_args; - -// A formatter for objects of type T. -template -struct formatter { - // A deleted default constructor indicates a disabled formatter. - formatter() = delete; -}; - -template -struct FMT_DEPRECATED convert_to_int - : bool_constant::value && - std::is_convertible::value> {}; - -namespace internal { - -// Specifies if T has an enabled formatter specialization. A type can be -// formattable even if it doesn't have a formatter e.g. via a conversion. -template -using has_formatter = - std::is_constructible>; - -/** A contiguous memory buffer with an optional growing ability. */ -template class buffer { - private: - buffer(const buffer&) = delete; - void operator=(const buffer&) = delete; - - T* ptr_; - std::size_t size_; - std::size_t capacity_; - - protected: - // Don't initialize ptr_ since it is not accessed to save a few cycles. - buffer(std::size_t sz) FMT_NOEXCEPT : size_(sz), capacity_(sz) {} - - buffer(T* p = nullptr, std::size_t sz = 0, std::size_t cap = 0) FMT_NOEXCEPT - : ptr_(p), - size_(sz), - capacity_(cap) {} - - /** Sets the buffer data and capacity. */ - void set(T* buf_data, std::size_t buf_capacity) FMT_NOEXCEPT { - ptr_ = buf_data; - capacity_ = buf_capacity; - } - - /** Increases the buffer capacity to hold at least *capacity* elements. */ - virtual void grow(std::size_t capacity) = 0; - - public: - using value_type = T; - using const_reference = const T&; - - virtual ~buffer() {} - - T* begin() FMT_NOEXCEPT { return ptr_; } - T* end() FMT_NOEXCEPT { return ptr_ + size_; } - - /** Returns the size of this buffer. */ - std::size_t size() const FMT_NOEXCEPT { return size_; } - - /** Returns the capacity of this buffer. */ - std::size_t capacity() const FMT_NOEXCEPT { return capacity_; } - - /** Returns a pointer to the buffer data. */ - T* data() FMT_NOEXCEPT { return ptr_; } - - /** Returns a pointer to the buffer data. */ - const T* data() const FMT_NOEXCEPT { return ptr_; } - - /** - Resizes the buffer. If T is a POD type new elements may not be initialized. - */ - void resize(std::size_t new_size) { - reserve(new_size); - size_ = new_size; - } - - /** Clears this buffer. */ - void clear() { size_ = 0; } - - /** Reserves space to store at least *capacity* elements. */ - void reserve(std::size_t new_capacity) { - if (new_capacity > capacity_) grow(new_capacity); - } - - void push_back(const T& value) { - reserve(size_ + 1); - ptr_[size_++] = value; - } - - /** Appends data to the end of the buffer. */ - template void append(const U* begin, const U* end); - - T& operator[](std::size_t index) { return ptr_[index]; } - const T& operator[](std::size_t index) const { return ptr_[index]; } -}; - -// A container-backed buffer. -template -class container_buffer : public buffer { - private: - Container& container_; - - protected: - void grow(std::size_t capacity) FMT_OVERRIDE { - container_.resize(capacity); - this->set(&container_[0], capacity); - } - - public: - explicit container_buffer(Container& c) - : buffer(c.size()), container_(c) {} -}; - -// Extracts a reference to the container from back_insert_iterator. -template -inline Container& get_container(std::back_insert_iterator it) { - using bi_iterator = std::back_insert_iterator; - struct accessor : bi_iterator { - accessor(bi_iterator iter) : bi_iterator(iter) {} - using bi_iterator::container; - }; - return *accessor(it).container; -} - -template -struct fallback_formatter { - fallback_formatter() = delete; -}; - -// Specifies if T has an enabled fallback_formatter specialization. -template -using has_fallback_formatter = - std::is_constructible>; - -template struct named_arg_base; -template struct named_arg; - -enum type { - none_type, - named_arg_type, - // Integer types should go first, - int_type, - uint_type, - long_long_type, - ulong_long_type, - bool_type, - char_type, - last_integer_type = char_type, - // followed by floating-point types. - double_type, - long_double_type, - last_numeric_type = long_double_type, - cstring_type, - string_type, - pointer_type, - custom_type -}; - -// Maps core type T to the corresponding type enum constant. -template -struct type_constant : std::integral_constant {}; - -#define FMT_TYPE_CONSTANT(Type, constant) \ - template \ - struct type_constant : std::integral_constant {} - -FMT_TYPE_CONSTANT(const named_arg_base&, named_arg_type); -FMT_TYPE_CONSTANT(int, int_type); -FMT_TYPE_CONSTANT(unsigned, uint_type); -FMT_TYPE_CONSTANT(long long, long_long_type); -FMT_TYPE_CONSTANT(unsigned long long, ulong_long_type); -FMT_TYPE_CONSTANT(bool, bool_type); -FMT_TYPE_CONSTANT(Char, char_type); -FMT_TYPE_CONSTANT(double, double_type); -FMT_TYPE_CONSTANT(long double, long_double_type); -FMT_TYPE_CONSTANT(const Char*, cstring_type); -FMT_TYPE_CONSTANT(basic_string_view, string_type); -FMT_TYPE_CONSTANT(const void*, pointer_type); - -FMT_CONSTEXPR bool is_integral(type t) { - FMT_ASSERT(t != named_arg_type, "invalid argument type"); - return t > none_type && t <= last_integer_type; -} - -FMT_CONSTEXPR bool is_arithmetic(type t) { - FMT_ASSERT(t != named_arg_type, "invalid argument type"); - return t > none_type && t <= last_numeric_type; -} - -template struct string_value { - const Char* data; - std::size_t size; -}; - -template struct custom_value { - using parse_context = basic_parse_context; - const void* value; - void (*format)(const void* arg, parse_context& parse_ctx, Context& ctx); -}; - -// A formatting argument value. -template class value { - public: - using char_type = typename Context::char_type; - - union { - int int_value; - unsigned uint_value; - long long long_long_value; - unsigned long long ulong_long_value; - bool bool_value; - char_type char_value; - double double_value; - long double long_double_value; - const void* pointer; - string_value string; - custom_value custom; - const named_arg_base* named_arg; - }; - - FMT_CONSTEXPR value(int val = 0) : int_value(val) {} - FMT_CONSTEXPR value(unsigned val) : uint_value(val) {} - value(long long val) : long_long_value(val) {} - value(unsigned long long val) : ulong_long_value(val) {} - value(double val) : double_value(val) {} - value(long double val) : long_double_value(val) {} - value(bool val) : bool_value(val) {} - value(char_type val) : char_value(val) {} - value(const char_type* val) { string.data = val; } - value(basic_string_view val) { - string.data = val.data(); - string.size = val.size(); - } - value(const void* val) : pointer(val) {} - - template value(const T& val) { - custom.value = &val; - // Get the formatter type through the context to allow different contexts - // have different extension points, e.g. `formatter` for `format` and - // `printf_formatter` for `printf`. - custom.format = format_custom_arg< - T, conditional_t::value, - typename Context::template formatter_type, - fallback_formatter>>; - } - - value(const named_arg_base& val) { named_arg = &val; } - - private: - // Formats an argument of a custom type, such as a user-defined class. - template - static void format_custom_arg(const void* arg, - basic_parse_context& parse_ctx, - Context& ctx) { - Formatter f; - parse_ctx.advance_to(f.parse(parse_ctx)); - ctx.advance_to(f.format(*static_cast(arg), ctx)); - } -}; - -template -FMT_CONSTEXPR basic_format_arg make_arg(const T& value); - -// To minimize the number of types we need to deal with, long is translated -// either to int or to long long depending on its size. -enum { long_short = sizeof(long) == sizeof(int) }; -using long_type = conditional_t; -using ulong_type = conditional_t; - -// Maps formatting arguments to core types. -template struct arg_mapper { - using char_type = typename Context::char_type; - - FMT_CONSTEXPR int map(signed char val) { return val; } - FMT_CONSTEXPR unsigned map(unsigned char val) { return val; } - FMT_CONSTEXPR int map(short val) { return val; } - FMT_CONSTEXPR unsigned map(unsigned short val) { return val; } - FMT_CONSTEXPR int map(int val) { return val; } - FMT_CONSTEXPR unsigned map(unsigned val) { return val; } - FMT_CONSTEXPR long_type map(long val) { return val; } - FMT_CONSTEXPR ulong_type map(unsigned long val) { return val; } - FMT_CONSTEXPR long long map(long long val) { return val; } - FMT_CONSTEXPR unsigned long long map(unsigned long long val) { return val; } - FMT_CONSTEXPR bool map(bool val) { return val; } - - template ::value)> - FMT_CONSTEXPR char_type map(T val) { - static_assert( - std::is_same::value || std::is_same::value, - "mixing character types is disallowed"); - return val; - } - - FMT_CONSTEXPR double map(float val) { return static_cast(val); } - FMT_CONSTEXPR double map(double val) { return val; } - FMT_CONSTEXPR long double map(long double val) { return val; } - - FMT_CONSTEXPR const char_type* map(char_type* val) { return val; } - FMT_CONSTEXPR const char_type* map(const char_type* val) { return val; } - template ::value)> - FMT_CONSTEXPR basic_string_view map(const T& val) { - static_assert(std::is_same>::value, - "mixing character types is disallowed"); - return to_string_view(val); - } - template , T>::value && - !is_string::value)> - FMT_CONSTEXPR basic_string_view map(const T& val) { - return basic_string_view(val); - } - FMT_CONSTEXPR const char* map(const signed char* val) { - static_assert(std::is_same::value, "invalid string type"); - return reinterpret_cast(val); - } - FMT_CONSTEXPR const char* map(const unsigned char* val) { - static_assert(std::is_same::value, "invalid string type"); - return reinterpret_cast(val); - } - - FMT_CONSTEXPR const void* map(void* val) { return val; } - FMT_CONSTEXPR const void* map(const void* val) { return val; } - FMT_CONSTEXPR const void* map(std::nullptr_t val) { return val; } - template FMT_CONSTEXPR int map(const T*) { - // Formatting of arbitrary pointers is disallowed. If you want to output - // a pointer cast it to "void *" or "const void *". In particular, this - // forbids formatting of "[const] volatile char *" which is printed as bool - // by iostreams. - static_assert(!sizeof(T), "formatting of non-void pointers is disallowed"); - return 0; - } - - template ::value && - !has_formatter::value && - !has_fallback_formatter::value)> - FMT_CONSTEXPR int map(const T& val) { - return static_cast(val); - } - template ::value && !is_char::value && - (has_formatter::value || - has_fallback_formatter::value))> - FMT_CONSTEXPR const T& map(const T& val) { - return val; - } - - template - FMT_CONSTEXPR const named_arg_base& map( - const named_arg& val) { - auto arg = make_arg(val.value); - std::memcpy(val.data, &arg, sizeof(arg)); - return val; - } -}; - -// A type constant after applying arg_mapper. -template -using mapped_type_constant = - type_constant().map(std::declval())), - typename Context::char_type>; - -// Maximum number of arguments with packed types. -enum { max_packed_args = 15 }; -enum : unsigned long long { is_unpacked_bit = 1ull << 63 }; - -template class arg_map; -} // namespace internal - -// A formatting argument. It is a trivially copyable/constructible type to -// allow storage in basic_memory_buffer. -template class basic_format_arg { - private: - internal::value value_; - internal::type type_; - - template - friend FMT_CONSTEXPR basic_format_arg internal::make_arg( - const T& value); - - template - friend FMT_CONSTEXPR auto visit_format_arg(Visitor&& vis, - const basic_format_arg& arg) - -> decltype(vis(0)); - - friend class basic_format_args; - friend class internal::arg_map; - - using char_type = typename Context::char_type; - - public: - class handle { - public: - explicit handle(internal::custom_value custom) : custom_(custom) {} - - void format(basic_parse_context& parse_ctx, Context& ctx) const { - custom_.format(custom_.value, parse_ctx, ctx); - } - - private: - internal::custom_value custom_; - }; - - FMT_CONSTEXPR basic_format_arg() : type_(internal::none_type) {} - - FMT_CONSTEXPR explicit operator bool() const FMT_NOEXCEPT { - return type_ != internal::none_type; - } - - internal::type type() const { return type_; } - - bool is_integral() const { return internal::is_integral(type_); } - bool is_arithmetic() const { return internal::is_arithmetic(type_); } -}; - -/** - \rst - Visits an argument dispatching to the appropriate visit method based on - the argument type. For example, if the argument type is ``double`` then - ``vis(value)`` will be called with the value of type ``double``. - \endrst - */ -template -FMT_CONSTEXPR auto visit_format_arg(Visitor&& vis, - const basic_format_arg& arg) - -> decltype(vis(0)) { - using char_type = typename Context::char_type; - switch (arg.type_) { - case internal::none_type: - break; - case internal::named_arg_type: - FMT_ASSERT(false, "invalid argument type"); - break; - case internal::int_type: - return vis(arg.value_.int_value); - case internal::uint_type: - return vis(arg.value_.uint_value); - case internal::long_long_type: - return vis(arg.value_.long_long_value); - case internal::ulong_long_type: - return vis(arg.value_.ulong_long_value); - case internal::bool_type: - return vis(arg.value_.bool_value); - case internal::char_type: - return vis(arg.value_.char_value); - case internal::double_type: - return vis(arg.value_.double_value); - case internal::long_double_type: - return vis(arg.value_.long_double_value); - case internal::cstring_type: - return vis(arg.value_.string.data); - case internal::string_type: - return vis(basic_string_view(arg.value_.string.data, - arg.value_.string.size)); - case internal::pointer_type: - return vis(arg.value_.pointer); - case internal::custom_type: - return vis(typename basic_format_arg::handle(arg.value_.custom)); - } - return vis(monostate()); -} - -namespace internal { -// A map from argument names to their values for named arguments. -template class arg_map { - private: - arg_map(const arg_map&) = delete; - void operator=(const arg_map&) = delete; - - using char_type = typename Context::char_type; - - struct entry { - basic_string_view name; - basic_format_arg arg; - }; - - entry* map_; - unsigned size_; - - void push_back(value val) { - const auto& named = *val.named_arg; - map_[size_] = {named.name, named.template deserialize()}; - ++size_; - } - - public: - arg_map() : map_(nullptr), size_(0) {} - void init(const basic_format_args& args); - ~arg_map() { delete[] map_; } - - basic_format_arg find(basic_string_view name) const { - // The list is unsorted, so just return the first matching name. - for (entry *it = map_, *end = map_ + size_; it != end; ++it) { - if (it->name == name) return it->arg; - } - return {}; - } -}; - -// A type-erased reference to an std::locale to avoid heavy include. -class locale_ref { - private: - const void* locale_; // A type-erased pointer to std::locale. - - public: - locale_ref() : locale_(nullptr) {} - template explicit locale_ref(const Locale& loc); - - template Locale get() const; -}; - -template constexpr unsigned long long encode_types() { return 0; } - -template -constexpr unsigned long long encode_types() { - return mapped_type_constant::value | - (encode_types() << 4); -} - -template -FMT_CONSTEXPR basic_format_arg make_arg(const T& value) { - basic_format_arg arg; - arg.type_ = mapped_type_constant::value; - arg.value_ = arg_mapper().map(value); - return arg; -} - -template -inline value make_arg(const T& val) { - return arg_mapper().map(val); -} - -template -inline basic_format_arg make_arg(const T& value) { - return make_arg(value); -} -} // namespace internal - -// Formatting context. -template class basic_format_context { - public: - /** The character type for the output. */ - using char_type = Char; - - private: - OutputIt out_; - basic_format_args args_; - internal::arg_map map_; - internal::locale_ref loc_; - - basic_format_context(const basic_format_context&) = delete; - void operator=(const basic_format_context&) = delete; - - public: - using iterator = OutputIt; - using format_arg = basic_format_arg; - template using formatter_type = formatter; - - /** - Constructs a ``basic_format_context`` object. References to the arguments are - stored in the object so make sure they have appropriate lifetimes. - */ - basic_format_context(OutputIt out, - basic_format_args ctx_args, - internal::locale_ref loc = internal::locale_ref()) - : out_(out), args_(ctx_args), loc_(loc) {} - - format_arg arg(int id) const { return args_.get(id); } - - // Checks if manual indexing is used and returns the argument with the - // specified name. - format_arg arg(basic_string_view name); - - internal::error_handler error_handler() { return {}; } - void on_error(const char* message) { error_handler().on_error(message); } - - // Returns an iterator to the beginning of the output range. - iterator out() { return out_; } - - // Advances the begin iterator to ``it``. - void advance_to(iterator it) { out_ = it; } - - internal::locale_ref locale() { return loc_; } -}; - -template -using buffer_context = - basic_format_context>, - Char>; -using format_context = buffer_context; -using wformat_context = buffer_context; - -/** - \rst - An array of references to arguments. It can be implicitly converted into - `~fmt::basic_format_args` for passing into type-erased formatting functions - such as `~fmt::vformat`. - \endrst - */ -template class format_arg_store { - private: - static const size_t num_args = sizeof...(Args); - static const bool is_packed = num_args < internal::max_packed_args; - - using value_type = conditional_t, - basic_format_arg>; - - // If the arguments are not packed, add one more element to mark the end. - value_type data_[num_args + (num_args == 0 ? 1 : 0)]; - - friend class basic_format_args; - - public: - static constexpr unsigned long long types = - is_packed ? internal::encode_types() - : internal::is_unpacked_bit | num_args; - FMT_DEPRECATED static constexpr unsigned long long TYPES = types; - - format_arg_store(const Args&... args) - : data_{internal::make_arg(args)...} {} -}; - -/** - \rst - Constructs an `~fmt::format_arg_store` object that contains references to - arguments and can be implicitly converted to `~fmt::format_args`. `Context` - can be omitted in which case it defaults to `~fmt::context`. - See `~fmt::arg` for lifetime considerations. - \endrst - */ -template -inline format_arg_store make_format_args( - const Args&... args) { - return {args...}; -} - -/** Formatting arguments. */ -template class basic_format_args { - public: - using size_type = int; - using format_arg = basic_format_arg; - - private: - // To reduce compiled code size per formatting function call, types of first - // max_packed_args arguments are passed in the types_ field. - unsigned long long types_; - union { - // If the number of arguments is less than max_packed_args, the argument - // values are stored in values_, otherwise they are stored in args_. - // This is done to reduce compiled code size as storing larger objects - // may require more code (at least on x86-64) even if the same amount of - // data is actually copied to stack. It saves ~10% on the bloat test. - const internal::value* values_; - const format_arg* args_; - }; - - bool is_packed() const { return (types_ & internal::is_unpacked_bit) == 0; } - - internal::type type(int index) const { - int shift = index * 4; - return static_cast((types_ & (0xfull << shift)) >> shift); - } - - friend class internal::arg_map; - - void set_data(const internal::value* values) { values_ = values; } - void set_data(const format_arg* args) { args_ = args; } - - format_arg do_get(int index) const { - format_arg arg; - if (!is_packed()) { - auto num_args = max_size(); - if (index < num_args) arg = args_[index]; - return arg; - } - if (index > internal::max_packed_args) return arg; - arg.type_ = type(index); - if (arg.type_ == internal::none_type) return arg; - internal::value& val = arg.value_; - val = values_[index]; - return arg; - } - - public: - basic_format_args() : types_(0) {} - - /** - \rst - Constructs a `basic_format_args` object from `~fmt::format_arg_store`. - \endrst - */ - template - basic_format_args(const format_arg_store& store) - : types_(static_cast(store.types)) { - set_data(store.data_); - } - - /** - \rst - Constructs a `basic_format_args` object from a dynamic set of arguments. - \endrst - */ - basic_format_args(const format_arg* args, int count) - : types_(internal::is_unpacked_bit | internal::to_unsigned(count)) { - set_data(args); - } - - /** Returns the argument at specified index. */ - format_arg get(int index) const { - format_arg arg = do_get(index); - if (arg.type_ == internal::named_arg_type) - arg = arg.value_.named_arg->template deserialize(); - return arg; - } - - int max_size() const { - unsigned long long max_packed = internal::max_packed_args; - return static_cast(is_packed() ? max_packed - : types_ & ~internal::is_unpacked_bit); - } -}; - -/** An alias to ``basic_format_args``. */ -// It is a separate type rather than an alias to make symbols readable. -struct format_args : basic_format_args { - template - format_args(Args&&... args) - : basic_format_args(std::forward(args)...) {} -}; -struct wformat_args : basic_format_args { - template - wformat_args(Args&&... args) - : basic_format_args(std::forward(args)...) {} -}; - -template struct is_contiguous : std::false_type {}; - -template -struct is_contiguous> : std::true_type {}; - -template -struct is_contiguous> : std::true_type {}; - -namespace internal { - -template -struct is_contiguous_back_insert_iterator : std::false_type {}; -template -struct is_contiguous_back_insert_iterator> - : is_contiguous {}; - -template struct named_arg_base { - basic_string_view name; - - // Serialized value. - mutable char data[sizeof(basic_format_arg>)]; - - named_arg_base(basic_string_view nm) : name(nm) {} - - template basic_format_arg deserialize() const { - basic_format_arg arg; - std::memcpy(&arg, data, sizeof(basic_format_arg)); - return arg; - } -}; - -template struct named_arg : named_arg_base { - const T& value; - - named_arg(basic_string_view name, const T& val) - : named_arg_base(name), value(val) {} -}; - -template ::value)> -inline void check_format_string(const S&) { -#if defined(FMT_ENFORCE_COMPILE_STRING) - static_assert(is_compile_string::value, - "FMT_ENFORCE_COMPILE_STRING requires all format strings to " - "utilize FMT_STRING() or fmt()."); -#endif -} -template ::value)> -void check_format_string(S); - -struct view {}; -template struct bool_pack; -template -using all_true = - std::is_same, bool_pack>; - -template > -inline format_arg_store, remove_reference_t...> -make_args_checked(const S& format_str, - const remove_reference_t&... args) { - static_assert(all_true<(!std::is_base_of>() || - !std::is_reference())...>::value, - "passing views as lvalues is disallowed"); - check_format_string>...>(format_str); - return {args...}; -} - -template -std::basic_string vformat(basic_string_view format_str, - basic_format_args> args); - -template -typename buffer_context::iterator vformat_to( - buffer& buf, basic_string_view format_str, - basic_format_args> args); -} // namespace internal - -/** - \rst - Returns a named argument to be used in a formatting function. - - The named argument holds a reference and does not extend the lifetime - of its arguments. - Consequently, a dangling reference can accidentally be created. - The user should take care to only pass this function temporaries when - the named argument is itself a temporary, as per the following example. - - **Example**:: - - fmt::print("Elapsed time: {s:.2f} seconds", fmt::arg("s", 1.23)); - \endrst - */ -template > -inline internal::named_arg arg(const S& name, const T& arg) { - static_assert(internal::is_string::value, ""); - return {name, arg}; -} - -// Disable nested named arguments, e.g. ``arg("a", arg("b", 42))``. -template -void arg(S, internal::named_arg) = delete; - -/** Formats a string and writes the output to ``out``. */ -// GCC 8 and earlier cannot handle std::back_insert_iterator with -// vformat_to(...) overload, so SFINAE on iterator type instead. -template , - FMT_ENABLE_IF( - internal::is_contiguous_back_insert_iterator::value)> -OutputIt vformat_to(OutputIt out, const S& format_str, - basic_format_args> args) { - using container = remove_reference_t; - internal::container_buffer buf((internal::get_container(out))); - internal::vformat_to(buf, to_string_view(format_str), args); - return out; -} - -template ::value&& internal::is_string::value)> -inline std::back_insert_iterator format_to( - std::back_insert_iterator out, const S& format_str, - Args&&... args) { - return vformat_to( - out, to_string_view(format_str), - {internal::make_args_checked(format_str, args...)}); -} - -template > -inline std::basic_string vformat( - const S& format_str, basic_format_args> args) { - return internal::vformat(to_string_view(format_str), args); -} - -/** - \rst - Formats arguments and returns the result as a string. - - **Example**:: - - #include - std::string message = fmt::format("The answer is {}", 42); - \endrst -*/ -// Pass char_t as a default template parameter instead of using -// std::basic_string> to reduce the symbol size. -template > -inline std::basic_string format(const S& format_str, Args&&... args) { - return internal::vformat( - to_string_view(format_str), - {internal::make_args_checked(format_str, args...)}); -} - -FMT_API void vprint(std::FILE* f, string_view format_str, format_args args); -FMT_API void vprint(std::FILE* f, wstring_view format_str, wformat_args args); - -/** - \rst - Prints formatted data to the file *f*. For wide format strings, - *f* should be in wide-oriented mode set via ``fwide(f, 1)`` or - ``_setmode(_fileno(f), _O_U8TEXT)`` on Windows. - - **Example**:: - - fmt::print(stderr, "Don't {}!", "panic"); - \endrst - */ -template ::value)> -inline void print(std::FILE* f, const S& format_str, Args&&... args) { - vprint(f, to_string_view(format_str), - internal::make_args_checked(format_str, args...)); -} - -FMT_API void vprint(string_view format_str, format_args args); -FMT_API void vprint(wstring_view format_str, wformat_args args); - -/** - \rst - Prints formatted data to ``stdout``. - - **Example**:: - - fmt::print("Elapsed time: {0:.2f} seconds", 1.23); - \endrst - */ -template ::value)> -inline void print(const S& format_str, Args&&... args) { - vprint(to_string_view(format_str), - internal::make_args_checked(format_str, args...)); -} -FMT_END_NAMESPACE - -#endif // FMT_CORE_H_ +#include "format.h" diff --git a/Source/ThirdParty/spdlog/fmt/bundled/LICENSE.rst b/Source/ThirdParty/spdlog/fmt/bundled/fmt.license.rst similarity index 95% rename from Source/ThirdParty/spdlog/fmt/bundled/LICENSE.rst rename to Source/ThirdParty/spdlog/fmt/bundled/fmt.license.rst index f0ec3db4d..1cd1ef926 100644 --- a/Source/ThirdParty/spdlog/fmt/bundled/LICENSE.rst +++ b/Source/ThirdParty/spdlog/fmt/bundled/fmt.license.rst @@ -1,4 +1,4 @@ -Copyright (c) 2012 - present, Victor Zverovich +Copyright (c) 2012 - present, Victor Zverovich and {fmt} contributors Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the diff --git a/Source/ThirdParty/spdlog/fmt/bundled/format-inl.h b/Source/ThirdParty/spdlog/fmt/bundled/format-inl.h index 3fbb80600..945cb912a 100644 --- a/Source/ThirdParty/spdlog/fmt/bundled/format-inl.h +++ b/Source/ThirdParty/spdlog/fmt/bundled/format-inl.h @@ -1,4 +1,4 @@ -// Formatting library for C++ +// Formatting library for C++ - implementation // // Copyright (c) 2012 - 2016, Victor Zverovich // All rights reserved. @@ -8,993 +8,1941 @@ #ifndef FMT_FORMAT_INL_H_ #define FMT_FORMAT_INL_H_ -#include "format.h" - -#include - -#include -#include -#include -#include -#include -#include // for std::ptrdiff_t -#include // for std::memmove -#include -#if !defined(FMT_STATIC_THOUSANDS_SEPARATOR) -# include +#ifndef FMT_MODULE +# include +# include // errno +# include +# include +# include #endif -#if FMT_USE_WINDOWS_H -# if !defined(FMT_HEADER_ONLY) && !defined(WIN32_LEAN_AND_MEAN) -# define WIN32_LEAN_AND_MEAN -# endif -# if defined(NOMINMAX) || defined(FMT_WIN_MINMAX) -# include -# else -# define NOMINMAX -# include -# undef NOMINMAX -# endif +#if defined(_WIN32) && !defined(FMT_USE_WRITE_CONSOLE) +# include // _isatty #endif -#if FMT_EXCEPTIONS -# define FMT_TRY try -# define FMT_CATCH(x) catch (x) -#else -# define FMT_TRY if (true) -# define FMT_CATCH(x) if (false) -#endif +#include "format.h" -#ifdef _MSC_VER -# pragma warning(push) -# pragma warning(disable : 4127) // conditional expression is constant -# pragma warning(disable : 4702) // unreachable code -// Disable deprecation warning for strerror. The latter is not called but -// MSVC fails to detect it. -# pragma warning(disable : 4996) +#if FMT_USE_LOCALE && !defined(FMT_MODULE) +# include #endif -// Dummy implementations of strerror_r and strerror_s called if corresponding -// system functions are not available. -inline fmt::internal::null<> strerror_r(int, char*, ...) { - return fmt::internal::null<>(); -} -inline fmt::internal::null<> strerror_s(char*, std::size_t, ...) { - return fmt::internal::null<>(); -} +#ifndef FMT_FUNC +# define FMT_FUNC +#endif FMT_BEGIN_NAMESPACE -namespace internal { - -#ifndef _MSC_VER -# define FMT_SNPRINTF snprintf -#else // _MSC_VER -inline int fmt_snprintf(char* buffer, size_t size, const char* format, ...) { - va_list args; - va_start(args, format); - int result = vsnprintf_s(buffer, size, _TRUNCATE, format, args); - va_end(args); - return result; -} -# define FMT_SNPRINTF fmt_snprintf -#endif // _MSC_VER - -using format_func = void (*)(internal::buffer&, int, string_view); - -// Portable thread-safe version of strerror. -// Sets buffer to point to a string describing the error code. -// This can be either a pointer to a string stored in buffer, -// or a pointer to some static immutable string. -// Returns one of the following values: -// 0 - success -// ERANGE - buffer is not large enough to store the error message -// other - failure -// Buffer should be at least of size 1. -FMT_FUNC int safe_strerror(int error_code, char*& buffer, - std::size_t buffer_size) FMT_NOEXCEPT { - FMT_ASSERT(buffer != nullptr && buffer_size != 0, "invalid buffer"); - - class dispatcher { - private: - int error_code_; - char*& buffer_; - std::size_t buffer_size_; - - // A noop assignment operator to avoid bogus warnings. - void operator=(const dispatcher&) {} - - // Handle the result of XSI-compliant version of strerror_r. - int handle(int result) { - // glibc versions before 2.13 return result in errno. - return result == -1 ? errno : result; - } - // Handle the result of GNU-specific version of strerror_r. - int handle(char* message) { - // If the buffer is full then the message is probably truncated. - if (message == buffer_ && strlen(buffer_) == buffer_size_ - 1) - return ERANGE; - buffer_ = message; - return 0; - } - - // Handle the case when strerror_r is not available. - int handle(internal::null<>) { - return fallback(strerror_s(buffer_, buffer_size_, error_code_)); - } - - // Fallback to strerror_s when strerror_r is not available. - int fallback(int result) { - // If the buffer is full then the message is probably truncated. - return result == 0 && strlen(buffer_) == buffer_size_ - 1 ? ERANGE - : result; - } - -#if !FMT_MSC_VER - // Fallback to strerror if strerror_r and strerror_s are not available. - int fallback(internal::null<>) { - errno = 0; - buffer_ = strerror(error_code_); - return errno; - } +#ifndef FMT_CUSTOM_ASSERT_FAIL +FMT_FUNC void assert_fail(const char* file, int line, const char* message) { + // Use unchecked std::fprintf to avoid triggering another assertion when + // writing to stderr fails. + std::fprintf(stderr, "%s:%d: assertion failed: %s", file, line, message); + abort(); +} #endif - public: - dispatcher(int err_code, char*& buf, std::size_t buf_size) - : error_code_(err_code), buffer_(buf), buffer_size_(buf_size) {} - - int run() { return handle(strerror_r(error_code_, buffer_, buffer_size_)); } - }; - return dispatcher(error_code, buffer, buffer_size).run(); +#if FMT_USE_LOCALE +namespace detail { +using std::locale; +using std::numpunct; +using std::use_facet; +} // namespace detail +#else +namespace detail { +struct locale {}; +template struct numpunct { + auto grouping() const -> std::string { return "\03"; } + auto thousands_sep() const -> Char { return ','; } + auto decimal_point() const -> Char { return '.'; } +}; +template Facet use_facet(locale) { return {}; } +} // namespace detail +#endif // FMT_USE_LOCALE + +template auto locale_ref::get() const -> Locale { + using namespace detail; + static_assert(std::is_same::value, ""); +#if FMT_USE_LOCALE + if (locale_) return *static_cast(locale_); +#endif + return locale(); } -FMT_FUNC void format_error_code(internal::buffer& out, int error_code, - string_view message) FMT_NOEXCEPT { +namespace detail { + +FMT_FUNC void format_error_code(detail::buffer& out, int error_code, + string_view message) noexcept { // Report error code making sure that the output fits into // inline_buffer_size to avoid dynamic memory allocation and potential // bad_alloc. - out.resize(0); + out.try_resize(0); static const char SEP[] = ": "; static const char ERROR_STR[] = "error "; // Subtract 2 to account for terminating null characters in SEP and ERROR_STR. - std::size_t error_code_size = sizeof(SEP) + sizeof(ERROR_STR) - 2; - auto abs_value = static_cast>(error_code); - if (internal::is_negative(error_code)) { + size_t error_code_size = sizeof(SEP) + sizeof(ERROR_STR) - 2; + auto abs_value = static_cast>(error_code); + if (detail::is_negative(error_code)) { abs_value = 0 - abs_value; ++error_code_size; } - error_code_size += internal::to_unsigned(internal::count_digits(abs_value)); - internal::writer w(out); - if (message.size() <= inline_buffer_size - error_code_size) { - w.write(message); - w.write(SEP); - } - w.write(ERROR_STR); - w.write(error_code); - assert(out.size() <= inline_buffer_size); -} - -// A wrapper around fwrite that throws on error. -FMT_FUNC void fwrite_fully(const void* ptr, size_t size, size_t count, - FILE* stream) { - size_t written = std::fwrite(ptr, size, count, stream); - if (written < count) { - FMT_THROW(system_error(errno, "cannot write to file")); - } + error_code_size += detail::to_unsigned(detail::count_digits(abs_value)); + auto it = appender(out); + if (message.size() <= inline_buffer_size - error_code_size) + fmt::format_to(it, FMT_STRING("{}{}"), message, SEP); + fmt::format_to(it, FMT_STRING("{}{}"), ERROR_STR, error_code); + FMT_ASSERT(out.size() <= inline_buffer_size, ""); } -FMT_FUNC void report_error(format_func func, int error_code, - string_view message) FMT_NOEXCEPT { +FMT_FUNC void do_report_error(format_func func, int error_code, + const char* message) noexcept { memory_buffer full_message; func(full_message, error_code, message); - // Don't use fwrite_fully because the latter may throw. - (void)std::fwrite(full_message.data(), full_message.size(), 1, stderr); - std::fputc('\n', stderr); + // Don't use fwrite_all because the latter may throw. + if (std::fwrite(full_message.data(), full_message.size(), 1, stderr) > 0) + std::fputc('\n', stderr); } -} // namespace internal - -#if !defined(FMT_STATIC_THOUSANDS_SEPARATOR) -namespace internal { -template -locale_ref::locale_ref(const Locale& loc) : locale_(&loc) { - static_assert(std::is_same::value, ""); +// A wrapper around fwrite that throws on error. +inline void fwrite_all(const void* ptr, size_t count, FILE* stream) { + size_t written = std::fwrite(ptr, 1, count, stream); + if (written < count) + FMT_THROW(system_error(errno, FMT_STRING("cannot write to file"))); } -template Locale locale_ref::get() const { - static_assert(std::is_same::value, ""); - return locale_ ? *static_cast(locale_) : std::locale(); +template +FMT_FUNC auto thousands_sep_impl(locale_ref loc) -> thousands_sep_result { + auto&& facet = use_facet>(loc.get()); + auto grouping = facet.grouping(); + auto thousands_sep = grouping.empty() ? Char() : facet.thousands_sep(); + return {std::move(grouping), thousands_sep}; +} +template +FMT_FUNC auto decimal_point_impl(locale_ref loc) -> Char { + return use_facet>(loc.get()).decimal_point(); } -template FMT_FUNC Char thousands_sep_impl(locale_ref loc) { - return std::use_facet>(loc.get()) - .thousands_sep(); +#if FMT_USE_LOCALE +FMT_FUNC auto write_loc(appender out, loc_value value, + const format_specs& specs, locale_ref loc) -> bool { + auto locale = loc.get(); + // We cannot use the num_put facet because it may produce output in + // a wrong encoding. + using facet = format_facet; + if (std::has_facet(locale)) + return use_facet(locale).put(out, value, specs); + return facet(locale).put(out, value, specs); } -template FMT_FUNC Char decimal_point_impl(locale_ref loc) { - return std::use_facet>(loc.get()) - .decimal_point(); +#endif +} // namespace detail + +FMT_FUNC void report_error(const char* message) { +#if FMT_MSC_VERSION || defined(__NVCC__) + // Silence unreachable code warnings in MSVC and NVCC because these + // are nearly impossible to fix in a generic code. + volatile bool b = true; + if (!b) return; +#endif + FMT_THROW(format_error(message)); } -} // namespace internal -#else -template -FMT_FUNC Char internal::thousands_sep_impl(locale_ref) { - return FMT_STATIC_THOUSANDS_SEPARATOR; + +template typename Locale::id format_facet::id; + +template format_facet::format_facet(Locale& loc) { + auto& np = detail::use_facet>(loc); + grouping_ = np.grouping(); + if (!grouping_.empty()) separator_ = std::string(1, np.thousands_sep()); } -template -FMT_FUNC Char internal::decimal_point_impl(locale_ref) { - return '.'; + +#if FMT_USE_LOCALE +template <> +FMT_API FMT_FUNC auto format_facet::do_put( + appender out, loc_value val, const format_specs& specs) const -> bool { + return val.visit( + detail::loc_writer<>{out, specs, separator_, grouping_, decimal_point_}); } #endif -FMT_API FMT_FUNC format_error::~format_error() FMT_NOEXCEPT {} -FMT_API FMT_FUNC system_error::~system_error() FMT_NOEXCEPT {} +FMT_FUNC auto vsystem_error(int error_code, string_view fmt, format_args args) + -> std::system_error { + auto ec = std::error_code(error_code, std::generic_category()); + return std::system_error(ec, vformat(fmt, args)); +} + +namespace detail { -FMT_FUNC void system_error::init(int err_code, string_view format_str, - format_args args) { - error_code_ = err_code; - memory_buffer buffer; - format_system_error(buffer, err_code, vformat(format_str, args)); - std::runtime_error& base = *this; - base = std::runtime_error(to_string(buffer)); +template +inline auto operator==(basic_fp x, basic_fp y) -> bool { + return x.f == y.f && x.e == y.e; } -namespace internal { +// Compilers should be able to optimize this into the ror instruction. +FMT_INLINE auto rotr(uint32_t n, uint32_t r) noexcept -> uint32_t { + r &= 31; + return (n >> r) | (n << (32 - r)); +} +FMT_INLINE auto rotr(uint64_t n, uint32_t r) noexcept -> uint64_t { + r &= 63; + return (n >> r) | (n << (64 - r)); +} -template <> FMT_FUNC int count_digits<4>(internal::fallback_uintptr n) { - // Assume little endian; pointer formatting is implementation-defined anyway. - int i = static_cast(sizeof(void*)) - 1; - while (i > 0 && n.value[i] == 0) --i; - auto char_digits = std::numeric_limits::digits / 4; - return i >= 0 ? i * char_digits + count_digits<4, unsigned>(n.value[i]) : 1; +// Implementation of Dragonbox algorithm: https://github.com/jk-jeon/dragonbox. +namespace dragonbox { +// Computes upper 64 bits of multiplication of a 32-bit unsigned integer and a +// 64-bit unsigned integer. +inline auto umul96_upper64(uint32_t x, uint64_t y) noexcept -> uint64_t { + return umul128_upper64(static_cast(x) << 32, y); } -template -int format_float(char* buf, std::size_t size, const char* format, int precision, - T value) { -#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION - if (precision > 100000) - throw std::runtime_error( - "fuzz mode - avoid large allocation inside snprintf"); -#endif - // Suppress the warning about nonliteral format string. - auto snprintf_ptr = FMT_SNPRINTF; - return precision < 0 ? snprintf_ptr(buf, size, format, value) - : snprintf_ptr(buf, size, format, precision, value); +// Computes lower 128 bits of multiplication of a 64-bit unsigned integer and a +// 128-bit unsigned integer. +inline auto umul192_lower128(uint64_t x, uint128_fallback y) noexcept + -> uint128_fallback { + uint64_t high = x * y.high(); + uint128_fallback high_low = umul128(x, y.low()); + return {high + high_low.high(), high_low.low()}; } -template -const char basic_data::digits[] = - "0001020304050607080910111213141516171819" - "2021222324252627282930313233343536373839" - "4041424344454647484950515253545556575859" - "6061626364656667686970717273747576777879" - "8081828384858687888990919293949596979899"; +// Computes lower 64 bits of multiplication of a 32-bit unsigned integer and a +// 64-bit unsigned integer. +inline auto umul96_lower64(uint32_t x, uint64_t y) noexcept -> uint64_t { + return x * y; +} -template -const char basic_data::hex_digits[] = "0123456789abcdef"; +// Various fast log computations. +inline auto floor_log10_pow2_minus_log10_4_over_3(int e) noexcept -> int { + FMT_ASSERT(e <= 2936 && e >= -2985, "too large exponent"); + return (e * 631305 - 261663) >> 21; +} -#define FMT_POWERS_OF_10(factor) \ - factor * 10, factor * 100, factor * 1000, factor * 10000, factor * 100000, \ - factor * 1000000, factor * 10000000, factor * 100000000, \ - factor * 1000000000 +FMT_INLINE_VARIABLE constexpr struct div_small_pow10_infos_struct { + uint32_t divisor; + int shift_amount; +} div_small_pow10_infos[] = {{10, 16}, {100, 16}}; + +// Replaces n by floor(n / pow(10, N)) returning true if and only if n is +// divisible by pow(10, N). +// Precondition: n <= pow(10, N + 1). +template +auto check_divisibility_and_divide_by_pow10(uint32_t& n) noexcept -> bool { + // The numbers below are chosen such that: + // 1. floor(n/d) = floor(nm / 2^k) where d=10 or d=100, + // 2. nm mod 2^k < m if and only if n is divisible by d, + // where m is magic_number, k is shift_amount + // and d is divisor. + // + // Item 1 is a common technique of replacing division by a constant with + // multiplication, see e.g. "Division by Invariant Integers Using + // Multiplication" by Granlund and Montgomery (1994). magic_number (m) is set + // to ceil(2^k/d) for large enough k. + // The idea for item 2 originates from Schubfach. + constexpr auto info = div_small_pow10_infos[N - 1]; + FMT_ASSERT(n <= info.divisor * 10, "n is too large"); + constexpr uint32_t magic_number = + (1u << info.shift_amount) / info.divisor + 1; + n *= magic_number; + const uint32_t comparison_mask = (1u << info.shift_amount) - 1; + bool result = (n & comparison_mask) < magic_number; + n >>= info.shift_amount; + return result; +} -template -const uint64_t basic_data::powers_of_10_64[] = { - 1, FMT_POWERS_OF_10(1), FMT_POWERS_OF_10(1000000000ull), - 10000000000000000000ull}; +// Computes floor(n / pow(10, N)) for small n and N. +// Precondition: n <= pow(10, N + 1). +template auto small_division_by_pow10(uint32_t n) noexcept -> uint32_t { + constexpr auto info = div_small_pow10_infos[N - 1]; + FMT_ASSERT(n <= info.divisor * 10, "n is too large"); + constexpr uint32_t magic_number = + (1u << info.shift_amount) / info.divisor + 1; + return (n * magic_number) >> info.shift_amount; +} -template -const uint32_t basic_data::zero_or_powers_of_10_32[] = {0, - FMT_POWERS_OF_10(1)}; +// Computes floor(n / 10^(kappa + 1)) (float) +inline auto divide_by_10_to_kappa_plus_1(uint32_t n) noexcept -> uint32_t { + // 1374389535 = ceil(2^37/100) + return static_cast((static_cast(n) * 1374389535) >> 37); +} +// Computes floor(n / 10^(kappa + 1)) (double) +inline auto divide_by_10_to_kappa_plus_1(uint64_t n) noexcept -> uint64_t { + // 2361183241434822607 = ceil(2^(64+7)/1000) + return umul128_upper64(n, 2361183241434822607ull) >> 7; +} -template -const uint64_t basic_data::zero_or_powers_of_10_64[] = { - 0, FMT_POWERS_OF_10(1), FMT_POWERS_OF_10(1000000000ull), - 10000000000000000000ull}; +// Various subroutines using pow10 cache +template struct cache_accessor; + +template <> struct cache_accessor { + using carrier_uint = float_info::carrier_uint; + using cache_entry_type = uint64_t; + + static auto get_cached_power(int k) noexcept -> uint64_t { + FMT_ASSERT(k >= float_info::min_k && k <= float_info::max_k, + "k is out of range"); + static constexpr uint64_t pow10_significands[] = { + 0x81ceb32c4b43fcf5, 0xa2425ff75e14fc32, 0xcad2f7f5359a3b3f, + 0xfd87b5f28300ca0e, 0x9e74d1b791e07e49, 0xc612062576589ddb, + 0xf79687aed3eec552, 0x9abe14cd44753b53, 0xc16d9a0095928a28, + 0xf1c90080baf72cb2, 0x971da05074da7bef, 0xbce5086492111aeb, + 0xec1e4a7db69561a6, 0x9392ee8e921d5d08, 0xb877aa3236a4b44a, + 0xe69594bec44de15c, 0x901d7cf73ab0acda, 0xb424dc35095cd810, + 0xe12e13424bb40e14, 0x8cbccc096f5088cc, 0xafebff0bcb24aaff, + 0xdbe6fecebdedd5bf, 0x89705f4136b4a598, 0xabcc77118461cefd, + 0xd6bf94d5e57a42bd, 0x8637bd05af6c69b6, 0xa7c5ac471b478424, + 0xd1b71758e219652c, 0x83126e978d4fdf3c, 0xa3d70a3d70a3d70b, + 0xcccccccccccccccd, 0x8000000000000000, 0xa000000000000000, + 0xc800000000000000, 0xfa00000000000000, 0x9c40000000000000, + 0xc350000000000000, 0xf424000000000000, 0x9896800000000000, + 0xbebc200000000000, 0xee6b280000000000, 0x9502f90000000000, + 0xba43b74000000000, 0xe8d4a51000000000, 0x9184e72a00000000, + 0xb5e620f480000000, 0xe35fa931a0000000, 0x8e1bc9bf04000000, + 0xb1a2bc2ec5000000, 0xde0b6b3a76400000, 0x8ac7230489e80000, + 0xad78ebc5ac620000, 0xd8d726b7177a8000, 0x878678326eac9000, + 0xa968163f0a57b400, 0xd3c21bcecceda100, 0x84595161401484a0, + 0xa56fa5b99019a5c8, 0xcecb8f27f4200f3a, 0x813f3978f8940985, + 0xa18f07d736b90be6, 0xc9f2c9cd04674edf, 0xfc6f7c4045812297, + 0x9dc5ada82b70b59e, 0xc5371912364ce306, 0xf684df56c3e01bc7, + 0x9a130b963a6c115d, 0xc097ce7bc90715b4, 0xf0bdc21abb48db21, + 0x96769950b50d88f5, 0xbc143fa4e250eb32, 0xeb194f8e1ae525fe, + 0x92efd1b8d0cf37bf, 0xb7abc627050305ae, 0xe596b7b0c643c71a, + 0x8f7e32ce7bea5c70, 0xb35dbf821ae4f38c, 0xe0352f62a19e306f}; + return pow10_significands[k - float_info::min_k]; + } -// Normalized 64-bit significands of pow(10, k), for k = -348, -340, ..., 340. -// These are generated by support/compute-powers.py. -template -const uint64_t basic_data::pow10_significands[] = { - 0xfa8fd5a0081c0288, 0xbaaee17fa23ebf76, 0x8b16fb203055ac76, - 0xcf42894a5dce35ea, 0x9a6bb0aa55653b2d, 0xe61acf033d1a45df, - 0xab70fe17c79ac6ca, 0xff77b1fcbebcdc4f, 0xbe5691ef416bd60c, - 0x8dd01fad907ffc3c, 0xd3515c2831559a83, 0x9d71ac8fada6c9b5, - 0xea9c227723ee8bcb, 0xaecc49914078536d, 0x823c12795db6ce57, - 0xc21094364dfb5637, 0x9096ea6f3848984f, 0xd77485cb25823ac7, - 0xa086cfcd97bf97f4, 0xef340a98172aace5, 0xb23867fb2a35b28e, - 0x84c8d4dfd2c63f3b, 0xc5dd44271ad3cdba, 0x936b9fcebb25c996, - 0xdbac6c247d62a584, 0xa3ab66580d5fdaf6, 0xf3e2f893dec3f126, - 0xb5b5ada8aaff80b8, 0x87625f056c7c4a8b, 0xc9bcff6034c13053, - 0x964e858c91ba2655, 0xdff9772470297ebd, 0xa6dfbd9fb8e5b88f, - 0xf8a95fcf88747d94, 0xb94470938fa89bcf, 0x8a08f0f8bf0f156b, - 0xcdb02555653131b6, 0x993fe2c6d07b7fac, 0xe45c10c42a2b3b06, - 0xaa242499697392d3, 0xfd87b5f28300ca0e, 0xbce5086492111aeb, - 0x8cbccc096f5088cc, 0xd1b71758e219652c, 0x9c40000000000000, - 0xe8d4a51000000000, 0xad78ebc5ac620000, 0x813f3978f8940984, - 0xc097ce7bc90715b3, 0x8f7e32ce7bea5c70, 0xd5d238a4abe98068, - 0x9f4f2726179a2245, 0xed63a231d4c4fb27, 0xb0de65388cc8ada8, - 0x83c7088e1aab65db, 0xc45d1df942711d9a, 0x924d692ca61be758, - 0xda01ee641a708dea, 0xa26da3999aef774a, 0xf209787bb47d6b85, - 0xb454e4a179dd1877, 0x865b86925b9bc5c2, 0xc83553c5c8965d3d, - 0x952ab45cfa97a0b3, 0xde469fbd99a05fe3, 0xa59bc234db398c25, - 0xf6c69a72a3989f5c, 0xb7dcbf5354e9bece, 0x88fcf317f22241e2, - 0xcc20ce9bd35c78a5, 0x98165af37b2153df, 0xe2a0b5dc971f303a, - 0xa8d9d1535ce3b396, 0xfb9b7cd9a4a7443c, 0xbb764c4ca7a44410, - 0x8bab8eefb6409c1a, 0xd01fef10a657842c, 0x9b10a4e5e9913129, - 0xe7109bfba19c0c9d, 0xac2820d9623bf429, 0x80444b5e7aa7cf85, - 0xbf21e44003acdd2d, 0x8e679c2f5e44ff8f, 0xd433179d9c8cb841, - 0x9e19db92b4e31ba9, 0xeb96bf6ebadf77d9, 0xaf87023b9bf0ee6b, -}; + struct compute_mul_result { + carrier_uint result; + bool is_integer; + }; + struct compute_mul_parity_result { + bool parity; + bool is_integer; + }; -// Binary exponents of pow(10, k), for k = -348, -340, ..., 340, corresponding -// to significands above. -template -const int16_t basic_data::pow10_exponents[] = { - -1220, -1193, -1166, -1140, -1113, -1087, -1060, -1034, -1007, -980, -954, - -927, -901, -874, -847, -821, -794, -768, -741, -715, -688, -661, - -635, -608, -582, -555, -529, -502, -475, -449, -422, -396, -369, - -343, -316, -289, -263, -236, -210, -183, -157, -130, -103, -77, - -50, -24, 3, 30, 56, 83, 109, 136, 162, 189, 216, - 242, 269, 295, 322, 348, 375, 402, 428, 455, 481, 508, - 534, 561, 588, 614, 641, 667, 694, 720, 747, 774, 800, - 827, 853, 880, 907, 933, 960, 986, 1013, 1039, 1066}; + static auto compute_mul(carrier_uint u, + const cache_entry_type& cache) noexcept + -> compute_mul_result { + auto r = umul96_upper64(u, cache); + return {static_cast(r >> 32), + static_cast(r) == 0}; + } -template -const char basic_data::foreground_color[] = "\x1b[38;2;"; -template -const char basic_data::background_color[] = "\x1b[48;2;"; -template const char basic_data::reset_color[] = "\x1b[0m"; -template const wchar_t basic_data::wreset_color[] = L"\x1b[0m"; + static auto compute_delta(const cache_entry_type& cache, int beta) noexcept + -> uint32_t { + return static_cast(cache >> (64 - 1 - beta)); + } -template struct bits { - static FMT_CONSTEXPR_DECL const int value = - static_cast(sizeof(T) * std::numeric_limits::digits); -}; + static auto compute_mul_parity(carrier_uint two_f, + const cache_entry_type& cache, + int beta) noexcept + -> compute_mul_parity_result { + FMT_ASSERT(beta >= 1, ""); + FMT_ASSERT(beta < 64, ""); -// A handmade floating-point number f * pow(2, e). -class fp { - private: - using significand_type = uint64_t; + auto r = umul96_lower64(two_f, cache); + return {((r >> (64 - beta)) & 1) != 0, + static_cast(r >> (32 - beta)) == 0}; + } + + static auto compute_left_endpoint_for_shorter_interval_case( + const cache_entry_type& cache, int beta) noexcept -> carrier_uint { + return static_cast( + (cache - (cache >> (num_significand_bits() + 2))) >> + (64 - num_significand_bits() - 1 - beta)); + } - // All sizes are in bits. - // Subtract 1 to account for an implicit most significant bit in the - // normalized form. - static FMT_CONSTEXPR_DECL const int double_significand_size = - std::numeric_limits::digits - 1; - static FMT_CONSTEXPR_DECL const uint64_t implicit_bit = - 1ull << double_significand_size; + static auto compute_right_endpoint_for_shorter_interval_case( + const cache_entry_type& cache, int beta) noexcept -> carrier_uint { + return static_cast( + (cache + (cache >> (num_significand_bits() + 1))) >> + (64 - num_significand_bits() - 1 - beta)); + } - public: - significand_type f; - int e; - - static FMT_CONSTEXPR_DECL const int significand_size = - bits::value; - - fp() : f(0), e(0) {} - fp(uint64_t f_val, int e_val) : f(f_val), e(e_val) {} - - // Constructs fp from an IEEE754 double. It is a template to prevent compile - // errors on platforms where double is not IEEE754. - template explicit fp(Double d) { - // Assume double is in the format [sign][exponent][significand]. - using limits = std::numeric_limits; - const int exponent_size = - bits::value - double_significand_size - 1; // -1 for sign - const uint64_t significand_mask = implicit_bit - 1; - const uint64_t exponent_mask = (~0ull >> 1) & ~significand_mask; - const int exponent_bias = (1 << exponent_size) - limits::max_exponent - 1; - auto u = bit_cast(d); - auto biased_e = (u & exponent_mask) >> double_significand_size; - f = u & significand_mask; - if (biased_e != 0) - f += implicit_bit; - else - biased_e = 1; // Subnormals use biased exponent 1 (min exponent). - e = static_cast(biased_e - exponent_bias - double_significand_size); - } - - // Normalizes the value converted from double and multiplied by (1 << SHIFT). - template void normalize() { - // Handle subnormals. - auto shifted_implicit_bit = implicit_bit << SHIFT; - while ((f & shifted_implicit_bit) == 0) { - f <<= 1; - --e; - } - // Subtract 1 to account for hidden bit. - auto offset = significand_size - double_significand_size - SHIFT - 1; - f <<= offset; - e -= offset; - } - - // Compute lower and upper boundaries (m^- and m^+ in the Grisu paper), where - // a boundary is a value half way between the number and its predecessor - // (lower) or successor (upper). The upper boundary is normalized and lower - // has the same exponent but may be not normalized. - void compute_boundaries(fp& lower, fp& upper) const { - lower = - f == implicit_bit ? fp((f << 2) - 1, e - 2) : fp((f << 1) - 1, e - 1); - upper = fp((f << 1) + 1, e - 1); - upper.normalize<1>(); // 1 is to account for the exponent shift above. - lower.f <<= lower.e - upper.e; - lower.e = upper.e; + static auto compute_round_up_for_shorter_interval_case( + const cache_entry_type& cache, int beta) noexcept -> carrier_uint { + return (static_cast( + cache >> (64 - num_significand_bits() - 2 - beta)) + + 1) / + 2; } }; -// Returns an fp number representing x - y. Result may not be normalized. -inline fp operator-(fp x, fp y) { - FMT_ASSERT(x.f >= y.f && x.e == y.e, "invalid operands"); - return fp(x.f - y.f, x.e); -} - -// Computes an fp number r with r.f = x.f * y.f / pow(2, 64) rounded to nearest -// with half-up tie breaking, r.e = x.e + y.e + 64. Result may not be -// normalized. -FMT_FUNC fp operator*(fp x, fp y) { - int exp = x.e + y.e + 64; -#if FMT_USE_INT128 - auto product = static_cast<__uint128_t>(x.f) * y.f; - auto f = static_cast(product >> 64); - if ((static_cast(product) & (1ULL << 63)) != 0) ++f; - return fp(f, exp); +template <> struct cache_accessor { + using carrier_uint = float_info::carrier_uint; + using cache_entry_type = uint128_fallback; + + static auto get_cached_power(int k) noexcept -> uint128_fallback { + FMT_ASSERT(k >= float_info::min_k && k <= float_info::max_k, + "k is out of range"); + + static constexpr uint128_fallback pow10_significands[] = { +#if FMT_USE_FULL_CACHE_DRAGONBOX + {0xff77b1fcbebcdc4f, 0x25e8e89c13bb0f7b}, + {0x9faacf3df73609b1, 0x77b191618c54e9ad}, + {0xc795830d75038c1d, 0xd59df5b9ef6a2418}, + {0xf97ae3d0d2446f25, 0x4b0573286b44ad1e}, + {0x9becce62836ac577, 0x4ee367f9430aec33}, + {0xc2e801fb244576d5, 0x229c41f793cda740}, + {0xf3a20279ed56d48a, 0x6b43527578c11110}, + {0x9845418c345644d6, 0x830a13896b78aaaa}, + {0xbe5691ef416bd60c, 0x23cc986bc656d554}, + {0xedec366b11c6cb8f, 0x2cbfbe86b7ec8aa9}, + {0x94b3a202eb1c3f39, 0x7bf7d71432f3d6aa}, + {0xb9e08a83a5e34f07, 0xdaf5ccd93fb0cc54}, + {0xe858ad248f5c22c9, 0xd1b3400f8f9cff69}, + {0x91376c36d99995be, 0x23100809b9c21fa2}, + {0xb58547448ffffb2d, 0xabd40a0c2832a78b}, + {0xe2e69915b3fff9f9, 0x16c90c8f323f516d}, + {0x8dd01fad907ffc3b, 0xae3da7d97f6792e4}, + {0xb1442798f49ffb4a, 0x99cd11cfdf41779d}, + {0xdd95317f31c7fa1d, 0x40405643d711d584}, + {0x8a7d3eef7f1cfc52, 0x482835ea666b2573}, + {0xad1c8eab5ee43b66, 0xda3243650005eed0}, + {0xd863b256369d4a40, 0x90bed43e40076a83}, + {0x873e4f75e2224e68, 0x5a7744a6e804a292}, + {0xa90de3535aaae202, 0x711515d0a205cb37}, + {0xd3515c2831559a83, 0x0d5a5b44ca873e04}, + {0x8412d9991ed58091, 0xe858790afe9486c3}, + {0xa5178fff668ae0b6, 0x626e974dbe39a873}, + {0xce5d73ff402d98e3, 0xfb0a3d212dc81290}, + {0x80fa687f881c7f8e, 0x7ce66634bc9d0b9a}, + {0xa139029f6a239f72, 0x1c1fffc1ebc44e81}, + {0xc987434744ac874e, 0xa327ffb266b56221}, + {0xfbe9141915d7a922, 0x4bf1ff9f0062baa9}, + {0x9d71ac8fada6c9b5, 0x6f773fc3603db4aa}, + {0xc4ce17b399107c22, 0xcb550fb4384d21d4}, + {0xf6019da07f549b2b, 0x7e2a53a146606a49}, + {0x99c102844f94e0fb, 0x2eda7444cbfc426e}, + {0xc0314325637a1939, 0xfa911155fefb5309}, + {0xf03d93eebc589f88, 0x793555ab7eba27cb}, + {0x96267c7535b763b5, 0x4bc1558b2f3458df}, + {0xbbb01b9283253ca2, 0x9eb1aaedfb016f17}, + {0xea9c227723ee8bcb, 0x465e15a979c1cadd}, + {0x92a1958a7675175f, 0x0bfacd89ec191eca}, + {0xb749faed14125d36, 0xcef980ec671f667c}, + {0xe51c79a85916f484, 0x82b7e12780e7401b}, + {0x8f31cc0937ae58d2, 0xd1b2ecb8b0908811}, + {0xb2fe3f0b8599ef07, 0x861fa7e6dcb4aa16}, + {0xdfbdcece67006ac9, 0x67a791e093e1d49b}, + {0x8bd6a141006042bd, 0xe0c8bb2c5c6d24e1}, + {0xaecc49914078536d, 0x58fae9f773886e19}, + {0xda7f5bf590966848, 0xaf39a475506a899f}, + {0x888f99797a5e012d, 0x6d8406c952429604}, + {0xaab37fd7d8f58178, 0xc8e5087ba6d33b84}, + {0xd5605fcdcf32e1d6, 0xfb1e4a9a90880a65}, + {0x855c3be0a17fcd26, 0x5cf2eea09a550680}, + {0xa6b34ad8c9dfc06f, 0xf42faa48c0ea481f}, + {0xd0601d8efc57b08b, 0xf13b94daf124da27}, + {0x823c12795db6ce57, 0x76c53d08d6b70859}, + {0xa2cb1717b52481ed, 0x54768c4b0c64ca6f}, + {0xcb7ddcdda26da268, 0xa9942f5dcf7dfd0a}, + {0xfe5d54150b090b02, 0xd3f93b35435d7c4d}, + {0x9efa548d26e5a6e1, 0xc47bc5014a1a6db0}, + {0xc6b8e9b0709f109a, 0x359ab6419ca1091c}, + {0xf867241c8cc6d4c0, 0xc30163d203c94b63}, + {0x9b407691d7fc44f8, 0x79e0de63425dcf1e}, + {0xc21094364dfb5636, 0x985915fc12f542e5}, + {0xf294b943e17a2bc4, 0x3e6f5b7b17b2939e}, + {0x979cf3ca6cec5b5a, 0xa705992ceecf9c43}, + {0xbd8430bd08277231, 0x50c6ff782a838354}, + {0xece53cec4a314ebd, 0xa4f8bf5635246429}, + {0x940f4613ae5ed136, 0x871b7795e136be9a}, + {0xb913179899f68584, 0x28e2557b59846e40}, + {0xe757dd7ec07426e5, 0x331aeada2fe589d0}, + {0x9096ea6f3848984f, 0x3ff0d2c85def7622}, + {0xb4bca50b065abe63, 0x0fed077a756b53aa}, + {0xe1ebce4dc7f16dfb, 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0x385bb19cb14bdfc5}, + {0xfcf62c1dee382c42, 0x46729e03dd9ed7b6}, + {0x9e19db92b4e31ba9, 0x6c07a2c26a8346d2}, + {0xc5a05277621be293, 0xc7098b7305241886}, + {0xf70867153aa2db38, 0xb8cbee4fc66d1ea8}, + {0x9a65406d44a5c903, 0x737f74f1dc043329}, + {0xc0fe908895cf3b44, 0x505f522e53053ff3}, + {0xf13e34aabb430a15, 0x647726b9e7c68ff0}, + {0x96c6e0eab509e64d, 0x5eca783430dc19f6}, + {0xbc789925624c5fe0, 0xb67d16413d132073}, + {0xeb96bf6ebadf77d8, 0xe41c5bd18c57e890}, + {0x933e37a534cbaae7, 0x8e91b962f7b6f15a}, + {0xb80dc58e81fe95a1, 0x723627bbb5a4adb1}, + {0xe61136f2227e3b09, 0xcec3b1aaa30dd91d}, + {0x8fcac257558ee4e6, 0x213a4f0aa5e8a7b2}, + {0xb3bd72ed2af29e1f, 0xa988e2cd4f62d19e}, + {0xe0accfa875af45a7, 0x93eb1b80a33b8606}, + {0x8c6c01c9498d8b88, 0xbc72f130660533c4}, + {0xaf87023b9bf0ee6a, 0xeb8fad7c7f8680b5}, + {0xdb68c2ca82ed2a05, 0xa67398db9f6820e2}, #else - // Multiply 32-bit parts of significands. - uint64_t mask = (1ULL << 32) - 1; - uint64_t a = x.f >> 32, b = x.f & mask; - uint64_t c = y.f >> 32, d = y.f & mask; - uint64_t ac = a * c, bc = b * c, ad = a * d, bd = b * d; - // Compute mid 64-bit of result and round. - uint64_t mid = (bd >> 32) + (ad & mask) + (bc & mask) + (1U << 31); - return fp(ac + (ad >> 32) + (bc >> 32) + (mid >> 32), exp); + {0xff77b1fcbebcdc4f, 0x25e8e89c13bb0f7b}, + {0xce5d73ff402d98e3, 0xfb0a3d212dc81290}, + {0xa6b34ad8c9dfc06f, 0xf42faa48c0ea481f}, + {0x86a8d39ef77164bc, 0xae5dff9c02033198}, + {0xd98ddaee19068c76, 0x3badd624dd9b0958}, + {0xafbd2350644eeacf, 0xe5d1929ef90898fb}, + {0x8df5efabc5979c8f, 0xca8d3ffa1ef463c2}, + {0xe55990879ddcaabd, 0xcc420a6a101d0516}, + {0xb94470938fa89bce, 0xf808e40e8d5b3e6a}, + {0x95a8637627989aad, 0xdde7001379a44aa9}, + {0xf1c90080baf72cb1, 0x5324c68b12dd6339}, + {0xc350000000000000, 0x0000000000000000}, + {0x9dc5ada82b70b59d, 0xf020000000000000}, + {0xfee50b7025c36a08, 0x02f236d04753d5b5}, + {0xcde6fd5e09abcf26, 0xed4c0226b55e6f87}, + {0xa6539930bf6bff45, 0x84db8346b786151d}, + {0x865b86925b9bc5c2, 0x0b8a2392ba45a9b3}, + {0xd910f7ff28069da4, 0x1b2ba1518094da05}, + {0xaf58416654a6babb, 0x387ac8d1970027b3}, + {0x8da471a9de737e24, 0x5ceaecfed289e5d3}, + {0xe4d5e82392a40515, 0x0fabaf3feaa5334b}, + {0xb8da1662e7b00a17, 0x3d6a751f3b936244}, + {0x95527a5202df0ccb, 0x0f37801e0c43ebc9}, + {0xf13e34aabb430a15, 0x647726b9e7c68ff0} #endif -} + }; -// Returns cached power (of 10) c_k = c_k.f * pow(2, c_k.e) such that its -// (binary) exponent satisfies min_exponent <= c_k.e <= min_exponent + 28. -FMT_FUNC fp get_cached_power(int min_exponent, int& pow10_exponent) { - const double one_over_log2_10 = 0.30102999566398114; // 1 / log2(10) - int index = static_cast( - std::ceil((min_exponent + fp::significand_size - 1) * one_over_log2_10)); - // Decimal exponent of the first (smallest) cached power of 10. - const int first_dec_exp = -348; - // Difference between 2 consecutive decimal exponents in cached powers of 10. - const int dec_exp_step = 8; - index = (index - first_dec_exp - 1) / dec_exp_step + 1; - pow10_exponent = first_dec_exp + index * dec_exp_step; - return fp(data::pow10_significands[index], data::pow10_exponents[index]); -} - -enum round_direction { unknown, up, down }; - -// Given the divisor (normally a power of 10), the remainder = v % divisor for -// some number v and the error, returns whether v should be rounded up, down, or -// whether the rounding direction can't be determined due to error. -// error should be less than divisor / 2. -inline round_direction get_round_direction(uint64_t divisor, uint64_t remainder, - uint64_t error) { - FMT_ASSERT(remainder < divisor, ""); // divisor - remainder won't overflow. - FMT_ASSERT(error < divisor, ""); // divisor - error won't overflow. - FMT_ASSERT(error < divisor - error, ""); // error * 2 won't overflow. - // Round down if (remainder + error) * 2 <= divisor. - if (remainder <= divisor - remainder && error * 2 <= divisor - remainder * 2) - return down; - // Round up if (remainder - error) * 2 >= divisor. - if (remainder >= error && - remainder - error >= divisor - (remainder - error)) { - return up; - } - return unknown; -} - -namespace digits { -enum result { - more, // Generate more digits. - done, // Done generating digits. - error // Digit generation cancelled due to an error. -}; -} +#if FMT_USE_FULL_CACHE_DRAGONBOX + return pow10_significands[k - float_info::min_k]; +#else + static constexpr uint64_t powers_of_5_64[] = { + 0x0000000000000001, 0x0000000000000005, 0x0000000000000019, + 0x000000000000007d, 0x0000000000000271, 0x0000000000000c35, + 0x0000000000003d09, 0x000000000001312d, 0x000000000005f5e1, + 0x00000000001dcd65, 0x00000000009502f9, 0x0000000002e90edd, + 0x000000000e8d4a51, 0x0000000048c27395, 0x000000016bcc41e9, + 0x000000071afd498d, 0x0000002386f26fc1, 0x000000b1a2bc2ec5, + 0x000003782dace9d9, 0x00001158e460913d, 0x000056bc75e2d631, + 0x0001b1ae4d6e2ef5, 0x000878678326eac9, 0x002a5a058fc295ed, + 0x00d3c21bcecceda1, 0x0422ca8b0a00a425, 0x14adf4b7320334b9}; + + static const int compression_ratio = 27; + + // Compute base index. + int cache_index = (k - float_info::min_k) / compression_ratio; + int kb = cache_index * compression_ratio + float_info::min_k; + int offset = k - kb; + + // Get base cache. + uint128_fallback base_cache = pow10_significands[cache_index]; + if (offset == 0) return base_cache; + + // Compute the required amount of bit-shift. + int alpha = floor_log2_pow10(kb + offset) - floor_log2_pow10(kb) - offset; + FMT_ASSERT(alpha > 0 && alpha < 64, "shifting error detected"); + + // Try to recover the real cache. + uint64_t pow5 = powers_of_5_64[offset]; + uint128_fallback recovered_cache = umul128(base_cache.high(), pow5); + uint128_fallback middle_low = umul128(base_cache.low(), pow5); + + recovered_cache += middle_low.high(); + + uint64_t high_to_middle = recovered_cache.high() << (64 - alpha); + uint64_t middle_to_low = recovered_cache.low() << (64 - alpha); + + recovered_cache = + uint128_fallback{(recovered_cache.low() >> alpha) | high_to_middle, + ((middle_low.low() >> alpha) | middle_to_low)}; + FMT_ASSERT(recovered_cache.low() + 1 != 0, ""); + return {recovered_cache.high(), recovered_cache.low() + 1}; +#endif + } -// Generates output using the Grisu digit-gen algorithm. -// error: the size of the region (lower, upper) outside of which numbers -// definitely do not round to value (Delta in Grisu3). -template -digits::result grisu_gen_digits(fp value, uint64_t error, int& exp, - Handler& handler) { - fp one(1ull << -value.e, value.e); - // The integral part of scaled value (p1 in Grisu) = value / one. It cannot be - // zero because it contains a product of two 64-bit numbers with MSB set (due - // to normalization) - 1, shifted right by at most 60 bits. - uint32_t integral = static_cast(value.f >> -one.e); - FMT_ASSERT(integral != 0, ""); - FMT_ASSERT(integral == value.f >> -one.e, ""); - // The fractional part of scaled value (p2 in Grisu) c = value % one. - uint64_t fractional = value.f & (one.f - 1); - exp = count_digits(integral); // kappa in Grisu. - // Divide by 10 to prevent overflow. - auto result = handler.on_start(data::powers_of_10_64[exp - 1] << -one.e, - value.f / 10, error * 10, exp); - if (result != digits::more) return result; - // Generate digits for the integral part. This can produce up to 10 digits. - do { - uint32_t digit = 0; - // This optimization by miloyip reduces the number of integer divisions by - // one per iteration. - switch (exp) { - case 10: - digit = integral / 1000000000; - integral %= 1000000000; - break; - case 9: - digit = integral / 100000000; - integral %= 100000000; - break; - case 8: - digit = integral / 10000000; - integral %= 10000000; - break; - case 7: - digit = integral / 1000000; - integral %= 1000000; - break; - case 6: - digit = integral / 100000; - integral %= 100000; - break; - case 5: - digit = integral / 10000; - integral %= 10000; - break; - case 4: - digit = integral / 1000; - integral %= 1000; - break; - case 3: - digit = integral / 100; - integral %= 100; - break; - case 2: - digit = integral / 10; - integral %= 10; - break; - case 1: - digit = integral; - integral = 0; - break; - default: - FMT_ASSERT(false, "invalid number of digits"); - } - --exp; - uint64_t remainder = - (static_cast(integral) << -one.e) + fractional; - result = handler.on_digit(static_cast('0' + digit), - data::powers_of_10_64[exp] << -one.e, remainder, - error, exp, true); - if (result != digits::more) return result; - } while (exp > 0); - // Generate digits for the fractional part. - for (;;) { - fractional *= 10; - error *= 10; - char digit = - static_cast('0' + static_cast(fractional >> -one.e)); - fractional &= one.f - 1; - --exp; - result = handler.on_digit(digit, one.f, fractional, error, exp, false); - if (result != digits::more) return result; - } -} - -// The fixed precision digit handler. -struct fixed_handler { - char* buf; - int size; - int precision; - int exp10; - bool fixed; - - digits::result on_start(uint64_t divisor, uint64_t remainder, uint64_t error, - int& exp) { - // Non-fixed formats require at least one digit and no precision adjustment. - if (!fixed) return digits::more; - // Adjust fixed precision by exponent because it is relative to decimal - // point. - precision += exp + exp10; - // Check if precision is satisfied just by leading zeros, e.g. - // format("{:.2f}", 0.001) gives "0.00" without generating any digits. - if (precision > 0) return digits::more; - if (precision < 0) return digits::done; - auto dir = get_round_direction(divisor, remainder, error); - if (dir == unknown) return digits::error; - buf[size++] = dir == up ? '1' : '0'; - return digits::done; - } - - digits::result on_digit(char digit, uint64_t divisor, uint64_t remainder, - uint64_t error, int, bool integral) { - FMT_ASSERT(remainder < divisor, ""); - buf[size++] = digit; - if (size < precision) return digits::more; - if (!integral) { - // Check if error * 2 < divisor with overflow prevention. - // The check is not needed for the integral part because error = 1 - // and divisor > (1 << 32) there. - if (error >= divisor || error >= divisor - error) return digits::error; - } else { - FMT_ASSERT(error == 1 && divisor > 2, ""); - } - auto dir = get_round_direction(divisor, remainder, error); - if (dir != up) return dir == down ? digits::done : digits::error; - ++buf[size - 1]; - for (int i = size - 1; i > 0 && buf[i] > '9'; --i) { - buf[i] = '0'; - ++buf[i - 1]; - } - if (buf[0] > '9') { - buf[0] = '1'; - buf[size++] = '0'; - } - return digits::done; + struct compute_mul_result { + carrier_uint result; + bool is_integer; + }; + struct compute_mul_parity_result { + bool parity; + bool is_integer; + }; + + static auto compute_mul(carrier_uint u, + const cache_entry_type& cache) noexcept + -> compute_mul_result { + auto r = umul192_upper128(u, cache); + return {r.high(), r.low() == 0}; } -}; -// The shortest representation digit handler. -template struct grisu_shortest_handler { - char* buf; - int size; - // Distance between scaled value and upper bound (wp_W in Grisu3). - uint64_t diff; - - digits::result on_start(uint64_t, uint64_t, uint64_t, int&) { - return digits::more; - } - - // Decrement the generated number approaching value from above. - void round(uint64_t d, uint64_t divisor, uint64_t& remainder, - uint64_t error) { - while ( - remainder < d && error - remainder >= divisor && - (remainder + divisor < d || d - remainder >= remainder + divisor - d)) { - --buf[size - 1]; - remainder += divisor; - } + static auto compute_delta(const cache_entry_type& cache, int beta) noexcept + -> uint32_t { + return static_cast(cache.high() >> (64 - 1 - beta)); } - // Implements Grisu's round_weed. - digits::result on_digit(char digit, uint64_t divisor, uint64_t remainder, - uint64_t error, int exp, bool integral) { - buf[size++] = digit; - if (remainder >= error) return digits::more; - if (GRISU_VERSION != 3) { - uint64_t d = integral ? diff : diff * data::powers_of_10_64[-exp]; - round(d, divisor, remainder, error); - return digits::done; - } - uint64_t unit = integral ? 1 : data::powers_of_10_64[-exp]; - uint64_t up = (diff - 1) * unit; // wp_Wup - round(up, divisor, remainder, error); - uint64_t down = (diff + 1) * unit; // wp_Wdown - if (remainder < down && error - remainder >= divisor && - (remainder + divisor < down || - down - remainder > remainder + divisor - down)) { - return digits::error; - } - return 2 * unit <= remainder && remainder <= error - 4 * unit - ? digits::done - : digits::error; + static auto compute_mul_parity(carrier_uint two_f, + const cache_entry_type& cache, + int beta) noexcept + -> compute_mul_parity_result { + FMT_ASSERT(beta >= 1, ""); + FMT_ASSERT(beta < 64, ""); + + auto r = umul192_lower128(two_f, cache); + return {((r.high() >> (64 - beta)) & 1) != 0, + ((r.high() << beta) | (r.low() >> (64 - beta))) == 0}; } -}; -template > -FMT_API bool grisu_format(Double value, buffer& buf, int precision, - unsigned options, int& exp) { - FMT_ASSERT(value >= 0, "value is negative"); - bool fixed = (options & grisu_options::fixed) != 0; - if (value <= 0) { // <= instead of == to silence a warning. - if (precision <= 0 || !fixed) { - exp = 0; - buf.push_back('0'); - } else { - exp = -precision; - buf.resize(to_unsigned(precision)); - std::uninitialized_fill_n(buf.data(), precision, '0'); - } - return true; + static auto compute_left_endpoint_for_shorter_interval_case( + const cache_entry_type& cache, int beta) noexcept -> carrier_uint { + return (cache.high() - + (cache.high() >> (num_significand_bits() + 2))) >> + (64 - num_significand_bits() - 1 - beta); } - fp fp_value(value); - const int min_exp = -60; // alpha in Grisu. - int cached_exp10 = 0; // K in Grisu. - if (precision != -1) { - if (precision > 17) return false; - fp_value.normalize(); - auto cached_pow = get_cached_power( - min_exp - (fp_value.e + fp::significand_size), cached_exp10); - fp_value = fp_value * cached_pow; - fixed_handler handler{buf.data(), 0, precision, -cached_exp10, fixed}; - if (grisu_gen_digits(fp_value, 1, exp, handler) == digits::error) - return false; - buf.resize(to_unsigned(handler.size)); - } else { - fp lower, upper; // w^- and w^+ in the Grisu paper. - fp_value.compute_boundaries(lower, upper); - // Find a cached power of 10 such that multiplying upper by it will bring - // the exponent in the range [min_exp, -32]. - auto cached_pow = get_cached_power( // \tilde{c}_{-k} in Grisu. - min_exp - (upper.e + fp::significand_size), cached_exp10); - fp_value.normalize(); - fp_value = fp_value * cached_pow; - lower = lower * cached_pow; // \tilde{M}^- in Grisu. - upper = upper * cached_pow; // \tilde{M}^+ in Grisu. - assert(min_exp <= upper.e && upper.e <= -32); - auto result = digits::result(); - int size = 0; - if ((options & grisu_options::grisu3) != 0) { - --lower.f; // \tilde{M}^- - 1 ulp -> M^-_{\downarrow}. - ++upper.f; // \tilde{M}^+ + 1 ulp -> M^+_{\uparrow}. - // Numbers outside of (lower, upper) definitely do not round to value. - grisu_shortest_handler<3> handler{buf.data(), 0, (upper - fp_value).f}; - result = grisu_gen_digits(upper, upper.f - lower.f, exp, handler); - size = handler.size; - } else { - ++lower.f; // \tilde{M}^- + 1 ulp -> M^-_{\uparrow}. - --upper.f; // \tilde{M}^+ - 1 ulp -> M^+_{\downarrow}. - grisu_shortest_handler<2> handler{buf.data(), 0, (upper - fp_value).f}; - result = grisu_gen_digits(upper, upper.f - lower.f, exp, handler); - size = handler.size; - } - if (result == digits::error) return false; - buf.resize(to_unsigned(size)); - } - exp -= cached_exp10; - return true; -} - -template -char* sprintf_format(Double value, internal::buffer& buf, - sprintf_specs specs) { - // Buffer capacity must be non-zero, otherwise MSVC's vsnprintf_s will fail. - FMT_ASSERT(buf.capacity() != 0, "empty buffer"); - - // Build format string. - enum { max_format_size = 10 }; // longest format: %#-*.*Lg - char format[max_format_size]; - char* format_ptr = format; - *format_ptr++ = '%'; - if (specs.alt || !specs.type) *format_ptr++ = '#'; - if (specs.precision >= 0) { - *format_ptr++ = '.'; - *format_ptr++ = '*'; - } - if (std::is_same::value) *format_ptr++ = 'L'; - - char type = specs.type; - - if (type == '%') - type = 'f'; - else if (type == 0 || type == 'n') - type = 'g'; -#if FMT_MSC_VER - if (type == 'F') { - // MSVC's printf doesn't support 'F'. - type = 'f'; + static auto compute_right_endpoint_for_shorter_interval_case( + const cache_entry_type& cache, int beta) noexcept -> carrier_uint { + return (cache.high() + + (cache.high() >> (num_significand_bits() + 1))) >> + (64 - num_significand_bits() - 1 - beta); } -#endif - *format_ptr++ = type; - *format_ptr = '\0'; - - // Format using snprintf. - char* start = nullptr; - char* decimal_point_pos = nullptr; - for (;;) { - std::size_t buffer_size = buf.capacity(); - start = &buf[0]; - int result = - format_float(start, buffer_size, format, specs.precision, value); - if (result >= 0) { - unsigned n = internal::to_unsigned(result); - if (n < buf.capacity()) { - // Find the decimal point. - auto p = buf.data(), end = p + n; - if (*p == '+' || *p == '-') ++p; - if (specs.type != 'a' && specs.type != 'A') { - while (p < end && *p >= '0' && *p <= '9') ++p; - if (p < end && *p != 'e' && *p != 'E') { - decimal_point_pos = p; - if (!specs.type) { - // Keep only one trailing zero after the decimal point. - ++p; - if (*p == '0') ++p; - while (p != end && *p >= '1' && *p <= '9') ++p; - char* where = p; - while (p != end && *p == '0') ++p; - if (p == end || *p < '0' || *p > '9') { - if (p != end) std::memmove(where, p, to_unsigned(end - p)); - n -= static_cast(p - where); - } - } - } - } - buf.resize(n); - break; // The buffer is large enough - continue with formatting. - } - buf.reserve(n + 1); - } else { - // If result is negative we ask to increase the capacity by at least 1, - // but as std::vector, the buffer grows exponentially. - buf.reserve(buf.capacity() + 1); - } + + static auto compute_round_up_for_shorter_interval_case( + const cache_entry_type& cache, int beta) noexcept -> carrier_uint { + return ((cache.high() >> (64 - num_significand_bits() - 2 - beta)) + + 1) / + 2; } - return decimal_point_pos; +}; + +FMT_FUNC auto get_cached_power(int k) noexcept -> uint128_fallback { + return cache_accessor::get_cached_power(k); } -} // namespace internal -#if FMT_USE_WINDOWS_H +// Various integer checks +template +auto is_left_endpoint_integer_shorter_interval(int exponent) noexcept -> bool { + const int case_shorter_interval_left_endpoint_lower_threshold = 2; + const int case_shorter_interval_left_endpoint_upper_threshold = 3; + return exponent >= case_shorter_interval_left_endpoint_lower_threshold && + exponent <= case_shorter_interval_left_endpoint_upper_threshold; +} -FMT_FUNC internal::utf8_to_utf16::utf8_to_utf16(string_view s) { - static const char ERROR_MSG[] = "cannot convert string from UTF-8 to UTF-16"; - if (s.size() > INT_MAX) - FMT_THROW(windows_error(ERROR_INVALID_PARAMETER, ERROR_MSG)); - int s_size = static_cast(s.size()); - if (s_size == 0) { - // MultiByteToWideChar does not support zero length, handle separately. - buffer_.resize(1); - buffer_[0] = 0; - return; +// Remove trailing zeros from n and return the number of zeros removed (float). +FMT_INLINE auto remove_trailing_zeros(uint32_t& n, int s = 0) noexcept -> int { + FMT_ASSERT(n != 0, ""); + // Modular inverse of 5 (mod 2^32): (mod_inv_5 * 5) mod 2^32 = 1. + constexpr uint32_t mod_inv_5 = 0xcccccccd; + constexpr uint32_t mod_inv_25 = 0xc28f5c29; // = mod_inv_5 * mod_inv_5 + + while (true) { + auto q = rotr(n * mod_inv_25, 2); + if (q > max_value() / 100) break; + n = q; + s += 2; } - - int length = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, s.data(), - s_size, nullptr, 0); - if (length == 0) FMT_THROW(windows_error(GetLastError(), ERROR_MSG)); - buffer_.resize(length + 1); - length = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, s.data(), s_size, - &buffer_[0], length); - if (length == 0) FMT_THROW(windows_error(GetLastError(), ERROR_MSG)); - buffer_[length] = 0; + auto q = rotr(n * mod_inv_5, 1); + if (q <= max_value() / 10) { + n = q; + s |= 1; + } + return s; } -FMT_FUNC internal::utf16_to_utf8::utf16_to_utf8(wstring_view s) { - if (int error_code = convert(s)) { - FMT_THROW(windows_error(error_code, - "cannot convert string from UTF-16 to UTF-8")); +// Removes trailing zeros and returns the number of zeros removed (double). +FMT_INLINE auto remove_trailing_zeros(uint64_t& n) noexcept -> int { + FMT_ASSERT(n != 0, ""); + + // Is n is divisible by 10^8? + constexpr uint32_t ten_pow_8 = 100000000u; + if ((n % ten_pow_8) == 0) { + // If yes, work with the quotient... + auto n32 = static_cast(n / ten_pow_8); + // ... and use the 32 bit variant of the function + int num_zeros = remove_trailing_zeros(n32, 8); + n = n32; + return num_zeros; } -} -FMT_FUNC int internal::utf16_to_utf8::convert(wstring_view s) { - if (s.size() > INT_MAX) return ERROR_INVALID_PARAMETER; - int s_size = static_cast(s.size()); - if (s_size == 0) { - // WideCharToMultiByte does not support zero length, handle separately. - buffer_.resize(1); - buffer_[0] = 0; - return 0; + // If n is not divisible by 10^8, work with n itself. + constexpr uint64_t mod_inv_5 = 0xcccccccccccccccd; + constexpr uint64_t mod_inv_25 = 0x8f5c28f5c28f5c29; // mod_inv_5 * mod_inv_5 + + int s = 0; + while (true) { + auto q = rotr(n * mod_inv_25, 2); + if (q > max_value() / 100) break; + n = q; + s += 2; + } + auto q = rotr(n * mod_inv_5, 1); + if (q <= max_value() / 10) { + n = q; + s |= 1; } - int length = WideCharToMultiByte(CP_UTF8, 0, s.data(), s_size, nullptr, 0, - nullptr, nullptr); - if (length == 0) return GetLastError(); - buffer_.resize(length + 1); - length = WideCharToMultiByte(CP_UTF8, 0, s.data(), s_size, &buffer_[0], - length, nullptr, nullptr); - if (length == 0) return GetLastError(); - buffer_[length] = 0; - return 0; + return s; } -FMT_FUNC void windows_error::init(int err_code, string_view format_str, - format_args args) { - error_code_ = err_code; - memory_buffer buffer; - internal::format_windows_error(buffer, err_code, vformat(format_str, args)); - std::runtime_error& base = *this; - base = std::runtime_error(to_string(buffer)); +// The main algorithm for shorter interval case +template +FMT_INLINE auto shorter_interval_case(int exponent) noexcept -> decimal_fp { + decimal_fp ret_value; + // Compute k and beta + const int minus_k = floor_log10_pow2_minus_log10_4_over_3(exponent); + const int beta = exponent + floor_log2_pow10(-minus_k); + + // Compute xi and zi + using cache_entry_type = typename cache_accessor::cache_entry_type; + const cache_entry_type cache = cache_accessor::get_cached_power(-minus_k); + + auto xi = cache_accessor::compute_left_endpoint_for_shorter_interval_case( + cache, beta); + auto zi = cache_accessor::compute_right_endpoint_for_shorter_interval_case( + cache, beta); + + // If the left endpoint is not an integer, increase it + if (!is_left_endpoint_integer_shorter_interval(exponent)) ++xi; + + // Try bigger divisor + ret_value.significand = zi / 10; + + // If succeed, remove trailing zeros if necessary and return + if (ret_value.significand * 10 >= xi) { + ret_value.exponent = minus_k + 1; + ret_value.exponent += remove_trailing_zeros(ret_value.significand); + return ret_value; + } + + // Otherwise, compute the round-up of y + ret_value.significand = + cache_accessor::compute_round_up_for_shorter_interval_case(cache, + beta); + ret_value.exponent = minus_k; + + // When tie occurs, choose one of them according to the rule + if (exponent >= float_info::shorter_interval_tie_lower_threshold && + exponent <= float_info::shorter_interval_tie_upper_threshold) { + ret_value.significand = ret_value.significand % 2 == 0 + ? ret_value.significand + : ret_value.significand - 1; + } else if (ret_value.significand < xi) { + ++ret_value.significand; + } + return ret_value; } -FMT_FUNC void internal::format_windows_error(internal::buffer& out, - int error_code, - string_view message) FMT_NOEXCEPT { - FMT_TRY { - wmemory_buffer buf; - buf.resize(inline_buffer_size); - for (;;) { - wchar_t* system_message = &buf[0]; - int result = FormatMessageW( - FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, nullptr, - error_code, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), system_message, - static_cast(buf.size()), nullptr); - if (result != 0) { - utf16_to_utf8 utf8_message; - if (utf8_message.convert(system_message) == ERROR_SUCCESS) { - internal::writer w(out); - w.write(message); - w.write(": "); - w.write(utf8_message); - return; - } - break; - } - if (GetLastError() != ERROR_INSUFFICIENT_BUFFER) - break; // Can't get error message, report error code instead. - buf.resize(buf.size() * 2); +template auto to_decimal(T x) noexcept -> decimal_fp { + // Step 1: integer promotion & Schubfach multiplier calculation. + + using carrier_uint = typename float_info::carrier_uint; + using cache_entry_type = typename cache_accessor::cache_entry_type; + auto br = bit_cast(x); + + // Extract significand bits and exponent bits. + const carrier_uint significand_mask = + (static_cast(1) << num_significand_bits()) - 1; + carrier_uint significand = (br & significand_mask); + int exponent = + static_cast((br & exponent_mask()) >> num_significand_bits()); + + if (exponent != 0) { // Check if normal. + exponent -= exponent_bias() + num_significand_bits(); + + // Shorter interval case; proceed like Schubfach. + // In fact, when exponent == 1 and significand == 0, the interval is + // regular. However, it can be shown that the end-results are anyway same. + if (significand == 0) return shorter_interval_case(exponent); + + significand |= (static_cast(1) << num_significand_bits()); + } else { + // Subnormal case; the interval is always regular. + if (significand == 0) return {0, 0}; + exponent = + std::numeric_limits::min_exponent - num_significand_bits() - 1; + } + + const bool include_left_endpoint = (significand % 2 == 0); + const bool include_right_endpoint = include_left_endpoint; + + // Compute k and beta. + const int minus_k = floor_log10_pow2(exponent) - float_info::kappa; + const cache_entry_type cache = cache_accessor::get_cached_power(-minus_k); + const int beta = exponent + floor_log2_pow10(-minus_k); + + // Compute zi and deltai. + // 10^kappa <= deltai < 10^(kappa + 1) + const uint32_t deltai = cache_accessor::compute_delta(cache, beta); + const carrier_uint two_fc = significand << 1; + + // For the case of binary32, the result of integer check is not correct for + // 29711844 * 2^-82 + // = 6.1442653300000000008655037797566933477355632930994033813476... * 10^-18 + // and 29711844 * 2^-81 + // = 1.2288530660000000001731007559513386695471126586198806762695... * 10^-17, + // and they are the unique counterexamples. However, since 29711844 is even, + // this does not cause any problem for the endpoints calculations; it can only + // cause a problem when we need to perform integer check for the center. + // Fortunately, with these inputs, that branch is never executed, so we are + // fine. + const typename cache_accessor::compute_mul_result z_mul = + cache_accessor::compute_mul((two_fc | 1) << beta, cache); + + // Step 2: Try larger divisor; remove trailing zeros if necessary. + + // Using an upper bound on zi, we might be able to optimize the division + // better than the compiler; we are computing zi / big_divisor here. + decimal_fp ret_value; + ret_value.significand = divide_by_10_to_kappa_plus_1(z_mul.result); + uint32_t r = static_cast(z_mul.result - float_info::big_divisor * + ret_value.significand); + + if (r < deltai) { + // Exclude the right endpoint if necessary. + if (r == 0 && (z_mul.is_integer & !include_right_endpoint)) { + --ret_value.significand; + r = float_info::big_divisor; + goto small_divisor_case_label; } + } else if (r > deltai) { + goto small_divisor_case_label; + } else { + // r == deltai; compare fractional parts. + const typename cache_accessor::compute_mul_parity_result x_mul = + cache_accessor::compute_mul_parity(two_fc - 1, cache, beta); + + if (!(x_mul.parity | (x_mul.is_integer & include_left_endpoint))) + goto small_divisor_case_label; } - FMT_CATCH(...) {} - format_error_code(out, error_code, message); + ret_value.exponent = minus_k + float_info::kappa + 1; + + // We may need to remove trailing zeros. + ret_value.exponent += remove_trailing_zeros(ret_value.significand); + return ret_value; + + // Step 3: Find the significand with the smaller divisor. + +small_divisor_case_label: + ret_value.significand *= 10; + ret_value.exponent = minus_k + float_info::kappa; + + uint32_t dist = r - (deltai / 2) + (float_info::small_divisor / 2); + const bool approx_y_parity = + ((dist ^ (float_info::small_divisor / 2)) & 1) != 0; + + // Is dist divisible by 10^kappa? + const bool divisible_by_small_divisor = + check_divisibility_and_divide_by_pow10::kappa>(dist); + + // Add dist / 10^kappa to the significand. + ret_value.significand += dist; + + if (!divisible_by_small_divisor) return ret_value; + + // Check z^(f) >= epsilon^(f). + // We have either yi == zi - epsiloni or yi == (zi - epsiloni) - 1, + // where yi == zi - epsiloni if and only if z^(f) >= epsilon^(f). + // Since there are only 2 possibilities, we only need to care about the + // parity. Also, zi and r should have the same parity since the divisor + // is an even number. + const auto y_mul = cache_accessor::compute_mul_parity(two_fc, cache, beta); + + // If z^(f) >= epsilon^(f), we might have a tie when z^(f) == epsilon^(f), + // or equivalently, when y is an integer. + if (y_mul.parity != approx_y_parity) + --ret_value.significand; + else if (y_mul.is_integer & (ret_value.significand % 2 != 0)) + --ret_value.significand; + return ret_value; } +} // namespace dragonbox +} // namespace detail -#endif // FMT_USE_WINDOWS_H +template <> struct formatter { + FMT_CONSTEXPR auto parse(format_parse_context& ctx) + -> format_parse_context::iterator { + return ctx.begin(); + } -FMT_FUNC void format_system_error(internal::buffer& out, int error_code, - string_view message) FMT_NOEXCEPT { - FMT_TRY { - memory_buffer buf; - buf.resize(inline_buffer_size); - for (;;) { - char* system_message = &buf[0]; - int result = - internal::safe_strerror(error_code, system_message, buf.size()); - if (result == 0) { - internal::writer w(out); - w.write(message); - w.write(": "); - w.write(system_message); - return; + auto format(const detail::bigint& n, format_context& ctx) const + -> format_context::iterator { + auto out = ctx.out(); + bool first = true; + for (auto i = n.bigits_.size(); i > 0; --i) { + auto value = n.bigits_[i - 1u]; + if (first) { + out = fmt::format_to(out, FMT_STRING("{:x}"), value); + first = false; + continue; } - if (result != ERANGE) - break; // Can't get error message, report error code instead. - buf.resize(buf.size() * 2); + out = fmt::format_to(out, FMT_STRING("{:08x}"), value); + } + if (n.exp_ > 0) + out = fmt::format_to(out, FMT_STRING("p{}"), + n.exp_ * detail::bigint::bigit_bits); + return out; + } +}; + +FMT_FUNC detail::utf8_to_utf16::utf8_to_utf16(string_view s) { + for_each_codepoint(s, [this](uint32_t cp, string_view) { + if (cp == invalid_code_point) FMT_THROW(std::runtime_error("invalid utf8")); + if (cp <= 0xFFFF) { + buffer_.push_back(static_cast(cp)); + } else { + cp -= 0x10000; + buffer_.push_back(static_cast(0xD800 + (cp >> 10))); + buffer_.push_back(static_cast(0xDC00 + (cp & 0x3FF))); } + return true; + }); + buffer_.push_back(0); +} + +FMT_FUNC void format_system_error(detail::buffer& out, int error_code, + const char* message) noexcept { + FMT_TRY { + auto ec = std::error_code(error_code, std::generic_category()); + detail::write(appender(out), std::system_error(ec, message).what()); + return; } FMT_CATCH(...) {} format_error_code(out, error_code, message); } -FMT_FUNC void internal::error_handler::on_error(const char* message) { - FMT_THROW(format_error(message)); +FMT_FUNC void report_system_error(int error_code, + const char* message) noexcept { + do_report_error(format_system_error, error_code, message); } -FMT_FUNC void report_system_error(int error_code, - fmt::string_view message) FMT_NOEXCEPT { - report_error(format_system_error, error_code, message); +FMT_FUNC auto vformat(string_view fmt, format_args args) -> std::string { + // Don't optimize the "{}" case to keep the binary size small and because it + // can be better optimized in fmt::format anyway. + auto buffer = memory_buffer(); + detail::vformat_to(buffer, fmt, args); + return to_string(buffer); +} + +namespace detail { + +FMT_FUNC void vformat_to(buffer& buf, string_view fmt, format_args args, + locale_ref loc) { + auto out = appender(buf); + if (fmt.size() == 2 && equal2(fmt.data(), "{}")) + return args.get(0).visit(default_arg_formatter{out}); + parse_format_string(fmt, + format_handler<>{parse_context<>(fmt), {out, args, loc}}); +} + +template struct span { + T* data; + size_t size; +}; + +template auto flockfile(F* f) -> decltype(_lock_file(f)) { + _lock_file(f); +} +template auto funlockfile(F* f) -> decltype(_unlock_file(f)) { + _unlock_file(f); +} + +#ifndef getc_unlocked +template auto getc_unlocked(F* f) -> decltype(_fgetc_nolock(f)) { + return _fgetc_nolock(f); +} +#endif + +template +struct has_flockfile : std::false_type {}; + +template +struct has_flockfile()))>> + : std::true_type {}; + +// A FILE wrapper. F is FILE defined as a template parameter to make system API +// detection work. +template class file_base { + public: + F* file_; + + public: + file_base(F* file) : file_(file) {} + operator F*() const { return file_; } + + // Reads a code unit from the stream. + auto get() -> int { + int result = getc_unlocked(file_); + if (result == EOF && ferror(file_) != 0) + FMT_THROW(system_error(errno, FMT_STRING("getc failed"))); + return result; + } + + // Puts the code unit back into the stream buffer. + void unget(char c) { + if (ungetc(c, file_) == EOF) + FMT_THROW(system_error(errno, FMT_STRING("ungetc failed"))); + } + + void flush() { fflush(this->file_); } +}; + +// A FILE wrapper for glibc. +template class glibc_file : public file_base { + private: + enum { + line_buffered = 0x200, // _IO_LINE_BUF + unbuffered = 2 // _IO_UNBUFFERED + }; + + public: + using file_base::file_base; + + auto is_buffered() const -> bool { + return (this->file_->_flags & unbuffered) == 0; + } + + void init_buffer() { + if (this->file_->_IO_write_ptr < this->file_->_IO_write_end) return; + // Force buffer initialization by placing and removing a char in a buffer. + putc_unlocked(0, this->file_); + --this->file_->_IO_write_ptr; + } + + // Returns the file's read buffer. + auto get_read_buffer() const -> span { + auto ptr = this->file_->_IO_read_ptr; + return {ptr, to_unsigned(this->file_->_IO_read_end - ptr)}; + } + + // Returns the file's write buffer. + auto get_write_buffer() const -> span { + auto ptr = this->file_->_IO_write_ptr; + return {ptr, to_unsigned(this->file_->_IO_buf_end - ptr)}; + } + + void advance_write_buffer(size_t size) { this->file_->_IO_write_ptr += size; } + + auto needs_flush() const -> bool { + if ((this->file_->_flags & line_buffered) == 0) return false; + char* end = this->file_->_IO_write_end; + auto size = max_of(this->file_->_IO_write_ptr - end, 0); + return memchr(end, '\n', static_cast(size)); + } + + void flush() { fflush_unlocked(this->file_); } +}; + +// A FILE wrapper for Apple's libc. +template class apple_file : public file_base { + private: + enum { + line_buffered = 1, // __SNBF + unbuffered = 2 // __SLBF + }; + + public: + using file_base::file_base; + + auto is_buffered() const -> bool { + return (this->file_->_flags & unbuffered) == 0; + } + + void init_buffer() { + if (this->file_->_p) return; + // Force buffer initialization by placing and removing a char in a buffer. + if (!FMT_CLANG_ANALYZER) putc_unlocked(0, this->file_); + --this->file_->_p; + ++this->file_->_w; + } + + auto get_read_buffer() const -> span { + return {reinterpret_cast(this->file_->_p), + to_unsigned(this->file_->_r)}; + } + + auto get_write_buffer() const -> span { + return {reinterpret_cast(this->file_->_p), + to_unsigned(this->file_->_bf._base + this->file_->_bf._size - + this->file_->_p)}; + } + + void advance_write_buffer(size_t size) { + this->file_->_p += size; + this->file_->_w -= size; + } + + auto needs_flush() const -> bool { + if ((this->file_->_flags & line_buffered) == 0) return false; + return memchr(this->file_->_p + this->file_->_w, '\n', + to_unsigned(-this->file_->_w)); + } +}; + +// A fallback FILE wrapper. +template class fallback_file : public file_base { + private: + char next_; // The next unconsumed character in the buffer. + bool has_next_ = false; + + public: + using file_base::file_base; + + auto is_buffered() const -> bool { return false; } + auto needs_flush() const -> bool { return false; } + void init_buffer() {} + + auto get_read_buffer() const -> span { + return {&next_, has_next_ ? 1u : 0u}; + } + + auto get_write_buffer() const -> span { return {nullptr, 0}; } + + void advance_write_buffer(size_t) {} + + auto get() -> int { + has_next_ = false; + return file_base::get(); + } + + void unget(char c) { + file_base::unget(c); + next_ = c; + has_next_ = true; + } +}; + +#ifndef FMT_USE_FALLBACK_FILE +# define FMT_USE_FALLBACK_FILE 0 +#endif + +template +auto get_file(F* f, int) -> apple_file { + return f; } +template +inline auto get_file(F* f, int) -> glibc_file { + return f; +} + +inline auto get_file(FILE* f, ...) -> fallback_file { return f; } -#if FMT_USE_WINDOWS_H -FMT_FUNC void report_windows_error(int error_code, - fmt::string_view message) FMT_NOEXCEPT { - report_error(internal::format_windows_error, error_code, message); +using file_ref = decltype(get_file(static_cast(nullptr), 0)); + +template +class file_print_buffer : public buffer { + public: + explicit file_print_buffer(F*) : buffer(nullptr, size_t()) {} +}; + +template +class file_print_buffer::value>> + : public buffer { + private: + file_ref file_; + + static void grow(buffer& base, size_t) { + auto& self = static_cast(base); + self.file_.advance_write_buffer(self.size()); + if (self.file_.get_write_buffer().size == 0) self.file_.flush(); + auto buf = self.file_.get_write_buffer(); + FMT_ASSERT(buf.size > 0, ""); + self.set(buf.data, buf.size); + self.clear(); + } + + public: + explicit file_print_buffer(F* f) : buffer(grow, size_t()), file_(f) { + flockfile(f); + file_.init_buffer(); + auto buf = file_.get_write_buffer(); + set(buf.data, buf.size); + } + ~file_print_buffer() { + file_.advance_write_buffer(size()); + bool flush = file_.needs_flush(); + F* f = file_; // Make funlockfile depend on the template parameter F + funlockfile(f); // for the system API detection to work. + if (flush) fflush(file_); + } +}; + +#if !defined(_WIN32) || defined(FMT_USE_WRITE_CONSOLE) +FMT_FUNC auto write_console(int, string_view) -> bool { return false; } +#else +using dword = conditional_t; +extern "C" __declspec(dllimport) int __stdcall WriteConsoleW( // + void*, const void*, dword, dword*, void*); + +FMT_FUNC bool write_console(int fd, string_view text) { + auto u16 = utf8_to_utf16(text); + return WriteConsoleW(reinterpret_cast(_get_osfhandle(fd)), u16.c_str(), + static_cast(u16.size()), nullptr, nullptr) != 0; } #endif -FMT_FUNC void vprint(std::FILE* f, string_view format_str, format_args args) { - memory_buffer buffer; - internal::vformat_to(buffer, format_str, - basic_format_args>(args)); - internal::fwrite_fully(buffer.data(), 1, buffer.size(), f); +#ifdef _WIN32 +// Print assuming legacy (non-Unicode) encoding. +FMT_FUNC void vprint_mojibake(std::FILE* f, string_view fmt, format_args args, + bool newline) { + auto buffer = memory_buffer(); + detail::vformat_to(buffer, fmt, args); + if (newline) buffer.push_back('\n'); + fwrite_all(buffer.data(), buffer.size(), f); } +#endif -FMT_FUNC void vprint(std::FILE* f, wstring_view format_str, wformat_args args) { - wmemory_buffer buffer; - internal::vformat_to(buffer, format_str, args); - buffer.push_back(L'\0'); - if (std::fputws(buffer.data(), f) == -1) { - FMT_THROW(system_error(errno, "cannot write to file")); +FMT_FUNC void print(std::FILE* f, string_view text) { +#if defined(_WIN32) && !defined(FMT_USE_WRITE_CONSOLE) + int fd = _fileno(f); + if (_isatty(fd)) { + std::fflush(f); + if (write_console(fd, text)) return; } +#endif + fwrite_all(text.data(), text.size(), f); } +} // namespace detail -FMT_FUNC void vprint(string_view format_str, format_args args) { - vprint(stdout, format_str, args); +FMT_FUNC void vprint_buffered(std::FILE* f, string_view fmt, format_args args) { + auto buffer = memory_buffer(); + detail::vformat_to(buffer, fmt, args); + detail::print(f, {buffer.data(), buffer.size()}); } -FMT_FUNC void vprint(wstring_view format_str, wformat_args args) { - vprint(stdout, format_str, args); +FMT_FUNC void vprint(std::FILE* f, string_view fmt, format_args args) { + if (!detail::file_ref(f).is_buffered() || !detail::has_flockfile<>()) + return vprint_buffered(f, fmt, args); + auto&& buffer = detail::file_print_buffer<>(f); + return detail::vformat_to(buffer, fmt, args); } -FMT_END_NAMESPACE +FMT_FUNC void vprintln(std::FILE* f, string_view fmt, format_args args) { + auto buffer = memory_buffer(); + detail::vformat_to(buffer, fmt, args); + buffer.push_back('\n'); + detail::print(f, {buffer.data(), buffer.size()}); +} -#ifdef _MSC_VER -# pragma warning(pop) -#endif +FMT_FUNC void vprint(string_view fmt, format_args args) { + vprint(stdout, fmt, args); +} + +namespace detail { + +struct singleton { + unsigned char upper; + unsigned char lower_count; +}; + +inline auto is_printable(uint16_t x, const singleton* singletons, + size_t singletons_size, + const unsigned char* singleton_lowers, + const unsigned char* normal, size_t normal_size) + -> bool { + auto upper = x >> 8; + auto lower_start = 0; + for (size_t i = 0; i < singletons_size; ++i) { + auto s = singletons[i]; + auto lower_end = lower_start + s.lower_count; + if (upper < s.upper) break; + if (upper == s.upper) { + for (auto j = lower_start; j < lower_end; ++j) { + if (singleton_lowers[j] == (x & 0xff)) return false; + } + } + lower_start = lower_end; + } + + auto xsigned = static_cast(x); + auto current = true; + for (size_t i = 0; i < normal_size; ++i) { + auto v = static_cast(normal[i]); + auto len = (v & 0x80) != 0 ? (v & 0x7f) << 8 | normal[++i] : v; + xsigned -= len; + if (xsigned < 0) break; + current = !current; + } + return current; +} + +// This code is generated by support/printable.py. +FMT_FUNC auto is_printable(uint32_t cp) -> bool { + static constexpr singleton singletons0[] = { + {0x00, 1}, {0x03, 5}, {0x05, 6}, {0x06, 3}, {0x07, 6}, {0x08, 8}, + {0x09, 17}, {0x0a, 28}, {0x0b, 25}, {0x0c, 20}, {0x0d, 16}, {0x0e, 13}, + {0x0f, 4}, {0x10, 3}, {0x12, 18}, {0x13, 9}, {0x16, 1}, {0x17, 5}, + {0x18, 2}, {0x19, 3}, {0x1a, 7}, {0x1c, 2}, {0x1d, 1}, {0x1f, 22}, + {0x20, 3}, {0x2b, 3}, {0x2c, 2}, {0x2d, 11}, {0x2e, 1}, {0x30, 3}, + {0x31, 2}, {0x32, 1}, {0xa7, 2}, {0xa9, 2}, {0xaa, 4}, {0xab, 8}, + {0xfa, 2}, {0xfb, 5}, {0xfd, 4}, {0xfe, 3}, {0xff, 9}, + }; + static constexpr unsigned char singletons0_lower[] = { + 0xad, 0x78, 0x79, 0x8b, 0x8d, 0xa2, 0x30, 0x57, 0x58, 0x8b, 0x8c, 0x90, + 0x1c, 0x1d, 0xdd, 0x0e, 0x0f, 0x4b, 0x4c, 0xfb, 0xfc, 0x2e, 0x2f, 0x3f, + 0x5c, 0x5d, 0x5f, 0xb5, 0xe2, 0x84, 0x8d, 0x8e, 0x91, 0x92, 0xa9, 0xb1, + 0xba, 0xbb, 0xc5, 0xc6, 0xc9, 0xca, 0xde, 0xe4, 0xe5, 0xff, 0x00, 0x04, + 0x11, 0x12, 0x29, 0x31, 0x34, 0x37, 0x3a, 0x3b, 0x3d, 0x49, 0x4a, 0x5d, + 0x84, 0x8e, 0x92, 0xa9, 0xb1, 0xb4, 0xba, 0xbb, 0xc6, 0xca, 0xce, 0xcf, + 0xe4, 0xe5, 0x00, 0x04, 0x0d, 0x0e, 0x11, 0x12, 0x29, 0x31, 0x34, 0x3a, + 0x3b, 0x45, 0x46, 0x49, 0x4a, 0x5e, 0x64, 0x65, 0x84, 0x91, 0x9b, 0x9d, + 0xc9, 0xce, 0xcf, 0x0d, 0x11, 0x29, 0x45, 0x49, 0x57, 0x64, 0x65, 0x8d, + 0x91, 0xa9, 0xb4, 0xba, 0xbb, 0xc5, 0xc9, 0xdf, 0xe4, 0xe5, 0xf0, 0x0d, + 0x11, 0x45, 0x49, 0x64, 0x65, 0x80, 0x84, 0xb2, 0xbc, 0xbe, 0xbf, 0xd5, + 0xd7, 0xf0, 0xf1, 0x83, 0x85, 0x8b, 0xa4, 0xa6, 0xbe, 0xbf, 0xc5, 0xc7, + 0xce, 0xcf, 0xda, 0xdb, 0x48, 0x98, 0xbd, 0xcd, 0xc6, 0xce, 0xcf, 0x49, + 0x4e, 0x4f, 0x57, 0x59, 0x5e, 0x5f, 0x89, 0x8e, 0x8f, 0xb1, 0xb6, 0xb7, + 0xbf, 0xc1, 0xc6, 0xc7, 0xd7, 0x11, 0x16, 0x17, 0x5b, 0x5c, 0xf6, 0xf7, + 0xfe, 0xff, 0x80, 0x0d, 0x6d, 0x71, 0xde, 0xdf, 0x0e, 0x0f, 0x1f, 0x6e, + 0x6f, 0x1c, 0x1d, 0x5f, 0x7d, 0x7e, 0xae, 0xaf, 0xbb, 0xbc, 0xfa, 0x16, + 0x17, 0x1e, 0x1f, 0x46, 0x47, 0x4e, 0x4f, 0x58, 0x5a, 0x5c, 0x5e, 0x7e, + 0x7f, 0xb5, 0xc5, 0xd4, 0xd5, 0xdc, 0xf0, 0xf1, 0xf5, 0x72, 0x73, 0x8f, + 0x74, 0x75, 0x96, 0x2f, 0x5f, 0x26, 0x2e, 0x2f, 0xa7, 0xaf, 0xb7, 0xbf, + 0xc7, 0xcf, 0xd7, 0xdf, 0x9a, 0x40, 0x97, 0x98, 0x30, 0x8f, 0x1f, 0xc0, + 0xc1, 0xce, 0xff, 0x4e, 0x4f, 0x5a, 0x5b, 0x07, 0x08, 0x0f, 0x10, 0x27, + 0x2f, 0xee, 0xef, 0x6e, 0x6f, 0x37, 0x3d, 0x3f, 0x42, 0x45, 0x90, 0x91, + 0xfe, 0xff, 0x53, 0x67, 0x75, 0xc8, 0xc9, 0xd0, 0xd1, 0xd8, 0xd9, 0xe7, + 0xfe, 0xff, + }; + static constexpr singleton singletons1[] = { + {0x00, 6}, {0x01, 1}, {0x03, 1}, {0x04, 2}, {0x08, 8}, {0x09, 2}, + {0x0a, 5}, {0x0b, 2}, {0x0e, 4}, {0x10, 1}, {0x11, 2}, {0x12, 5}, + {0x13, 17}, {0x14, 1}, {0x15, 2}, {0x17, 2}, {0x19, 13}, {0x1c, 5}, + {0x1d, 8}, {0x24, 1}, {0x6a, 3}, {0x6b, 2}, {0xbc, 2}, {0xd1, 2}, + {0xd4, 12}, {0xd5, 9}, {0xd6, 2}, {0xd7, 2}, {0xda, 1}, {0xe0, 5}, + {0xe1, 2}, {0xe8, 2}, {0xee, 32}, {0xf0, 4}, {0xf8, 2}, {0xf9, 2}, + {0xfa, 2}, {0xfb, 1}, + }; + static constexpr unsigned char singletons1_lower[] = { + 0x0c, 0x27, 0x3b, 0x3e, 0x4e, 0x4f, 0x8f, 0x9e, 0x9e, 0x9f, 0x06, 0x07, + 0x09, 0x36, 0x3d, 0x3e, 0x56, 0xf3, 0xd0, 0xd1, 0x04, 0x14, 0x18, 0x36, + 0x37, 0x56, 0x57, 0x7f, 0xaa, 0xae, 0xaf, 0xbd, 0x35, 0xe0, 0x12, 0x87, + 0x89, 0x8e, 0x9e, 0x04, 0x0d, 0x0e, 0x11, 0x12, 0x29, 0x31, 0x34, 0x3a, + 0x45, 0x46, 0x49, 0x4a, 0x4e, 0x4f, 0x64, 0x65, 0x5c, 0xb6, 0xb7, 0x1b, + 0x1c, 0x07, 0x08, 0x0a, 0x0b, 0x14, 0x17, 0x36, 0x39, 0x3a, 0xa8, 0xa9, + 0xd8, 0xd9, 0x09, 0x37, 0x90, 0x91, 0xa8, 0x07, 0x0a, 0x3b, 0x3e, 0x66, + 0x69, 0x8f, 0x92, 0x6f, 0x5f, 0xee, 0xef, 0x5a, 0x62, 0x9a, 0x9b, 0x27, + 0x28, 0x55, 0x9d, 0xa0, 0xa1, 0xa3, 0xa4, 0xa7, 0xa8, 0xad, 0xba, 0xbc, + 0xc4, 0x06, 0x0b, 0x0c, 0x15, 0x1d, 0x3a, 0x3f, 0x45, 0x51, 0xa6, 0xa7, + 0xcc, 0xcd, 0xa0, 0x07, 0x19, 0x1a, 0x22, 0x25, 0x3e, 0x3f, 0xc5, 0xc6, + 0x04, 0x20, 0x23, 0x25, 0x26, 0x28, 0x33, 0x38, 0x3a, 0x48, 0x4a, 0x4c, + 0x50, 0x53, 0x55, 0x56, 0x58, 0x5a, 0x5c, 0x5e, 0x60, 0x63, 0x65, 0x66, + 0x6b, 0x73, 0x78, 0x7d, 0x7f, 0x8a, 0xa4, 0xaa, 0xaf, 0xb0, 0xc0, 0xd0, + 0xae, 0xaf, 0x79, 0xcc, 0x6e, 0x6f, 0x93, + }; + static constexpr unsigned char normal0[] = { + 0x00, 0x20, 0x5f, 0x22, 0x82, 0xdf, 0x04, 0x82, 0x44, 0x08, 0x1b, 0x04, + 0x06, 0x11, 0x81, 0xac, 0x0e, 0x80, 0xab, 0x35, 0x28, 0x0b, 0x80, 0xe0, + 0x03, 0x19, 0x08, 0x01, 0x04, 0x2f, 0x04, 0x34, 0x04, 0x07, 0x03, 0x01, + 0x07, 0x06, 0x07, 0x11, 0x0a, 0x50, 0x0f, 0x12, 0x07, 0x55, 0x07, 0x03, + 0x04, 0x1c, 0x0a, 0x09, 0x03, 0x08, 0x03, 0x07, 0x03, 0x02, 0x03, 0x03, + 0x03, 0x0c, 0x04, 0x05, 0x03, 0x0b, 0x06, 0x01, 0x0e, 0x15, 0x05, 0x3a, + 0x03, 0x11, 0x07, 0x06, 0x05, 0x10, 0x07, 0x57, 0x07, 0x02, 0x07, 0x15, + 0x0d, 0x50, 0x04, 0x43, 0x03, 0x2d, 0x03, 0x01, 0x04, 0x11, 0x06, 0x0f, + 0x0c, 0x3a, 0x04, 0x1d, 0x25, 0x5f, 0x20, 0x6d, 0x04, 0x6a, 0x25, 0x80, + 0xc8, 0x05, 0x82, 0xb0, 0x03, 0x1a, 0x06, 0x82, 0xfd, 0x03, 0x59, 0x07, + 0x15, 0x0b, 0x17, 0x09, 0x14, 0x0c, 0x14, 0x0c, 0x6a, 0x06, 0x0a, 0x06, + 0x1a, 0x06, 0x59, 0x07, 0x2b, 0x05, 0x46, 0x0a, 0x2c, 0x04, 0x0c, 0x04, + 0x01, 0x03, 0x31, 0x0b, 0x2c, 0x04, 0x1a, 0x06, 0x0b, 0x03, 0x80, 0xac, + 0x06, 0x0a, 0x06, 0x21, 0x3f, 0x4c, 0x04, 0x2d, 0x03, 0x74, 0x08, 0x3c, + 0x03, 0x0f, 0x03, 0x3c, 0x07, 0x38, 0x08, 0x2b, 0x05, 0x82, 0xff, 0x11, + 0x18, 0x08, 0x2f, 0x11, 0x2d, 0x03, 0x20, 0x10, 0x21, 0x0f, 0x80, 0x8c, + 0x04, 0x82, 0x97, 0x19, 0x0b, 0x15, 0x88, 0x94, 0x05, 0x2f, 0x05, 0x3b, + 0x07, 0x02, 0x0e, 0x18, 0x09, 0x80, 0xb3, 0x2d, 0x74, 0x0c, 0x80, 0xd6, + 0x1a, 0x0c, 0x05, 0x80, 0xff, 0x05, 0x80, 0xdf, 0x0c, 0xee, 0x0d, 0x03, + 0x84, 0x8d, 0x03, 0x37, 0x09, 0x81, 0x5c, 0x14, 0x80, 0xb8, 0x08, 0x80, + 0xcb, 0x2a, 0x38, 0x03, 0x0a, 0x06, 0x38, 0x08, 0x46, 0x08, 0x0c, 0x06, + 0x74, 0x0b, 0x1e, 0x03, 0x5a, 0x04, 0x59, 0x09, 0x80, 0x83, 0x18, 0x1c, + 0x0a, 0x16, 0x09, 0x4c, 0x04, 0x80, 0x8a, 0x06, 0xab, 0xa4, 0x0c, 0x17, + 0x04, 0x31, 0xa1, 0x04, 0x81, 0xda, 0x26, 0x07, 0x0c, 0x05, 0x05, 0x80, + 0xa5, 0x11, 0x81, 0x6d, 0x10, 0x78, 0x28, 0x2a, 0x06, 0x4c, 0x04, 0x80, + 0x8d, 0x04, 0x80, 0xbe, 0x03, 0x1b, 0x03, 0x0f, 0x0d, + }; + static constexpr unsigned char normal1[] = { + 0x5e, 0x22, 0x7b, 0x05, 0x03, 0x04, 0x2d, 0x03, 0x66, 0x03, 0x01, 0x2f, + 0x2e, 0x80, 0x82, 0x1d, 0x03, 0x31, 0x0f, 0x1c, 0x04, 0x24, 0x09, 0x1e, + 0x05, 0x2b, 0x05, 0x44, 0x04, 0x0e, 0x2a, 0x80, 0xaa, 0x06, 0x24, 0x04, + 0x24, 0x04, 0x28, 0x08, 0x34, 0x0b, 0x01, 0x80, 0x90, 0x81, 0x37, 0x09, + 0x16, 0x0a, 0x08, 0x80, 0x98, 0x39, 0x03, 0x63, 0x08, 0x09, 0x30, 0x16, + 0x05, 0x21, 0x03, 0x1b, 0x05, 0x01, 0x40, 0x38, 0x04, 0x4b, 0x05, 0x2f, + 0x04, 0x0a, 0x07, 0x09, 0x07, 0x40, 0x20, 0x27, 0x04, 0x0c, 0x09, 0x36, + 0x03, 0x3a, 0x05, 0x1a, 0x07, 0x04, 0x0c, 0x07, 0x50, 0x49, 0x37, 0x33, + 0x0d, 0x33, 0x07, 0x2e, 0x08, 0x0a, 0x81, 0x26, 0x52, 0x4e, 0x28, 0x08, + 0x2a, 0x56, 0x1c, 0x14, 0x17, 0x09, 0x4e, 0x04, 0x1e, 0x0f, 0x43, 0x0e, + 0x19, 0x07, 0x0a, 0x06, 0x48, 0x08, 0x27, 0x09, 0x75, 0x0b, 0x3f, 0x41, + 0x2a, 0x06, 0x3b, 0x05, 0x0a, 0x06, 0x51, 0x06, 0x01, 0x05, 0x10, 0x03, + 0x05, 0x80, 0x8b, 0x62, 0x1e, 0x48, 0x08, 0x0a, 0x80, 0xa6, 0x5e, 0x22, + 0x45, 0x0b, 0x0a, 0x06, 0x0d, 0x13, 0x39, 0x07, 0x0a, 0x36, 0x2c, 0x04, + 0x10, 0x80, 0xc0, 0x3c, 0x64, 0x53, 0x0c, 0x48, 0x09, 0x0a, 0x46, 0x45, + 0x1b, 0x48, 0x08, 0x53, 0x1d, 0x39, 0x81, 0x07, 0x46, 0x0a, 0x1d, 0x03, + 0x47, 0x49, 0x37, 0x03, 0x0e, 0x08, 0x0a, 0x06, 0x39, 0x07, 0x0a, 0x81, + 0x36, 0x19, 0x80, 0xb7, 0x01, 0x0f, 0x32, 0x0d, 0x83, 0x9b, 0x66, 0x75, + 0x0b, 0x80, 0xc4, 0x8a, 0xbc, 0x84, 0x2f, 0x8f, 0xd1, 0x82, 0x47, 0xa1, + 0xb9, 0x82, 0x39, 0x07, 0x2a, 0x04, 0x02, 0x60, 0x26, 0x0a, 0x46, 0x0a, + 0x28, 0x05, 0x13, 0x82, 0xb0, 0x5b, 0x65, 0x4b, 0x04, 0x39, 0x07, 0x11, + 0x40, 0x05, 0x0b, 0x02, 0x0e, 0x97, 0xf8, 0x08, 0x84, 0xd6, 0x2a, 0x09, + 0xa2, 0xf7, 0x81, 0x1f, 0x31, 0x03, 0x11, 0x04, 0x08, 0x81, 0x8c, 0x89, + 0x04, 0x6b, 0x05, 0x0d, 0x03, 0x09, 0x07, 0x10, 0x93, 0x60, 0x80, 0xf6, + 0x0a, 0x73, 0x08, 0x6e, 0x17, 0x46, 0x80, 0x9a, 0x14, 0x0c, 0x57, 0x09, + 0x19, 0x80, 0x87, 0x81, 0x47, 0x03, 0x85, 0x42, 0x0f, 0x15, 0x85, 0x50, + 0x2b, 0x80, 0xd5, 0x2d, 0x03, 0x1a, 0x04, 0x02, 0x81, 0x70, 0x3a, 0x05, + 0x01, 0x85, 0x00, 0x80, 0xd7, 0x29, 0x4c, 0x04, 0x0a, 0x04, 0x02, 0x83, + 0x11, 0x44, 0x4c, 0x3d, 0x80, 0xc2, 0x3c, 0x06, 0x01, 0x04, 0x55, 0x05, + 0x1b, 0x34, 0x02, 0x81, 0x0e, 0x2c, 0x04, 0x64, 0x0c, 0x56, 0x0a, 0x80, + 0xae, 0x38, 0x1d, 0x0d, 0x2c, 0x04, 0x09, 0x07, 0x02, 0x0e, 0x06, 0x80, + 0x9a, 0x83, 0xd8, 0x08, 0x0d, 0x03, 0x0d, 0x03, 0x74, 0x0c, 0x59, 0x07, + 0x0c, 0x14, 0x0c, 0x04, 0x38, 0x08, 0x0a, 0x06, 0x28, 0x08, 0x22, 0x4e, + 0x81, 0x54, 0x0c, 0x15, 0x03, 0x03, 0x05, 0x07, 0x09, 0x19, 0x07, 0x07, + 0x09, 0x03, 0x0d, 0x07, 0x29, 0x80, 0xcb, 0x25, 0x0a, 0x84, 0x06, + }; + auto lower = static_cast(cp); + if (cp < 0x10000) { + return is_printable(lower, singletons0, + sizeof(singletons0) / sizeof(*singletons0), + singletons0_lower, normal0, sizeof(normal0)); + } + if (cp < 0x20000) { + return is_printable(lower, singletons1, + sizeof(singletons1) / sizeof(*singletons1), + singletons1_lower, normal1, sizeof(normal1)); + } + if (0x2a6de <= cp && cp < 0x2a700) return false; + if (0x2b735 <= cp && cp < 0x2b740) return false; + if (0x2b81e <= cp && cp < 0x2b820) return false; + if (0x2cea2 <= cp && cp < 0x2ceb0) return false; + if (0x2ebe1 <= cp && cp < 0x2f800) return false; + if (0x2fa1e <= cp && cp < 0x30000) return false; + if (0x3134b <= cp && cp < 0xe0100) return false; + if (0xe01f0 <= cp && cp < 0x110000) return false; + return cp < 0x110000; +} + +} // namespace detail + +FMT_END_NAMESPACE #endif // FMT_FORMAT_INL_H_ diff --git a/Source/ThirdParty/spdlog/fmt/bundled/format.h b/Source/ThirdParty/spdlog/fmt/bundled/format.h index f27996d31..4a6530072 100644 --- a/Source/ThirdParty/spdlog/fmt/bundled/format.h +++ b/Source/ThirdParty/spdlog/fmt/bundled/format.h @@ -1,687 +1,1056 @@ /* - Formatting library for C++ - - Copyright (c) 2012 - present, Victor Zverovich - - Permission is hereby granted, free of charge, to any person obtaining - a copy of this software and associated documentation files (the - "Software"), to deal in the Software without restriction, including - without limitation the rights to use, copy, modify, merge, publish, - distribute, sublicense, and/or sell copies of the Software, and to - permit persons to whom the Software is furnished to do so, subject to - the following conditions: - - The above copyright notice and this permission notice shall be - included in all copies or substantial portions of the Software. - - THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE - LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION - OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION - WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - - --- Optional exception to the license --- - - As an exception, if, as a result of your compiling your source code, portions - of this Software are embedded into a machine-executable object form of such - source code, you may redistribute such embedded portions in such object form - without including the above copyright and permission notices. + Formatting library for C++ + + Copyright (c) 2012 - present, Victor Zverovich + + Permission is hereby granted, free of charge, to any person obtaining + a copy of this software and associated documentation files (the + "Software"), to deal in the Software without restriction, including + without limitation the rights to use, copy, modify, merge, publish, + distribute, sublicense, and/or sell copies of the Software, and to + permit persons to whom the Software is furnished to do so, subject to + the following conditions: + + The above copyright notice and this permission notice shall be + included in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE + LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + + --- Optional exception to the license --- + + As an exception, if, as a result of your compiling your source code, portions + of this Software are embedded into a machine-executable object form of such + source code, you may redistribute such embedded portions in such object form + without including the above copyright and permission notices. */ #ifndef FMT_FORMAT_H_ #define FMT_FORMAT_H_ -#include -#include -#include -#include -#include -#include -#include -#include -#include +#ifndef _LIBCPP_REMOVE_TRANSITIVE_INCLUDES +# define _LIBCPP_REMOVE_TRANSITIVE_INCLUDES +# define FMT_REMOVE_TRANSITIVE_INCLUDES +#endif + +#include "base.h" + +// libc++ supports string_view in pre-c++17. +#if FMT_HAS_INCLUDE() && \ + (FMT_CPLUSPLUS >= 201703L || defined(_LIBCPP_VERSION)) +# define FMT_USE_STRING_VIEW +#endif + +#ifndef FMT_MODULE +# include // malloc, free + +# include // std::signbit +# include // std::byte +# include // uint32_t +# include // std::memcpy +# include // std::numeric_limits +# include // std::bad_alloc +# if defined(__GLIBCXX__) && !defined(_GLIBCXX_USE_DUAL_ABI) +// Workaround for pre gcc 5 libstdc++. +# include // std::allocator_traits +# endif +# include // std::runtime_error +# include // std::string +# include // std::system_error + +// Check FMT_CPLUSPLUS to avoid a warning in MSVC. +# if FMT_HAS_INCLUDE() && FMT_CPLUSPLUS > 201703L +# include // std::bit_cast +# endif -#include "core.h" +# if defined(FMT_USE_STRING_VIEW) +# include +# endif -#ifdef __clang__ -# define FMT_CLANG_VERSION (__clang_major__ * 100 + __clang_minor__) +# if FMT_MSC_VERSION +# include // _BitScanReverse[64], _umul128 +# endif +#endif // FMT_MODULE + +#if defined(FMT_USE_NONTYPE_TEMPLATE_ARGS) +// Use the provided definition. +#elif defined(__NVCOMPILER) +# define FMT_USE_NONTYPE_TEMPLATE_ARGS 0 +#elif FMT_GCC_VERSION >= 903 && FMT_CPLUSPLUS >= 201709L +# define FMT_USE_NONTYPE_TEMPLATE_ARGS 1 +#elif defined(__cpp_nontype_template_args) && \ + __cpp_nontype_template_args >= 201911L +# define FMT_USE_NONTYPE_TEMPLATE_ARGS 1 +#elif FMT_CLANG_VERSION >= 1200 && FMT_CPLUSPLUS >= 202002L +# define FMT_USE_NONTYPE_TEMPLATE_ARGS 1 #else -# define FMT_CLANG_VERSION 0 +# define FMT_USE_NONTYPE_TEMPLATE_ARGS 0 #endif -#ifdef __INTEL_COMPILER -# define FMT_ICC_VERSION __INTEL_COMPILER -#elif defined(__ICL) -# define FMT_ICC_VERSION __ICL +#if defined __cpp_inline_variables && __cpp_inline_variables >= 201606L +# define FMT_INLINE_VARIABLE inline #else -# define FMT_ICC_VERSION 0 +# define FMT_INLINE_VARIABLE #endif -#ifdef __NVCC__ -# define FMT_CUDA_VERSION (__CUDACC_VER_MAJOR__ * 100 + __CUDACC_VER_MINOR__) +// Check if RTTI is disabled. +#ifdef FMT_USE_RTTI +// Use the provided definition. +#elif defined(__GXX_RTTI) || FMT_HAS_FEATURE(cxx_rtti) || defined(_CPPRTTI) || \ + defined(__INTEL_RTTI__) || defined(__RTTI) +// __RTTI is for EDG compilers. _CPPRTTI is for MSVC. +# define FMT_USE_RTTI 1 #else -# define FMT_CUDA_VERSION 0 +# define FMT_USE_RTTI 0 #endif -#ifdef __has_builtin -# define FMT_HAS_BUILTIN(x) __has_builtin(x) +// Visibility when compiled as a shared library/object. +#if defined(FMT_LIB_EXPORT) || defined(FMT_SHARED) +# define FMT_SO_VISIBILITY(value) FMT_VISIBILITY(value) #else -# define FMT_HAS_BUILTIN(x) 0 +# define FMT_SO_VISIBILITY(value) #endif -#ifndef FMT_THROW -# if FMT_EXCEPTIONS -# if FMT_MSC_VER -FMT_BEGIN_NAMESPACE -namespace internal { -template inline void do_throw(const Exception& x) { - // Silence unreachable code warnings in MSVC because these are nearly - // impossible to fix in a generic code. - volatile bool b = true; - if (b) throw x; -} -} // namespace internal -FMT_END_NAMESPACE -# define FMT_THROW(x) fmt::internal::do_throw(x) +#if FMT_GCC_VERSION || FMT_CLANG_VERSION +# define FMT_NOINLINE __attribute__((noinline)) +#else +# define FMT_NOINLINE +#endif + +#ifdef FMT_DEPRECATED +// Use the provided definition. +#elif FMT_HAS_CPP14_ATTRIBUTE(deprecated) +# define FMT_DEPRECATED [[deprecated]] +#else +# define FMT_DEPRECATED /* deprecated */ +#endif + +// Detect constexpr std::string. +#if !FMT_USE_CONSTEVAL +# define FMT_USE_CONSTEXPR_STRING 0 +#elif defined(__cpp_lib_constexpr_string) && \ + __cpp_lib_constexpr_string >= 201907L +# if FMT_CLANG_VERSION && FMT_GLIBCXX_RELEASE +// clang + libstdc++ are able to work only starting with gcc13.3 +// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113294 +# if FMT_GLIBCXX_RELEASE < 13 +# define FMT_USE_CONSTEXPR_STRING 0 +# elif FMT_GLIBCXX_RELEASE == 13 && __GLIBCXX__ < 20240521 +# define FMT_USE_CONSTEXPR_STRING 0 # else -# define FMT_THROW(x) throw x +# define FMT_USE_CONSTEXPR_STRING 1 # endif # else -# define FMT_THROW(x) \ - do { \ - static_cast(sizeof(x)); \ - assert(false); \ - } while (false) +# define FMT_USE_CONSTEXPR_STRING 1 # endif +#else +# define FMT_USE_CONSTEXPR_STRING 0 #endif - -#ifndef FMT_USE_USER_DEFINED_LITERALS -// For Intel and NVIDIA compilers both they and the system gcc/msc support UDLs. -# if (FMT_HAS_FEATURE(cxx_user_literals) || FMT_GCC_VERSION >= 407 || \ - FMT_MSC_VER >= 1900) && \ - (!(FMT_ICC_VERSION || FMT_CUDA_VERSION) || FMT_ICC_VERSION >= 1500 || \ - FMT_CUDA_VERSION >= 700) -# define FMT_USE_USER_DEFINED_LITERALS 1 -# else -# define FMT_USE_USER_DEFINED_LITERALS 0 -# endif +#if FMT_USE_CONSTEXPR_STRING +# define FMT_CONSTEXPR_STRING constexpr +#else +# define FMT_CONSTEXPR_STRING #endif -#ifndef FMT_USE_UDL_TEMPLATE -// EDG front end based compilers (icc, nvcc) do not support UDL templates yet -// and GCC 9 warns about them. -# if FMT_USE_USER_DEFINED_LITERALS && FMT_ICC_VERSION == 0 && \ - FMT_CUDA_VERSION == 0 && \ - ((FMT_GCC_VERSION >= 600 && FMT_GCC_VERSION <= 900 && \ - __cplusplus >= 201402L) || \ - FMT_CLANG_VERSION >= 304) -# define FMT_USE_UDL_TEMPLATE 1 -# else -# define FMT_USE_UDL_TEMPLATE 0 -# endif +// GCC 4.9 doesn't support qualified names in specializations. +namespace std { +template struct iterator_traits> { + using iterator_category = output_iterator_tag; + using value_type = T; + using difference_type = + decltype(static_cast(nullptr) - static_cast(nullptr)); + using pointer = void; + using reference = void; +}; +} // namespace std + +#ifdef FMT_THROW +// Use the provided definition. +#elif FMT_USE_EXCEPTIONS +# define FMT_THROW(x) throw x +#else +# define FMT_THROW(x) ::fmt::assert_fail(__FILE__, __LINE__, (x).what()) #endif -#ifdef FMT_USE_INT128 -// Do nothing. -#elif defined(__SIZEOF_INT128__) -# define FMT_USE_INT128 1 +#ifdef __clang_analyzer__ +# define FMT_CLANG_ANALYZER 1 #else -# define FMT_USE_INT128 0 +# define FMT_CLANG_ANALYZER 0 #endif -// __builtin_clz is broken in clang with Microsoft CodeGen: -// https://github.com/fmtlib/fmt/issues/519 -#if (FMT_GCC_VERSION || FMT_HAS_BUILTIN(__builtin_clz)) && !FMT_MSC_VER -# define FMT_BUILTIN_CLZ(n) __builtin_clz(n) +// Defining FMT_REDUCE_INT_INSTANTIATIONS to 1, will reduce the number of +// integer formatter template instantiations to just one by only using the +// largest integer type. This results in a reduction in binary size but will +// cause a decrease in integer formatting performance. +#if !defined(FMT_REDUCE_INT_INSTANTIATIONS) +# define FMT_REDUCE_INT_INSTANTIATIONS 0 #endif -#if (FMT_GCC_VERSION || FMT_HAS_BUILTIN(__builtin_clzll)) && !FMT_MSC_VER -# define FMT_BUILTIN_CLZLL(n) __builtin_clzll(n) + +FMT_BEGIN_NAMESPACE + +template +struct is_contiguous> + : std::true_type {}; + +namespace detail { + +// __builtin_clz is broken in clang with Microsoft codegen: +// https://github.com/fmtlib/fmt/issues/519. +#if !FMT_MSC_VERSION +# if FMT_HAS_BUILTIN(__builtin_clz) || FMT_GCC_VERSION || FMT_ICC_VERSION +# define FMT_BUILTIN_CLZ(n) __builtin_clz(n) +# endif +# if FMT_HAS_BUILTIN(__builtin_clzll) || FMT_GCC_VERSION || FMT_ICC_VERSION +# define FMT_BUILTIN_CLZLL(n) __builtin_clzll(n) +# endif #endif -// Some compilers masquerade as both MSVC and GCC-likes or otherwise support +// Some compilers masquerade as both MSVC and GCC but otherwise support // __builtin_clz and __builtin_clzll, so only define FMT_BUILTIN_CLZ using the // MSVC intrinsics if the clz and clzll builtins are not available. -#if FMT_MSC_VER && !defined(FMT_BUILTIN_CLZLL) && !defined(_MANAGED) -# include // _BitScanReverse, _BitScanReverse64 - -FMT_BEGIN_NAMESPACE -namespace internal { +#if FMT_MSC_VERSION && !defined(FMT_BUILTIN_CLZLL) // Avoid Clang with Microsoft CodeGen's -Wunknown-pragmas warning. # ifndef __clang__ # pragma intrinsic(_BitScanReverse) +# ifdef _WIN64 +# pragma intrinsic(_BitScanReverse64) +# endif # endif -inline uint32_t clz(uint32_t x) { + +inline auto clz(uint32_t x) -> int { + FMT_ASSERT(x != 0, ""); + FMT_MSC_WARNING(suppress : 6102) // Suppress a bogus static analysis warning. unsigned long r = 0; _BitScanReverse(&r, x); - - assert(x != 0); - // Static analysis complains about using uninitialized data - // "r", but the only way that can happen is if "x" is 0, - // which the callers guarantee to not happen. -# pragma warning(suppress : 6102) - return 31 - r; + return 31 ^ static_cast(r); } -# define FMT_BUILTIN_CLZ(n) fmt::internal::clz(n) - -# if defined(_WIN64) && !defined(__clang__) -# pragma intrinsic(_BitScanReverse64) -# endif +# define FMT_BUILTIN_CLZ(n) detail::clz(n) -inline uint32_t clzll(uint64_t x) { +inline auto clzll(uint64_t x) -> int { + FMT_ASSERT(x != 0, ""); + FMT_MSC_WARNING(suppress : 6102) // Suppress a bogus static analysis warning. unsigned long r = 0; # ifdef _WIN64 _BitScanReverse64(&r, x); # else // Scan the high 32 bits. - if (_BitScanReverse(&r, static_cast(x >> 32))) return 63 - (r + 32); - + if (_BitScanReverse(&r, static_cast(x >> 32))) + return 63 ^ static_cast(r + 32); // Scan the low 32 bits. _BitScanReverse(&r, static_cast(x)); # endif - - assert(x != 0); - // Static analysis complains about using uninitialized data - // "r", but the only way that can happen is if "x" is 0, - // which the callers guarantee to not happen. -# pragma warning(suppress : 6102) - return 63 - r; + return 63 ^ static_cast(r); } -# define FMT_BUILTIN_CLZLL(n) fmt::internal::clzll(n) -} // namespace internal -FMT_END_NAMESPACE -#endif - -FMT_BEGIN_NAMESPACE -namespace internal { +# define FMT_BUILTIN_CLZLL(n) detail::clzll(n) +#endif // FMT_MSC_VERSION && !defined(FMT_BUILTIN_CLZLL) -// A fallback implementation of uintptr_t for systems that lack it. -struct fallback_uintptr { - unsigned char value[sizeof(void*)]; -}; -#ifdef UINTPTR_MAX -using uintptr_t = ::uintptr_t; -#else -using uintptr_t = fallback_uintptr; +FMT_CONSTEXPR inline void abort_fuzzing_if(bool condition) { + ignore_unused(condition); +#ifdef FMT_FUZZ + if (condition) throw std::runtime_error("fuzzing limit reached"); #endif - -// An equivalent of `*reinterpret_cast(&source)` that doesn't produce -// undefined behavior (e.g. due to type aliasing). -// Example: uint64_t d = bit_cast(2.718); -template -inline Dest bit_cast(const Source& source) { - static_assert(sizeof(Dest) == sizeof(Source), "size mismatch"); - Dest dest; - std::memcpy(&dest, &source, sizeof(dest)); - return dest; } -// An approximation of iterator_t for pre-C++20 systems. -template -using iterator_t = decltype(std::begin(std::declval())); - -// Detect the iterator category of *any* given type in a SFINAE-friendly way. -// Unfortunately, older implementations of std::iterator_traits are not safe -// for use in a SFINAE-context. -template -struct iterator_category : std::false_type {}; - -template struct iterator_category { - using type = std::random_access_iterator_tag; -}; - -template -struct iterator_category> { - using type = typename It::iterator_category; +#if defined(FMT_USE_STRING_VIEW) +template using std_string_view = std::basic_string_view; +#else +template struct std_string_view { + operator basic_string_view() const; }; +#endif -// Detect if *any* given type models the OutputIterator concept. -template class is_output_iterator { - // Check for mutability because all iterator categories derived from - // std::input_iterator_tag *may* also meet the requirements of an - // OutputIterator, thereby falling into the category of 'mutable iterators' - // [iterator.requirements.general] clause 4. The compiler reveals this - // property only at the point of *actually dereferencing* the iterator! - template - static decltype(*(std::declval())) test(std::input_iterator_tag); - template static char& test(std::output_iterator_tag); - template static const char& test(...); - - using type = decltype(test(typename iterator_category::type{})); - - public: - static const bool value = !std::is_const>::value; +template struct string_literal { + static constexpr Char value[sizeof...(C)] = {C...}; + constexpr operator basic_string_view() const { + return {value, sizeof...(C)}; + } }; +#if FMT_CPLUSPLUS < 201703L +template +constexpr Char string_literal::value[sizeof...(C)]; +#endif -// A workaround for std::string not having mutable data() until C++17. -template inline Char* get_data(std::basic_string& s) { - return &s[0]; -} -template -inline typename Container::value_type* get_data(Container& c) { - return c.data(); +// Implementation of std::bit_cast for pre-C++20. +template +FMT_CONSTEXPR20 auto bit_cast(const From& from) -> To { +#ifdef __cpp_lib_bit_cast + if (is_constant_evaluated()) return std::bit_cast(from); +#endif + auto to = To(); + // The cast suppresses a bogus -Wclass-memaccess on GCC. + std::memcpy(static_cast(&to), &from, sizeof(to)); + return to; } -#ifdef _SECURE_SCL -// Make a checked iterator to avoid MSVC warnings. -template using checked_ptr = stdext::checked_array_iterator; -template checked_ptr make_checked(T* p, std::size_t size) { - return {p, size}; -} +inline auto is_big_endian() -> bool { +#ifdef _WIN32 + return false; +#elif defined(__BIG_ENDIAN__) + return true; +#elif defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) + return __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__; #else -template using checked_ptr = T*; -template inline T* make_checked(T* p, std::size_t) { return p; } + struct bytes { + char data[sizeof(int)]; + }; + return bit_cast(1).data[0] == 0; #endif - -template ::value)> -inline checked_ptr reserve( - std::back_insert_iterator& it, std::size_t n) { - Container& c = get_container(it); - std::size_t size = c.size(); - c.resize(size + n); - return make_checked(get_data(c) + size, n); -} - -template -inline Iterator& reserve(Iterator& it, std::size_t) { - return it; } -// An output iterator that counts the number of objects written to it and -// discards them. -template class counting_iterator { +class uint128_fallback { private: - std::size_t count_; - mutable T blackhole_; + uint64_t lo_, hi_; public: - using iterator_category = std::output_iterator_tag; - using value_type = T; - using difference_type = std::ptrdiff_t; - using pointer = T*; - using reference = T&; - using _Unchecked_type = counting_iterator; // Mark iterator as checked. - - counting_iterator() : count_(0) {} + constexpr uint128_fallback(uint64_t hi, uint64_t lo) : lo_(lo), hi_(hi) {} + constexpr uint128_fallback(uint64_t value = 0) : lo_(value), hi_(0) {} - std::size_t count() const { return count_; } + constexpr auto high() const noexcept -> uint64_t { return hi_; } + constexpr auto low() const noexcept -> uint64_t { return lo_; } - counting_iterator& operator++() { - ++count_; + template ::value)> + constexpr explicit operator T() const { + return static_cast(lo_); + } + + friend constexpr auto operator==(const uint128_fallback& lhs, + const uint128_fallback& rhs) -> bool { + return lhs.hi_ == rhs.hi_ && lhs.lo_ == rhs.lo_; + } + friend constexpr auto operator!=(const uint128_fallback& lhs, + const uint128_fallback& rhs) -> bool { + return !(lhs == rhs); + } + friend constexpr auto operator>(const uint128_fallback& lhs, + const uint128_fallback& rhs) -> bool { + return lhs.hi_ != rhs.hi_ ? lhs.hi_ > rhs.hi_ : lhs.lo_ > rhs.lo_; + } + friend constexpr auto operator|(const uint128_fallback& lhs, + const uint128_fallback& rhs) + -> uint128_fallback { + return {lhs.hi_ | rhs.hi_, lhs.lo_ | rhs.lo_}; + } + friend constexpr auto operator&(const uint128_fallback& lhs, + const uint128_fallback& rhs) + -> uint128_fallback { + return {lhs.hi_ & rhs.hi_, lhs.lo_ & rhs.lo_}; + } + friend constexpr auto operator~(const uint128_fallback& n) + -> uint128_fallback { + return {~n.hi_, ~n.lo_}; + } + friend FMT_CONSTEXPR auto operator+(const uint128_fallback& lhs, + const uint128_fallback& rhs) + -> uint128_fallback { + auto result = uint128_fallback(lhs); + result += rhs; + return result; + } + friend FMT_CONSTEXPR auto operator*(const uint128_fallback& lhs, uint32_t rhs) + -> uint128_fallback { + FMT_ASSERT(lhs.hi_ == 0, ""); + uint64_t hi = (lhs.lo_ >> 32) * rhs; + uint64_t lo = (lhs.lo_ & ~uint32_t()) * rhs; + uint64_t new_lo = (hi << 32) + lo; + return {(hi >> 32) + (new_lo < lo ? 1 : 0), new_lo}; + } + friend constexpr auto operator-(const uint128_fallback& lhs, uint64_t rhs) + -> uint128_fallback { + return {lhs.hi_ - (lhs.lo_ < rhs ? 1 : 0), lhs.lo_ - rhs}; + } + FMT_CONSTEXPR auto operator>>(int shift) const -> uint128_fallback { + if (shift == 64) return {0, hi_}; + if (shift > 64) return uint128_fallback(0, hi_) >> (shift - 64); + return {hi_ >> shift, (hi_ << (64 - shift)) | (lo_ >> shift)}; + } + FMT_CONSTEXPR auto operator<<(int shift) const -> uint128_fallback { + if (shift == 64) return {lo_, 0}; + if (shift > 64) return uint128_fallback(lo_, 0) << (shift - 64); + return {hi_ << shift | (lo_ >> (64 - shift)), (lo_ << shift)}; + } + FMT_CONSTEXPR auto operator>>=(int shift) -> uint128_fallback& { + return *this = *this >> shift; + } + FMT_CONSTEXPR void operator+=(uint128_fallback n) { + uint64_t new_lo = lo_ + n.lo_; + uint64_t new_hi = hi_ + n.hi_ + (new_lo < lo_ ? 1 : 0); + FMT_ASSERT(new_hi >= hi_, ""); + lo_ = new_lo; + hi_ = new_hi; + } + FMT_CONSTEXPR void operator&=(uint128_fallback n) { + lo_ &= n.lo_; + hi_ &= n.hi_; + } + + FMT_CONSTEXPR20 auto operator+=(uint64_t n) noexcept -> uint128_fallback& { + if (is_constant_evaluated()) { + lo_ += n; + hi_ += (lo_ < n ? 1 : 0); + return *this; + } +#if FMT_HAS_BUILTIN(__builtin_addcll) && !defined(__ibmxl__) + unsigned long long carry; + lo_ = __builtin_addcll(lo_, n, 0, &carry); + hi_ += carry; +#elif FMT_HAS_BUILTIN(__builtin_ia32_addcarryx_u64) && !defined(__ibmxl__) + unsigned long long result; + auto carry = __builtin_ia32_addcarryx_u64(0, lo_, n, &result); + lo_ = result; + hi_ += carry; +#elif defined(_MSC_VER) && defined(_M_X64) + auto carry = _addcarry_u64(0, lo_, n, &lo_); + _addcarry_u64(carry, hi_, 0, &hi_); +#else + lo_ += n; + hi_ += (lo_ < n ? 1 : 0); +#endif return *this; } +}; - counting_iterator operator++(int) { - auto it = *this; - ++*this; - return it; - } +using uint128_t = conditional_t; - T& operator*() const { return blackhole_; } -}; +#ifdef UINTPTR_MAX +using uintptr_t = ::uintptr_t; +#else +using uintptr_t = uint128_t; +#endif -template class truncating_iterator_base { - protected: - OutputIt out_; - std::size_t limit_; - std::size_t count_; +// Returns the largest possible value for type T. Same as +// std::numeric_limits::max() but shorter and not affected by the max macro. +template constexpr auto max_value() -> T { + return (std::numeric_limits::max)(); +} +template constexpr auto num_bits() -> int { + return std::numeric_limits::digits; +} +// std::numeric_limits::digits may return 0 for 128-bit ints. +template <> constexpr auto num_bits() -> int { return 128; } +template <> constexpr auto num_bits() -> int { return 128; } +template <> constexpr auto num_bits() -> int { return 128; } + +// A heterogeneous bit_cast used for converting 96-bit long double to uint128_t +// and 128-bit pointers to uint128_fallback. +template sizeof(From))> +inline auto bit_cast(const From& from) -> To { + constexpr auto size = static_cast(sizeof(From) / sizeof(unsigned short)); + struct data_t { + unsigned short value[static_cast(size)]; + } data = bit_cast(from); + auto result = To(); + if (const_check(is_big_endian())) { + for (int i = 0; i < size; ++i) + result = (result << num_bits()) | data.value[i]; + } else { + for (int i = size - 1; i >= 0; --i) + result = (result << num_bits()) | data.value[i]; + } + return result; +} - truncating_iterator_base(OutputIt out, std::size_t limit) - : out_(out), limit_(limit), count_(0) {} +template +FMT_CONSTEXPR20 inline auto countl_zero_fallback(UInt n) -> int { + int lz = 0; + constexpr UInt msb_mask = static_cast(1) << (num_bits() - 1); + for (; (n & msb_mask) == 0; n <<= 1) lz++; + return lz; +} - public: - using iterator_category = std::output_iterator_tag; - using difference_type = void; - using pointer = void; - using reference = void; - using _Unchecked_type = - truncating_iterator_base; // Mark iterator as checked. +FMT_CONSTEXPR20 inline auto countl_zero(uint32_t n) -> int { +#ifdef FMT_BUILTIN_CLZ + if (!is_constant_evaluated()) return FMT_BUILTIN_CLZ(n); +#endif + return countl_zero_fallback(n); +} - OutputIt base() const { return out_; } - std::size_t count() const { return count_; } -}; +FMT_CONSTEXPR20 inline auto countl_zero(uint64_t n) -> int { +#ifdef FMT_BUILTIN_CLZLL + if (!is_constant_evaluated()) return FMT_BUILTIN_CLZLL(n); +#endif + return countl_zero_fallback(n); +} -// An output iterator that truncates the output and counts the number of objects -// written to it. +FMT_INLINE void assume(bool condition) { + (void)condition; +#if FMT_HAS_BUILTIN(__builtin_assume) && !FMT_ICC_VERSION + __builtin_assume(condition); +#elif FMT_GCC_VERSION + if (!condition) __builtin_unreachable(); +#endif +} + +// Attempts to reserve space for n extra characters in the output range. +// Returns a pointer to the reserved range or a reference to it. template ::value_type>::type> -class truncating_iterator; + FMT_ENABLE_IF(is_back_insert_iterator::value&& + is_contiguous::value)> +#if FMT_CLANG_VERSION >= 307 && !FMT_ICC_VERSION +__attribute__((no_sanitize("undefined"))) +#endif +FMT_CONSTEXPR20 inline auto +reserve(OutputIt it, size_t n) -> typename OutputIt::value_type* { + auto& c = get_container(it); + size_t size = c.size(); + c.resize(size + n); + return &c[size]; +} -template -class truncating_iterator - : public truncating_iterator_base { - using traits = std::iterator_traits; +template +FMT_CONSTEXPR20 inline auto reserve(basic_appender it, size_t n) + -> basic_appender { + buffer& buf = get_container(it); + buf.try_reserve(buf.size() + n); + return it; +} + +template +constexpr auto reserve(Iterator& it, size_t) -> Iterator& { + return it; +} - mutable typename traits::value_type blackhole_; +template +using reserve_iterator = + remove_reference_t(), 0))>; - public: - using value_type = typename traits::value_type; +template +constexpr auto to_pointer(OutputIt, size_t) -> T* { + return nullptr; +} +template FMT_CONSTEXPR auto to_pointer(T*& ptr, size_t n) -> T* { + T* begin = ptr; + ptr += n; + return begin; +} +template +FMT_CONSTEXPR20 auto to_pointer(basic_appender it, size_t n) -> T* { + buffer& buf = get_container(it); + buf.try_reserve(buf.size() + n); + auto size = buf.size(); + if (buf.capacity() < size + n) return nullptr; + buf.try_resize(size + n); + return buf.data() + size; +} - truncating_iterator(OutputIt out, std::size_t limit) - : truncating_iterator_base(out, limit) {} +template ::value&& + is_contiguous::value)> +inline auto base_iterator(OutputIt it, + typename OutputIt::container_type::value_type*) + -> OutputIt { + return it; +} - truncating_iterator& operator++() { - if (this->count_++ < this->limit_) ++this->out_; - return *this; - } +template +constexpr auto base_iterator(Iterator, Iterator it) -> Iterator { + return it; +} - truncating_iterator operator++(int) { - auto it = *this; - ++*this; - return it; - } +// is spectacularly slow to compile in C++20 so use a simple fill_n +// instead (#1998). +template +FMT_CONSTEXPR auto fill_n(OutputIt out, Size count, const T& value) + -> OutputIt { + for (Size i = 0; i < count; ++i) *out++ = value; + return out; +} +template +FMT_CONSTEXPR20 auto fill_n(T* out, Size count, char value) -> T* { + if (is_constant_evaluated()) return fill_n(out, count, value); + static_assert(sizeof(T) == 1, + "sizeof(T) must be 1 to use char for initialization"); + std::memset(out, value, to_unsigned(count)); + return out + count; +} - value_type& operator*() const { - return this->count_ < this->limit_ ? *this->out_ : blackhole_; - } -}; +template +FMT_CONSTEXPR FMT_NOINLINE auto copy_noinline(InputIt begin, InputIt end, + OutputIt out) -> OutputIt { + return copy(begin, end, out); +} -template -class truncating_iterator - : public truncating_iterator_base { - public: - using value_type = typename OutputIt::container_type::value_type; +// A public domain branchless UTF-8 decoder by Christopher Wellons: +// https://github.com/skeeto/branchless-utf8 +/* Decode the next character, c, from s, reporting errors in e. + * + * Since this is a branchless decoder, four bytes will be read from the + * buffer regardless of the actual length of the next character. This + * means the buffer _must_ have at least three bytes of zero padding + * following the end of the data stream. + * + * Errors are reported in e, which will be non-zero if the parsed + * character was somehow invalid: invalid byte sequence, non-canonical + * encoding, or a surrogate half. + * + * The function returns a pointer to the next character. When an error + * occurs, this pointer will be a guess that depends on the particular + * error, but it will always advance at least one byte. + */ +FMT_CONSTEXPR inline auto utf8_decode(const char* s, uint32_t* c, int* e) + -> const char* { + constexpr int masks[] = {0x00, 0x7f, 0x1f, 0x0f, 0x07}; + constexpr uint32_t mins[] = {4194304, 0, 128, 2048, 65536}; + constexpr int shiftc[] = {0, 18, 12, 6, 0}; + constexpr int shifte[] = {0, 6, 4, 2, 0}; + + int len = "\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\0\0\0\0\0\0\0\0\2\2\2\2\3\3\4" + [static_cast(*s) >> 3]; + // Compute the pointer to the next character early so that the next + // iteration can start working on the next character. Neither Clang + // nor GCC figure out this reordering on their own. + const char* next = s + len + !len; + + using uchar = unsigned char; + + // Assume a four-byte character and load four bytes. Unused bits are + // shifted out. + *c = uint32_t(uchar(s[0]) & masks[len]) << 18; + *c |= uint32_t(uchar(s[1]) & 0x3f) << 12; + *c |= uint32_t(uchar(s[2]) & 0x3f) << 6; + *c |= uint32_t(uchar(s[3]) & 0x3f) << 0; + *c >>= shiftc[len]; + + // Accumulate the various error conditions. + *e = (*c < mins[len]) << 6; // non-canonical encoding + *e |= ((*c >> 11) == 0x1b) << 7; // surrogate half? + *e |= (*c > 0x10FFFF) << 8; // out of range? + *e |= (uchar(s[1]) & 0xc0) >> 2; + *e |= (uchar(s[2]) & 0xc0) >> 4; + *e |= uchar(s[3]) >> 6; + *e ^= 0x2a; // top two bits of each tail byte correct? + *e >>= shifte[len]; + + return next; +} - truncating_iterator(OutputIt out, std::size_t limit) - : truncating_iterator_base(out, limit) {} +constexpr FMT_INLINE_VARIABLE uint32_t invalid_code_point = ~uint32_t(); + +// Invokes f(cp, sv) for every code point cp in s with sv being the string view +// corresponding to the code point. cp is invalid_code_point on error. +template +FMT_CONSTEXPR void for_each_codepoint(string_view s, F f) { + auto decode = [f](const char* buf_ptr, const char* ptr) { + auto cp = uint32_t(); + auto error = 0; + auto end = utf8_decode(buf_ptr, &cp, &error); + bool result = f(error ? invalid_code_point : cp, + string_view(ptr, error ? 1 : to_unsigned(end - buf_ptr))); + return result ? (error ? buf_ptr + 1 : end) : nullptr; + }; - truncating_iterator& operator=(value_type val) { - if (this->count_++ < this->limit_) this->out_ = val; - return *this; + auto p = s.data(); + const size_t block_size = 4; // utf8_decode always reads blocks of 4 chars. + if (s.size() >= block_size) { + for (auto end = p + s.size() - block_size + 1; p < end;) { + p = decode(p, p); + if (!p) return; + } } + auto num_chars_left = to_unsigned(s.data() + s.size() - p); + if (num_chars_left == 0) return; - truncating_iterator& operator++() { return *this; } - truncating_iterator& operator++(int) { return *this; } - truncating_iterator& operator*() { return *this; } -}; + // Suppress bogus -Wstringop-overflow. + if (FMT_GCC_VERSION) num_chars_left &= 3; + char buf[2 * block_size - 1] = {}; + copy(p, p + num_chars_left, buf); + const char* buf_ptr = buf; + do { + auto end = decode(buf_ptr, p); + if (!end) return; + p += end - buf_ptr; + buf_ptr = end; + } while (buf_ptr < buf + num_chars_left); +} -// A range with the specified output iterator and value type. -template -class output_range { - private: - OutputIt it_; +FMT_CONSTEXPR inline auto display_width_of(uint32_t cp) noexcept -> size_t { + return to_unsigned( + 1 + (cp >= 0x1100 && + (cp <= 0x115f || // Hangul Jamo init. consonants + cp == 0x2329 || // LEFT-POINTING ANGLE BRACKET + cp == 0x232a || // RIGHT-POINTING ANGLE BRACKET + // CJK ... Yi except IDEOGRAPHIC HALF FILL SPACE: + (cp >= 0x2e80 && cp <= 0xa4cf && cp != 0x303f) || + (cp >= 0xac00 && cp <= 0xd7a3) || // Hangul Syllables + (cp >= 0xf900 && cp <= 0xfaff) || // CJK Compatibility Ideographs + (cp >= 0xfe10 && cp <= 0xfe19) || // Vertical Forms + (cp >= 0xfe30 && cp <= 0xfe6f) || // CJK Compatibility Forms + (cp >= 0xff00 && cp <= 0xff60) || // Fullwidth Forms + (cp >= 0xffe0 && cp <= 0xffe6) || // Fullwidth Forms + (cp >= 0x20000 && cp <= 0x2fffd) || // CJK + (cp >= 0x30000 && cp <= 0x3fffd) || + // Miscellaneous Symbols and Pictographs + Emoticons: + (cp >= 0x1f300 && cp <= 0x1f64f) || + // Supplemental Symbols and Pictographs: + (cp >= 0x1f900 && cp <= 0x1f9ff)))); +} - public: - using value_type = T; - using iterator = OutputIt; - struct sentinel {}; +template struct is_integral : std::is_integral {}; +template <> struct is_integral : std::true_type {}; +template <> struct is_integral : std::true_type {}; - explicit output_range(OutputIt it) : it_(it) {} - OutputIt begin() const { return it_; } - sentinel end() const { return {}; } // Sentinel is not used yet. -}; +template +using is_signed = + std::integral_constant::is_signed || + std::is_same::value>; -// A range with an iterator appending to a buffer. template -class buffer_range - : public output_range>, T> { - public: - using iterator = std::back_insert_iterator>; - using output_range::output_range; - buffer_range(buffer& buf) - : output_range(std::back_inserter(buf)) {} -}; +using is_integer = + bool_constant::value && !std::is_same::value && + !std::is_same::value && + !std::is_same::value>; -template -inline size_t count_code_points(basic_string_view s) { - return s.size(); -} +#if defined(FMT_USE_FLOAT128) +// Use the provided definition. +#elif FMT_CLANG_VERSION >= 309 && FMT_HAS_INCLUDE() +# define FMT_USE_FLOAT128 1 +#elif FMT_GCC_VERSION && defined(_GLIBCXX_USE_FLOAT128) && \ + !defined(__STRICT_ANSI__) +# define FMT_USE_FLOAT128 1 +#else +# define FMT_USE_FLOAT128 0 +#endif +#if FMT_USE_FLOAT128 +using float128 = __float128; +#else +struct float128 {}; +#endif -// Counts the number of code points in a UTF-8 string. -inline size_t count_code_points(basic_string_view s) { - const char8_t* data = s.data(); - size_t num_code_points = 0; - for (size_t i = 0, size = s.size(); i != size; ++i) { - if ((data[i] & 0xc0) != 0x80) ++num_code_points; - } - return num_code_points; -} +template using is_float128 = std::is_same; -inline char8_t to_char8_t(char c) { return static_cast(c); } +template struct is_floating_point : std::is_floating_point {}; +template <> struct is_floating_point : std::true_type {}; -template -using needs_conversion = bool_constant< - std::is_same::value_type, - char>::value && - std::is_same::value>; +template ::value> +struct is_fast_float : bool_constant::is_iec559 && + sizeof(T) <= sizeof(double)> {}; +template struct is_fast_float : std::false_type {}; -template ::value)> -OutputIt copy_str(InputIt begin, InputIt end, OutputIt it) { - return std::copy(begin, end, it); -} +template +using fast_float_t = conditional_t; -template ::value)> -OutputIt copy_str(InputIt begin, InputIt end, OutputIt it) { - return std::transform(begin, end, it, to_char8_t); -} +template +using is_double_double = bool_constant::digits == 106>; -#ifndef FMT_USE_GRISU -# define FMT_USE_GRISU 0 +#ifndef FMT_USE_FULL_CACHE_DRAGONBOX +# define FMT_USE_FULL_CACHE_DRAGONBOX 0 #endif -template constexpr bool use_grisu() { - return FMT_USE_GRISU && std::numeric_limits::is_iec559 && - sizeof(T) <= sizeof(double); -} +// An allocator that uses malloc/free to allow removing dependency on the C++ +// standard libary runtime. std::decay is used for back_inserter to be found by +// ADL when applied to memory_buffer. +template struct allocator : private std::decay { + using value_type = T; -template -template -void buffer::append(const U* begin, const U* end) { - std::size_t new_size = size_ + to_unsigned(end - begin); - reserve(new_size); - std::uninitialized_copy(begin, end, make_checked(ptr_, capacity_) + size_); - size_ = new_size; -} -} // namespace internal + auto allocate(size_t n) -> T* { + FMT_ASSERT(n <= max_value() / sizeof(T), ""); + T* p = static_cast(malloc(n * sizeof(T))); + if (!p) FMT_THROW(std::bad_alloc()); + return p; + } -// A UTF-8 string view. -class u8string_view : public basic_string_view { - public: - u8string_view(const char* s) - : basic_string_view(reinterpret_cast(s)) {} - u8string_view(const char* s, size_t count) FMT_NOEXCEPT - : basic_string_view(reinterpret_cast(s), count) { + void deallocate(T* p, size_t) { free(p); } + + constexpr friend auto operator==(allocator, allocator) noexcept -> bool { + return true; // All instances of this allocator are equivalent. + } + constexpr friend auto operator!=(allocator, allocator) noexcept -> bool { + return false; } }; -#if FMT_USE_USER_DEFINED_LITERALS -inline namespace literals { -inline u8string_view operator"" _u(const char* s, std::size_t n) { - return {s, n}; +template +FMT_CONSTEXPR auto maybe_set_debug_format(Formatter& f, bool set) + -> decltype(f.set_debug_format(set)) { + f.set_debug_format(set); } -} // namespace literals -#endif +template +FMT_CONSTEXPR void maybe_set_debug_format(Formatter&, ...) {} + +} // namespace detail + +FMT_BEGIN_EXPORT // The number of characters to store in the basic_memory_buffer object itself // to avoid dynamic memory allocation. enum { inline_buffer_size = 500 }; /** - \rst - A dynamically growing memory buffer for trivially copyable/constructible types - with the first ``SIZE`` elements stored in the object itself. - - You can use one of the following type aliases for common character types: - - +----------------+------------------------------+ - | Type | Definition | - +================+==============================+ - | memory_buffer | basic_memory_buffer | - +----------------+------------------------------+ - | wmemory_buffer | basic_memory_buffer | - +----------------+------------------------------+ - - **Example**:: - - fmt::memory_buffer out; - format_to(out, "The answer is {}.", 42); - - This will append the following output to the ``out`` object: - - .. code-block:: none - - The answer is 42. - - The output can be converted to an ``std::string`` with ``to_string(out)``. - \endrst + * A dynamically growing memory buffer for trivially copyable/constructible + * types with the first `SIZE` elements stored in the object itself. Most + * commonly used via the `memory_buffer` alias for `char`. + * + * **Example**: + * + * auto out = fmt::memory_buffer(); + * fmt::format_to(std::back_inserter(out), "The answer is {}.", 42); + * + * This will append "The answer is 42." to `out`. The buffer content can be + * converted to `std::string` with `to_string(out)`. */ -template > -class basic_memory_buffer : private Allocator, public internal::buffer { +template > +class basic_memory_buffer : public detail::buffer { private: T store_[SIZE]; + // Don't inherit from Allocator to avoid generating type_info for it. + FMT_NO_UNIQUE_ADDRESS Allocator alloc_; + // Deallocate memory allocated by the buffer. - void deallocate() { + FMT_CONSTEXPR20 void deallocate() { T* data = this->data(); - if (data != store_) Allocator::deallocate(data, this->capacity()); + if (data != store_) alloc_.deallocate(data, this->capacity()); + } + + static FMT_CONSTEXPR20 void grow(detail::buffer& buf, size_t size) { + detail::abort_fuzzing_if(size > 5000); + auto& self = static_cast(buf); + const size_t max_size = + std::allocator_traits::max_size(self.alloc_); + size_t old_capacity = buf.capacity(); + size_t new_capacity = old_capacity + old_capacity / 2; + if (size > new_capacity) + new_capacity = size; + else if (new_capacity > max_size) + new_capacity = max_of(size, max_size); + T* old_data = buf.data(); + T* new_data = self.alloc_.allocate(new_capacity); + // Suppress a bogus -Wstringop-overflow in gcc 13.1 (#3481). + detail::assume(buf.size() <= new_capacity); + // The following code doesn't throw, so the raw pointer above doesn't leak. + memcpy(new_data, old_data, buf.size() * sizeof(T)); + self.set(new_data, new_capacity); + // deallocate must not throw according to the standard, but even if it does, + // the buffer already uses the new storage and will deallocate it in + // destructor. + if (old_data != self.store_) self.alloc_.deallocate(old_data, old_capacity); } - protected: - void grow(std::size_t size) FMT_OVERRIDE; - public: using value_type = T; using const_reference = const T&; - explicit basic_memory_buffer(const Allocator& alloc = Allocator()) - : Allocator(alloc) { + FMT_CONSTEXPR explicit basic_memory_buffer( + const Allocator& alloc = Allocator()) + : detail::buffer(grow), alloc_(alloc) { this->set(store_, SIZE); + if (detail::is_constant_evaluated()) detail::fill_n(store_, SIZE, T()); } - ~basic_memory_buffer() { deallocate(); } + FMT_CONSTEXPR20 ~basic_memory_buffer() { deallocate(); } private: + template :: + propagate_on_container_move_assignment::value)> + FMT_CONSTEXPR20 auto move_alloc(basic_memory_buffer& other) -> bool { + alloc_ = std::move(other.alloc_); + return true; + } + // If the allocator does not propagate then copy the data from other. + template :: + propagate_on_container_move_assignment::value)> + FMT_CONSTEXPR20 auto move_alloc(basic_memory_buffer& other) -> bool { + T* data = other.data(); + if (alloc_ == other.alloc_ || data == other.store_) return true; + size_t size = other.size(); + // Perform copy operation, allocators are different. + this->resize(size); + detail::copy(data, data + size, this->data()); + return false; + } + // Move data from other to this buffer. - void move(basic_memory_buffer& other) { - Allocator &this_alloc = *this, &other_alloc = other; - this_alloc = std::move(other_alloc); + FMT_CONSTEXPR20 void move(basic_memory_buffer& other) { T* data = other.data(); - std::size_t size = other.size(), capacity = other.capacity(); + size_t size = other.size(), capacity = other.capacity(); + if (!move_alloc(other)) return; if (data == other.store_) { this->set(store_, capacity); - std::uninitialized_copy(other.store_, other.store_ + size, - internal::make_checked(store_, capacity)); + detail::copy(other.store_, other.store_ + size, store_); } else { this->set(data, capacity); // Set pointer to the inline array so that delete is not called // when deallocating. other.set(other.store_, 0); + other.clear(); } this->resize(size); } public: - /** - \rst - Constructs a :class:`fmt::basic_memory_buffer` object moving the content - of the other object to it. - \endrst - */ - basic_memory_buffer(basic_memory_buffer&& other) { move(other); } - - /** - \rst - Moves the content of the other ``basic_memory_buffer`` object to this one. - \endrst - */ - basic_memory_buffer& operator=(basic_memory_buffer&& other) { - assert(this != &other); + /// Constructs a `basic_memory_buffer` object moving the content of the other + /// object to it. + FMT_CONSTEXPR20 basic_memory_buffer(basic_memory_buffer&& other) noexcept + : detail::buffer(grow) { + move(other); + } + + /// Moves the content of the other `basic_memory_buffer` object to this one. + auto operator=(basic_memory_buffer&& other) noexcept -> basic_memory_buffer& { + FMT_ASSERT(this != &other, ""); deallocate(); move(other); return *this; } // Returns a copy of the allocator associated with this buffer. - Allocator get_allocator() const { return *this; } + auto get_allocator() const -> Allocator { return alloc_; } + + /// Resizes the buffer to contain `count` elements. If T is a POD type new + /// elements may not be initialized. + FMT_CONSTEXPR void resize(size_t count) { this->try_resize(count); } + + /// Increases the buffer capacity to `new_capacity`. + void reserve(size_t new_capacity) { this->try_reserve(new_capacity); } + + using detail::buffer::append; + template + FMT_CONSTEXPR20 void append(const ContiguousRange& range) { + append(range.data(), range.data() + range.size()); + } }; -template -void basic_memory_buffer::grow(std::size_t size) { -#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION - if (size > 1000) throw std::runtime_error("fuzz mode - won't grow that much"); -#endif - std::size_t old_capacity = this->capacity(); - std::size_t new_capacity = old_capacity + old_capacity / 2; - if (size > new_capacity) new_capacity = size; - T* old_data = this->data(); - T* new_data = std::allocator_traits::allocate(*this, new_capacity); - // The following code doesn't throw, so the raw pointer above doesn't leak. - std::uninitialized_copy(old_data, old_data + this->size(), - internal::make_checked(new_data, new_capacity)); - this->set(new_data, new_capacity); - // deallocate must not throw according to the standard, but even if it does, - // the buffer already uses the new storage and will deallocate it in - // destructor. - if (old_data != store_) Allocator::deallocate(old_data, old_capacity); +using memory_buffer = basic_memory_buffer; + +template +FMT_NODISCARD auto to_string(const basic_memory_buffer& buf) + -> std::string { + auto size = buf.size(); + detail::assume(size < std::string().max_size()); + return {buf.data(), size}; } -using memory_buffer = basic_memory_buffer; -using wmemory_buffer = basic_memory_buffer; +// A writer to a buffered stream. It doesn't own the underlying stream. +class writer { + private: + detail::buffer* buf_; + + // We cannot create a file buffer in advance because any write to a FILE may + // invalidate it. + FILE* file_; + + public: + inline writer(FILE* f) : buf_(nullptr), file_(f) {} + inline writer(detail::buffer& buf) : buf_(&buf) {} + + /// Formats `args` according to specifications in `fmt` and writes the + /// output to the file. + template void print(format_string fmt, T&&... args) { + if (buf_) + fmt::format_to(appender(*buf_), fmt, std::forward(args)...); + else + fmt::print(file_, fmt, std::forward(args)...); + } +}; + +class string_buffer { + private: + std::string str_; + detail::container_buffer buf_; -/** A formatting error such as invalid format string. */ -class FMT_API format_error : public std::runtime_error { public: - explicit format_error(const char* message) : std::runtime_error(message) {} - explicit format_error(const std::string& message) - : std::runtime_error(message) {} - ~format_error() FMT_NOEXCEPT; + inline string_buffer() : buf_(str_) {} + + inline operator writer() { return buf_; } + inline auto str() -> std::string& { return str_; } +}; + +template +struct is_contiguous> : std::true_type { +}; + +// Suppress a misleading warning in older versions of clang. +FMT_PRAGMA_CLANG(diagnostic ignored "-Wweak-vtables") + +/// An error reported from a formatting function. +class FMT_SO_VISIBILITY("default") format_error : public std::runtime_error { + public: + using std::runtime_error::runtime_error; +}; + +class loc_value; + +FMT_END_EXPORT +namespace detail { +FMT_API auto write_console(int fd, string_view text) -> bool; +FMT_API void print(FILE*, string_view); +} // namespace detail + +namespace detail { +template struct fixed_string { + FMT_CONSTEXPR20 fixed_string(const Char (&s)[N]) { + detail::copy(static_cast(s), s + N, + data); + } + Char data[N] = {}; }; -namespace internal { +// Converts a compile-time string to basic_string_view. +FMT_EXPORT template +constexpr auto compile_string_to_view(const Char (&s)[N]) + -> basic_string_view { + // Remove trailing NUL character if needed. Won't be present if this is used + // with a raw character array (i.e. not defined as a string). + return {s, N - (std::char_traits::to_int_type(s[N - 1]) == 0 ? 1 : 0)}; +} +FMT_EXPORT template +constexpr auto compile_string_to_view(basic_string_view s) + -> basic_string_view { + return s; +} // Returns true if value is negative, false otherwise. // Same as `value < 0` but doesn't produce warnings if T is an unsigned type. -template ::is_signed)> -FMT_CONSTEXPR bool is_negative(T value) { +template ::value)> +constexpr auto is_negative(T value) -> bool { return value < 0; } -template ::is_signed)> -FMT_CONSTEXPR bool is_negative(T) { +template ::value)> +constexpr auto is_negative(T) -> bool { return false; } -// Smallest of uint32_t and uint64_t that is large enough to represent all -// values of T. +// Smallest of uint32_t, uint64_t, uint128_t that is large enough to +// represent all values of an integral type T. template -using uint32_or_64_t = - conditional_t::digits <= 32, uint32_t, uint64_t>; - -// Static data is placed in this class template for the header-only config. -template struct FMT_EXTERN_TEMPLATE_API basic_data { - static const uint64_t powers_of_10_64[]; - static const uint32_t zero_or_powers_of_10_32[]; - static const uint64_t zero_or_powers_of_10_64[]; - static const uint64_t pow10_significands[]; - static const int16_t pow10_exponents[]; - static const char digits[]; - static const char hex_digits[]; - static const char foreground_color[]; - static const char background_color[]; - static const char reset_color[5]; - static const wchar_t wreset_color[5]; -}; - -FMT_EXTERN template struct basic_data; - -// This is a struct rather than an alias to avoid shadowing warnings in gcc. -struct data : basic_data<> {}; +using uint32_or_64_or_128_t = + conditional_t() <= 32 && !FMT_REDUCE_INT_INSTANTIATIONS, + uint32_t, + conditional_t() <= 64, uint64_t, uint128_t>>; +template +using uint64_or_128_t = conditional_t() <= 64, uint64_t, uint128_t>; + +#define FMT_POWERS_OF_10(factor) \ + factor * 10, (factor) * 100, (factor) * 1000, (factor) * 10000, \ + (factor) * 100000, (factor) * 1000000, (factor) * 10000000, \ + (factor) * 100000000, (factor) * 1000000000 + +// Converts value in the range [0, 100) to a string. +// GCC generates slightly better code when value is pointer-size. +inline auto digits2(size_t value) -> const char* { + // Align data since unaligned access may be slower when crossing a + // hardware-specific boundary. + alignas(2) static const char data[] = + "0001020304050607080910111213141516171819" + "2021222324252627282930313233343536373839" + "4041424344454647484950515253545556575859" + "6061626364656667686970717273747576777879" + "8081828384858687888990919293949596979899"; + return &data[value * 2]; +} -#ifdef FMT_BUILTIN_CLZLL -// Returns the number of decimal digits in n. Leading zeros are not counted -// except for n == 0 in which case count_digits returns 1. -inline int count_digits(uint64_t n) { - // Based on http://graphics.stanford.edu/~seander/bithacks.html#IntegerLog10 - // and the benchmark https://github.com/localvoid/cxx-benchmark-count-digits. - int t = (64 - FMT_BUILTIN_CLZLL(n | 1)) * 1233 >> 12; - return t - (n < data::zero_or_powers_of_10_64[t]) + 1; +template constexpr auto getsign(sign s) -> Char { + return static_cast(((' ' << 24) | ('+' << 16) | ('-' << 8)) >> + (static_cast(s) * 8)); } -#else -// Fallback version of count_digits used when __builtin_clz is not available. -inline int count_digits(uint64_t n) { + +template FMT_CONSTEXPR auto count_digits_fallback(T n) -> int { int count = 1; for (;;) { // Integer division is slow so do it for a group of four digits instead @@ -695,2185 +1064,3104 @@ inline int count_digits(uint64_t n) { count += 4; } } +#if FMT_USE_INT128 +FMT_CONSTEXPR inline auto count_digits(uint128_opt n) -> int { + return count_digits_fallback(n); +} #endif -// Counts the number of digits in n. BITS = log2(radix). -template inline int count_digits(UInt n) { - int num_digits = 0; - do { - ++num_digits; - } while ((n >>= BITS) != 0); - return num_digits; +#ifdef FMT_BUILTIN_CLZLL +// It is a separate function rather than a part of count_digits to workaround +// the lack of static constexpr in constexpr functions. +inline auto do_count_digits(uint64_t n) -> int { + // This has comparable performance to the version by Kendall Willets + // (https://github.com/fmtlib/format-benchmark/blob/master/digits10) + // but uses smaller tables. + // Maps bsr(n) to ceil(log10(pow(2, bsr(n) + 1) - 1)). + static constexpr uint8_t bsr2log10[] = { + 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, + 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 9, 9, 9, 10, 10, 10, + 10, 11, 11, 11, 12, 12, 12, 13, 13, 13, 13, 14, 14, 14, 15, 15, + 15, 16, 16, 16, 16, 17, 17, 17, 18, 18, 18, 19, 19, 19, 19, 20}; + auto t = bsr2log10[FMT_BUILTIN_CLZLL(n | 1) ^ 63]; + static constexpr uint64_t zero_or_powers_of_10[] = { + 0, 0, FMT_POWERS_OF_10(1U), FMT_POWERS_OF_10(1000000000ULL), + 10000000000000000000ULL}; + return t - (n < zero_or_powers_of_10[t]); } +#endif -template <> int count_digits<4>(internal::fallback_uintptr n); +// Returns the number of decimal digits in n. Leading zeros are not counted +// except for n == 0 in which case count_digits returns 1. +FMT_CONSTEXPR20 inline auto count_digits(uint64_t n) -> int { +#ifdef FMT_BUILTIN_CLZLL + if (!is_constant_evaluated() && !FMT_OPTIMIZE_SIZE) return do_count_digits(n); +#endif + return count_digits_fallback(n); +} -#if FMT_HAS_CPP_ATTRIBUTE(always_inline) -# define FMT_ALWAYS_INLINE __attribute__((always_inline)) -#else -# define FMT_ALWAYS_INLINE +// Counts the number of digits in n. BITS = log2(radix). +template +FMT_CONSTEXPR auto count_digits(UInt n) -> int { +#ifdef FMT_BUILTIN_CLZ + if (!is_constant_evaluated() && num_bits() == 32) + return (FMT_BUILTIN_CLZ(static_cast(n) | 1) ^ 31) / BITS + 1; #endif + // Lambda avoids unreachable code warnings from NVHPC. + return [](UInt m) { + int num_digits = 0; + do { + ++num_digits; + } while ((m >>= BITS) != 0); + return num_digits; + }(n); +} -template -inline char* lg(uint32_t n, Handler h) FMT_ALWAYS_INLINE; - -// Computes g = floor(log10(n)) and calls h.on(n); -template inline char* lg(uint32_t n, Handler h) { - return n < 100 ? n < 10 ? h.template on<0>(n) : h.template on<1>(n) - : n < 1000000 - ? n < 10000 ? n < 1000 ? h.template on<2>(n) - : h.template on<3>(n) - : n < 100000 ? h.template on<4>(n) - : h.template on<5>(n) - : n < 100000000 ? n < 10000000 ? h.template on<6>(n) - : h.template on<7>(n) - : n < 1000000000 ? h.template on<8>(n) - : h.template on<9>(n); -} - -// An lg handler that formats a decimal number. -// Usage: lg(n, decimal_formatter(buffer)); -class decimal_formatter { - private: - char* buffer_; +#ifdef FMT_BUILTIN_CLZ +// It is a separate function rather than a part of count_digits to workaround +// the lack of static constexpr in constexpr functions. +FMT_INLINE auto do_count_digits(uint32_t n) -> int { +// An optimization by Kendall Willets from https://bit.ly/3uOIQrB. +// This increments the upper 32 bits (log10(T) - 1) when >= T is added. +# define FMT_INC(T) (((sizeof(#T) - 1ull) << 32) - T) + static constexpr uint64_t table[] = { + FMT_INC(0), FMT_INC(0), FMT_INC(0), // 8 + FMT_INC(10), FMT_INC(10), FMT_INC(10), // 64 + FMT_INC(100), FMT_INC(100), FMT_INC(100), // 512 + FMT_INC(1000), FMT_INC(1000), FMT_INC(1000), // 4096 + FMT_INC(10000), FMT_INC(10000), FMT_INC(10000), // 32k + FMT_INC(100000), FMT_INC(100000), FMT_INC(100000), // 256k + FMT_INC(1000000), FMT_INC(1000000), FMT_INC(1000000), // 2048k + FMT_INC(10000000), FMT_INC(10000000), FMT_INC(10000000), // 16M + FMT_INC(100000000), FMT_INC(100000000), FMT_INC(100000000), // 128M + FMT_INC(1000000000), FMT_INC(1000000000), FMT_INC(1000000000), // 1024M + FMT_INC(1000000000), FMT_INC(1000000000) // 4B + }; + auto inc = table[FMT_BUILTIN_CLZ(n | 1) ^ 31]; + return static_cast((n + inc) >> 32); +} +#endif - void write_pair(unsigned N, uint32_t index) { - std::memcpy(buffer_ + N, data::digits + index * 2, 2); - } +// Optional version of count_digits for better performance on 32-bit platforms. +FMT_CONSTEXPR20 inline auto count_digits(uint32_t n) -> int { +#ifdef FMT_BUILTIN_CLZ + if (!is_constant_evaluated() && !FMT_OPTIMIZE_SIZE) return do_count_digits(n); +#endif + return count_digits_fallback(n); +} - public: - explicit decimal_formatter(char* buf) : buffer_(buf) {} +template constexpr auto digits10() noexcept -> int { + return std::numeric_limits::digits10; +} +template <> constexpr auto digits10() noexcept -> int { return 38; } +template <> constexpr auto digits10() noexcept -> int { return 38; } - template char* on(uint32_t u) { - if (N == 0) { - *buffer_ = static_cast(u) + '0'; - } else if (N == 1) { - write_pair(0, u); - } else { - // The idea of using 4.32 fixed-point numbers is based on - // https://github.com/jeaiii/itoa - unsigned n = N - 1; - unsigned a = n / 5 * n * 53 / 16; - uint64_t t = - ((1ULL << (32 + a)) / data::zero_or_powers_of_10_32[n] + 1 - n / 9); - t = ((t * u) >> a) + n / 5 * 4; - write_pair(0, t >> 32); - for (unsigned i = 2; i < N; i += 2) { - t = 100ULL * static_cast(t); - write_pair(i, t >> 32); - } - if (N % 2 == 0) { - buffer_[N] = - static_cast((10ULL * static_cast(t)) >> 32) + '0'; - } - } - return buffer_ += N + 1; - } +template struct thousands_sep_result { + std::string grouping; + Char thousands_sep; }; -#ifdef FMT_BUILTIN_CLZ -// Optional version of count_digits for better performance on 32-bit platforms. -inline int count_digits(uint32_t n) { - int t = (32 - FMT_BUILTIN_CLZ(n | 1)) * 1233 >> 12; - return t - (n < data::zero_or_powers_of_10_32[t]) + 1; -} -#endif - -template FMT_API Char thousands_sep_impl(locale_ref loc); -template inline Char thousands_sep(locale_ref loc) { - return Char(thousands_sep_impl(loc)); +template +FMT_API auto thousands_sep_impl(locale_ref loc) -> thousands_sep_result; +template +inline auto thousands_sep(locale_ref loc) -> thousands_sep_result { + auto result = thousands_sep_impl(loc); + return {result.grouping, Char(result.thousands_sep)}; } -template <> inline wchar_t thousands_sep(locale_ref loc) { +template <> +inline auto thousands_sep(locale_ref loc) -> thousands_sep_result { return thousands_sep_impl(loc); } -template FMT_API Char decimal_point_impl(locale_ref loc); -template inline Char decimal_point(locale_ref loc) { +template +FMT_API auto decimal_point_impl(locale_ref loc) -> Char; +template inline auto decimal_point(locale_ref loc) -> Char { return Char(decimal_point_impl(loc)); } -template <> inline wchar_t decimal_point(locale_ref loc) { +template <> inline auto decimal_point(locale_ref loc) -> wchar_t { return decimal_point_impl(loc); } -// Formats a decimal unsigned integer value writing into buffer. -// add_thousands_sep is called after writing each char to add a thousands -// separator if necessary. -template -inline Char* format_decimal(Char* buffer, UInt value, int num_digits, - F add_thousands_sep) { - FMT_ASSERT(num_digits >= 0, "invalid digit count"); - buffer += num_digits; - Char* end = buffer; +#ifndef FMT_HEADER_ONLY +FMT_BEGIN_EXPORT +extern template FMT_API auto thousands_sep_impl(locale_ref) + -> thousands_sep_result; +extern template FMT_API auto thousands_sep_impl(locale_ref) + -> thousands_sep_result; +extern template FMT_API auto decimal_point_impl(locale_ref) -> char; +extern template FMT_API auto decimal_point_impl(locale_ref) -> wchar_t; +FMT_END_EXPORT +#endif // FMT_HEADER_ONLY + +// Compares two characters for equality. +template auto equal2(const Char* lhs, const char* rhs) -> bool { + return lhs[0] == Char(rhs[0]) && lhs[1] == Char(rhs[1]); +} +inline auto equal2(const char* lhs, const char* rhs) -> bool { + return memcmp(lhs, rhs, 2) == 0; +} + +// Writes a two-digit value to out. +template +FMT_CONSTEXPR20 FMT_INLINE void write2digits(Char* out, size_t value) { + if (!is_constant_evaluated() && std::is_same::value && + !FMT_OPTIMIZE_SIZE) { + memcpy(out, digits2(value), 2); + return; + } + *out++ = static_cast('0' + value / 10); + *out = static_cast('0' + value % 10); +} + +// Formats a decimal unsigned integer value writing to out pointing to a buffer +// of specified size. The caller must ensure that the buffer is large enough. +template +FMT_CONSTEXPR20 auto do_format_decimal(Char* out, UInt value, int size) + -> Char* { + FMT_ASSERT(size >= count_digits(value), "invalid digit count"); + unsigned n = to_unsigned(size); while (value >= 100) { // Integer division is slow so do it for a group of two digits instead // of for every digit. The idea comes from the talk by Alexandrescu // "Three Optimization Tips for C++". See speed-test for a comparison. - unsigned index = static_cast((value % 100) * 2); + n -= 2; + write2digits(out + n, static_cast(value % 100)); value /= 100; - *--buffer = static_cast(data::digits[index + 1]); - add_thousands_sep(buffer); - *--buffer = static_cast(data::digits[index]); - add_thousands_sep(buffer); - } - if (value < 10) { - *--buffer = static_cast('0' + value); - return end; - } - unsigned index = static_cast(value * 2); - *--buffer = static_cast(data::digits[index + 1]); - add_thousands_sep(buffer); - *--buffer = static_cast(data::digits[index]); - return end; + } + if (value >= 10) { + n -= 2; + write2digits(out + n, static_cast(value)); + } else { + out[--n] = static_cast('0' + value); + } + return out + n; } -template -inline Iterator format_decimal(Iterator out, UInt value, int num_digits, - F add_thousands_sep) { - FMT_ASSERT(num_digits >= 0, "invalid digit count"); - // Buffer should be large enough to hold all digits (<= digits10 + 1). - enum { max_size = std::numeric_limits::digits10 + 1 }; - Char buffer[max_size + max_size / 3]; - auto end = format_decimal(buffer, value, num_digits, add_thousands_sep); - return internal::copy_str(buffer, end, out); +template +FMT_CONSTEXPR FMT_INLINE auto format_decimal(Char* out, UInt value, + int num_digits) -> Char* { + do_format_decimal(out, value, num_digits); + return out + num_digits; } -template -inline It format_decimal(It out, UInt value, int num_digits) { - return format_decimal(out, value, num_digits, [](Char*) {}); +template >::value)> +FMT_CONSTEXPR auto format_decimal(OutputIt out, UInt value, int num_digits) + -> OutputIt { + if (auto ptr = to_pointer(out, to_unsigned(num_digits))) { + do_format_decimal(ptr, value, num_digits); + return out; + } + // Buffer is large enough to hold all digits (digits10 + 1). + char buffer[digits10() + 1]; + if (is_constant_evaluated()) fill_n(buffer, sizeof(buffer), '\0'); + do_format_decimal(buffer, value, num_digits); + return copy_noinline(buffer, buffer + num_digits, out); } -template -inline Char* format_uint(Char* buffer, UInt value, int num_digits, - bool upper = false) { - buffer += num_digits; - Char* end = buffer; +template +FMT_CONSTEXPR auto do_format_base2e(int base_bits, Char* out, UInt value, + int size, bool upper = false) -> Char* { + out += size; do { - const char* digits = upper ? "0123456789ABCDEF" : data::hex_digits; - unsigned digit = (value & ((1 << BASE_BITS) - 1)); - *--buffer = static_cast(BASE_BITS < 4 ? static_cast('0' + digit) - : digits[digit]); - } while ((value >>= BASE_BITS) != 0); - return end; + const char* digits = upper ? "0123456789ABCDEF" : "0123456789abcdef"; + unsigned digit = static_cast(value & ((1u << base_bits) - 1)); + *--out = static_cast(base_bits < 4 ? static_cast('0' + digit) + : digits[digit]); + } while ((value >>= base_bits) != 0); + return out; } -template -Char* format_uint(Char* buffer, internal::fallback_uintptr n, int num_digits, - bool = false) { - auto char_digits = std::numeric_limits::digits / 4; - int start = (num_digits + char_digits - 1) / char_digits - 1; - if (int start_digits = num_digits % char_digits) { - unsigned value = n.value[start--]; - buffer = format_uint(buffer, value, start_digits); - } - for (; start >= 0; --start) { - unsigned value = n.value[start]; - buffer += char_digits; - auto p = buffer; - for (int i = 0; i < char_digits; ++i) { - unsigned digit = (value & ((1 << BASE_BITS) - 1)); - *--p = static_cast(data::hex_digits[digit]); - value >>= BASE_BITS; - } - } - return buffer; +// Formats an unsigned integer in the power of two base (binary, octal, hex). +template +FMT_CONSTEXPR auto format_base2e(int base_bits, Char* out, UInt value, + int num_digits, bool upper = false) -> Char* { + do_format_base2e(base_bits, out, value, num_digits, upper); + return out + num_digits; } -template -inline It format_uint(It out, UInt value, int num_digits, bool upper = false) { - // Buffer should be large enough to hold all digits (digits / BASE_BITS + 1). - char buffer[std::numeric_limits::digits / BASE_BITS + 1]; - format_uint(buffer, value, num_digits, upper); - return internal::copy_str(buffer, buffer + num_digits, out); +template ::value)> +FMT_CONSTEXPR inline auto format_base2e(int base_bits, OutputIt out, UInt value, + int num_digits, bool upper = false) + -> OutputIt { + if (auto ptr = to_pointer(out, to_unsigned(num_digits))) { + format_base2e(base_bits, ptr, value, num_digits, upper); + return out; + } + // Make buffer large enough for any base. + char buffer[num_bits()]; + if (is_constant_evaluated()) fill_n(buffer, sizeof(buffer), '\0'); + format_base2e(base_bits, buffer, value, num_digits, upper); + return detail::copy_noinline(buffer, buffer + num_digits, out); } -#ifndef _WIN32 -# define FMT_USE_WINDOWS_H 0 -#elif !defined(FMT_USE_WINDOWS_H) -# define FMT_USE_WINDOWS_H 1 -#endif - -// Define FMT_USE_WINDOWS_H to 0 to disable use of windows.h. -// All the functionality that relies on it will be disabled too. -#if FMT_USE_WINDOWS_H // A converter from UTF-8 to UTF-16. -// It is only provided for Windows since other systems support UTF-8 natively. class utf8_to_utf16 { private: - wmemory_buffer buffer_; + basic_memory_buffer buffer_; public: FMT_API explicit utf8_to_utf16(string_view s); - operator wstring_view() const { return wstring_view(&buffer_[0], size()); } - size_t size() const { return buffer_.size() - 1; } - const wchar_t* c_str() const { return &buffer_[0]; } - std::wstring str() const { return std::wstring(&buffer_[0], size()); } + inline operator basic_string_view() const { + return {&buffer_[0], size()}; + } + inline auto size() const -> size_t { return buffer_.size() - 1; } + inline auto c_str() const -> const wchar_t* { return &buffer_[0]; } + inline auto str() const -> std::wstring { return {&buffer_[0], size()}; } }; -// A converter from UTF-16 to UTF-8. -// It is only provided for Windows since other systems support UTF-8 natively. -class utf16_to_utf8 { +enum class to_utf8_error_policy { abort, replace }; + +// A converter from UTF-16/UTF-32 (host endian) to UTF-8. +template class to_utf8 { private: - memory_buffer buffer_; + Buffer buffer_; public: - utf16_to_utf8() {} - FMT_API explicit utf16_to_utf8(wstring_view s); + to_utf8() {} + explicit to_utf8(basic_string_view s, + to_utf8_error_policy policy = to_utf8_error_policy::abort) { + static_assert(sizeof(WChar) == 2 || sizeof(WChar) == 4, + "expected utf16 or utf32"); + if (!convert(s, policy)) { + FMT_THROW(std::runtime_error(sizeof(WChar) == 2 ? "invalid utf16" + : "invalid utf32")); + } + } operator string_view() const { return string_view(&buffer_[0], size()); } - size_t size() const { return buffer_.size() - 1; } - const char* c_str() const { return &buffer_[0]; } - std::string str() const { return std::string(&buffer_[0], size()); } - - // Performs conversion returning a system error code instead of - // throwing exception on conversion error. This method may still throw - // in case of memory allocation error. - FMT_API int convert(wstring_view s); + auto size() const -> size_t { return buffer_.size() - 1; } + auto c_str() const -> const char* { return &buffer_[0]; } + auto str() const -> std::string { return std::string(&buffer_[0], size()); } + + // Performs conversion returning a bool instead of throwing exception on + // conversion error. This method may still throw in case of memory allocation + // error. + auto convert(basic_string_view s, + to_utf8_error_policy policy = to_utf8_error_policy::abort) + -> bool { + if (!convert(buffer_, s, policy)) return false; + buffer_.push_back(0); + return true; + } + static auto convert(Buffer& buf, basic_string_view s, + to_utf8_error_policy policy = to_utf8_error_policy::abort) + -> bool { + for (auto p = s.begin(); p != s.end(); ++p) { + uint32_t c = static_cast(*p); + if (sizeof(WChar) == 2 && c >= 0xd800 && c <= 0xdfff) { + // Handle a surrogate pair. + ++p; + if (p == s.end() || (c & 0xfc00) != 0xd800 || (*p & 0xfc00) != 0xdc00) { + if (policy == to_utf8_error_policy::abort) return false; + buf.append(string_view("\xEF\xBF\xBD")); + --p; + continue; + } + c = (c << 10) + static_cast(*p) - 0x35fdc00; + } + if (c < 0x80) { + buf.push_back(static_cast(c)); + } else if (c < 0x800) { + buf.push_back(static_cast(0xc0 | (c >> 6))); + buf.push_back(static_cast(0x80 | (c & 0x3f))); + } else if ((c >= 0x800 && c <= 0xd7ff) || (c >= 0xe000 && c <= 0xffff)) { + buf.push_back(static_cast(0xe0 | (c >> 12))); + buf.push_back(static_cast(0x80 | ((c & 0xfff) >> 6))); + buf.push_back(static_cast(0x80 | (c & 0x3f))); + } else if (c >= 0x10000 && c <= 0x10ffff) { + buf.push_back(static_cast(0xf0 | (c >> 18))); + buf.push_back(static_cast(0x80 | ((c & 0x3ffff) >> 12))); + buf.push_back(static_cast(0x80 | ((c & 0xfff) >> 6))); + buf.push_back(static_cast(0x80 | (c & 0x3f))); + } else { + return false; + } + } + return true; + } }; -FMT_API void format_windows_error(fmt::internal::buffer& out, - int error_code, - fmt::string_view message) FMT_NOEXCEPT; +// Computes 128-bit result of multiplication of two 64-bit unsigned integers. +FMT_INLINE auto umul128(uint64_t x, uint64_t y) noexcept -> uint128_fallback { +#if FMT_USE_INT128 + auto p = static_cast(x) * static_cast(y); + return {static_cast(p >> 64), static_cast(p)}; +#elif defined(_MSC_VER) && defined(_M_X64) + auto hi = uint64_t(); + auto lo = _umul128(x, y, &hi); + return {hi, lo}; +#else + const uint64_t mask = static_cast(max_value()); + + uint64_t a = x >> 32; + uint64_t b = x & mask; + uint64_t c = y >> 32; + uint64_t d = y & mask; + + uint64_t ac = a * c; + uint64_t bc = b * c; + uint64_t ad = a * d; + uint64_t bd = b * d; + + uint64_t intermediate = (bd >> 32) + (ad & mask) + (bc & mask); + + return {ac + (intermediate >> 32) + (ad >> 32) + (bc >> 32), + (intermediate << 32) + (bd & mask)}; +#endif +} + +namespace dragonbox { +// Computes floor(log10(pow(2, e))) for e in [-2620, 2620] using the method from +// https://fmt.dev/papers/Dragonbox.pdf#page=28, section 6.1. +inline auto floor_log10_pow2(int e) noexcept -> int { + FMT_ASSERT(e <= 2620 && e >= -2620, "too large exponent"); + static_assert((-1 >> 1) == -1, "right shift is not arithmetic"); + return (e * 315653) >> 20; +} + +inline auto floor_log2_pow10(int e) noexcept -> int { + FMT_ASSERT(e <= 1233 && e >= -1233, "too large exponent"); + return (e * 1741647) >> 19; +} + +// Computes upper 64 bits of multiplication of two 64-bit unsigned integers. +inline auto umul128_upper64(uint64_t x, uint64_t y) noexcept -> uint64_t { +#if FMT_USE_INT128 + auto p = static_cast(x) * static_cast(y); + return static_cast(p >> 64); +#elif defined(_MSC_VER) && defined(_M_X64) + return __umulh(x, y); +#else + return umul128(x, y).high(); #endif +} -template struct null {}; +// Computes upper 128 bits of multiplication of a 64-bit unsigned integer and a +// 128-bit unsigned integer. +inline auto umul192_upper128(uint64_t x, uint128_fallback y) noexcept + -> uint128_fallback { + uint128_fallback r = umul128(x, y.high()); + r += umul128_upper64(x, y.low()); + return r; +} -// Workaround an array initialization issue in gcc 4.8. -template struct fill_t { - private: - Char data_[6]; +FMT_API auto get_cached_power(int k) noexcept -> uint128_fallback; + +// Type-specific information that Dragonbox uses. +template struct float_info; + +template <> struct float_info { + using carrier_uint = uint32_t; + static const int exponent_bits = 8; + static const int kappa = 1; + static const int big_divisor = 100; + static const int small_divisor = 10; + static const int min_k = -31; + static const int max_k = 46; + static const int shorter_interval_tie_lower_threshold = -35; + static const int shorter_interval_tie_upper_threshold = -35; +}; - public: - FMT_CONSTEXPR Char& operator[](size_t index) { return data_[index]; } - FMT_CONSTEXPR const Char& operator[](size_t index) const { - return data_[index]; - } +template <> struct float_info { + using carrier_uint = uint64_t; + static const int exponent_bits = 11; + static const int kappa = 2; + static const int big_divisor = 1000; + static const int small_divisor = 100; + static const int min_k = -292; + static const int max_k = 341; + static const int shorter_interval_tie_lower_threshold = -77; + static const int shorter_interval_tie_upper_threshold = -77; +}; - static FMT_CONSTEXPR fill_t make() { - auto fill = fill_t(); - fill[0] = Char(' '); - return fill; - } +// An 80- or 128-bit floating point number. +template +struct float_info::digits == 64 || + std::numeric_limits::digits == 113 || + is_float128::value>> { + using carrier_uint = detail::uint128_t; + static const int exponent_bits = 15; +}; + +// A double-double floating point number. +template +struct float_info::value>> { + using carrier_uint = detail::uint128_t; }; -} // namespace internal - -// We cannot use enum classes as bit fields because of a gcc bug -// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61414. -namespace align { -enum type { none, left, right, center, numeric }; -} -using align_t = align::type; - -namespace sign { -enum type { none, minus, plus, space }; -} -using sign_t = sign::type; - -// Format specifiers for built-in and string types. -template struct basic_format_specs { - int width; - int precision; - char type; - align_t align : 4; - sign_t sign : 3; - bool alt : 1; // Alternate form ('#'). - internal::fill_t fill; - - constexpr basic_format_specs() - : width(0), - precision(-1), - type(0), - align(align::none), - sign(sign::none), - alt(false), - fill(internal::fill_t::make()) {} + +template struct decimal_fp { + using significand_type = typename float_info::carrier_uint; + significand_type significand; + int exponent; }; -using format_specs = basic_format_specs; +template FMT_API auto to_decimal(T x) noexcept -> decimal_fp; +} // namespace dragonbox + +// Returns true iff Float has the implicit bit which is not stored. +template constexpr auto has_implicit_bit() -> bool { + // An 80-bit FP number has a 64-bit significand an no implicit bit. + return std::numeric_limits::digits != 64; +} + +// Returns the number of significand bits stored in Float. The implicit bit is +// not counted since it is not stored. +template constexpr auto num_significand_bits() -> int { + // std::numeric_limits may not support __float128. + return is_float128() ? 112 + : (std::numeric_limits::digits - + (has_implicit_bit() ? 1 : 0)); +} + +template +constexpr auto exponent_mask() -> + typename dragonbox::float_info::carrier_uint { + using float_uint = typename dragonbox::float_info::carrier_uint; + return ((float_uint(1) << dragonbox::float_info::exponent_bits) - 1) + << num_significand_bits(); +} +template constexpr auto exponent_bias() -> int { + // std::numeric_limits may not support __float128. + return is_float128() ? 16383 + : std::numeric_limits::max_exponent - 1; +} -namespace internal { +FMT_CONSTEXPR inline auto compute_exp_size(int exp) -> int { + auto prefix_size = 2; // sign + 'e' + auto abs_exp = exp >= 0 ? exp : -exp; + if (abs_exp < 100) return prefix_size + 2; + return prefix_size + (abs_exp >= 1000 ? 4 : 3); +} // Writes the exponent exp in the form "[+-]d{2,3}" to buffer. -template It write_exponent(int exp, It it) { - FMT_ASSERT(-1000 < exp && exp < 1000, "exponent out of range"); +template +FMT_CONSTEXPR auto write_exponent(int exp, OutputIt out) -> OutputIt { + FMT_ASSERT(-10000 < exp && exp < 10000, "exponent out of range"); if (exp < 0) { - *it++ = static_cast('-'); + *out++ = static_cast('-'); exp = -exp; } else { - *it++ = static_cast('+'); - } - if (exp >= 100) { - *it++ = static_cast(static_cast('0' + exp / 100)); - exp %= 100; - } - const char* d = data::digits + exp * 2; - *it++ = static_cast(d[0]); - *it++ = static_cast(d[1]); - return it; + *out++ = static_cast('+'); + } + auto uexp = static_cast(exp); + if (is_constant_evaluated()) { + if (uexp < 10) *out++ = '0'; + return format_decimal(out, uexp, count_digits(uexp)); + } + if (uexp >= 100u) { + const char* top = digits2(uexp / 100); + if (uexp >= 1000u) *out++ = static_cast(top[0]); + *out++ = static_cast(top[1]); + uexp %= 100; + } + const char* d = digits2(uexp); + *out++ = static_cast(d[0]); + *out++ = static_cast(d[1]); + return out; } -struct gen_digits_params { - int num_digits; - bool fixed; - bool upper; - bool trailing_zeros; +// A floating-point number f * pow(2, e) where F is an unsigned type. +template struct basic_fp { + F f; + int e; + + static constexpr int num_significand_bits = + static_cast(sizeof(F) * num_bits()); + + constexpr basic_fp() : f(0), e(0) {} + constexpr basic_fp(uint64_t f_val, int e_val) : f(f_val), e(e_val) {} + + // Constructs fp from an IEEE754 floating-point number. + template FMT_CONSTEXPR basic_fp(Float n) { assign(n); } + + // Assigns n to this and return true iff predecessor is closer than successor. + template ::value)> + FMT_CONSTEXPR auto assign(Float n) -> bool { + static_assert(std::numeric_limits::digits <= 113, "unsupported FP"); + // Assume Float is in the format [sign][exponent][significand]. + using carrier_uint = typename dragonbox::float_info::carrier_uint; + const auto num_float_significand_bits = + detail::num_significand_bits(); + const auto implicit_bit = carrier_uint(1) << num_float_significand_bits; + const auto significand_mask = implicit_bit - 1; + auto u = bit_cast(n); + f = static_cast(u & significand_mask); + auto biased_e = static_cast((u & exponent_mask()) >> + num_float_significand_bits); + // The predecessor is closer if n is a normalized power of 2 (f == 0) + // other than the smallest normalized number (biased_e > 1). + auto is_predecessor_closer = f == 0 && biased_e > 1; + if (biased_e == 0) + biased_e = 1; // Subnormals use biased exponent 1 (min exponent). + else if (has_implicit_bit()) + f += static_cast(implicit_bit); + e = biased_e - exponent_bias() - num_float_significand_bits; + if (!has_implicit_bit()) ++e; + return is_predecessor_closer; + } + + template ::value)> + FMT_CONSTEXPR auto assign(Float n) -> bool { + static_assert(std::numeric_limits::is_iec559, "unsupported FP"); + return assign(static_cast(n)); + } }; -// The number is given as v = digits * pow(10, exp). -template -It grisu_prettify(const char* digits, int size, int exp, It it, - gen_digits_params params, Char decimal_point) { - // pow(10, full_exp - 1) <= v <= pow(10, full_exp). - int full_exp = size + exp; - if (!params.fixed) { - // Insert a decimal point after the first digit and add an exponent. - *it++ = static_cast(*digits); - if (size > 1) *it++ = decimal_point; - exp += size - 1; - it = copy_str(digits + 1, digits + size, it); - if (size < params.num_digits) - it = std::fill_n(it, params.num_digits - size, static_cast('0')); - *it++ = static_cast(params.upper ? 'E' : 'e'); - return write_exponent(exp, it); - } - if (size <= full_exp) { - // 1234e7 -> 12340000000[.0+] - it = copy_str(digits, digits + size, it); - it = std::fill_n(it, full_exp - size, static_cast('0')); - int num_zeros = (std::max)(params.num_digits - full_exp, 1); - if (params.trailing_zeros) { - *it++ = decimal_point; -#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION - if (num_zeros > 1000) - throw std::runtime_error("fuzz mode - avoiding excessive cpu use"); +using fp = basic_fp; + +// Normalizes the value converted from double and multiplied by (1 << SHIFT). +template +FMT_CONSTEXPR auto normalize(basic_fp value) -> basic_fp { + // Handle subnormals. + const auto implicit_bit = F(1) << num_significand_bits(); + const auto shifted_implicit_bit = implicit_bit << SHIFT; + while ((value.f & shifted_implicit_bit) == 0) { + value.f <<= 1; + --value.e; + } + // Subtract 1 to account for hidden bit. + const auto offset = basic_fp::num_significand_bits - + num_significand_bits() - SHIFT - 1; + value.f <<= offset; + value.e -= offset; + return value; +} + +// Computes lhs * rhs / pow(2, 64) rounded to nearest with half-up tie breaking. +FMT_CONSTEXPR inline auto multiply(uint64_t lhs, uint64_t rhs) -> uint64_t { +#if FMT_USE_INT128 + auto product = static_cast<__uint128_t>(lhs) * rhs; + auto f = static_cast(product >> 64); + return (static_cast(product) & (1ULL << 63)) != 0 ? f + 1 : f; +#else + // Multiply 32-bit parts of significands. + uint64_t mask = (1ULL << 32) - 1; + uint64_t a = lhs >> 32, b = lhs & mask; + uint64_t c = rhs >> 32, d = rhs & mask; + uint64_t ac = a * c, bc = b * c, ad = a * d, bd = b * d; + // Compute mid 64-bit of result and round. + uint64_t mid = (bd >> 32) + (ad & mask) + (bc & mask) + (1U << 31); + return ac + (ad >> 32) + (bc >> 32) + (mid >> 32); #endif - it = std::fill_n(it, num_zeros, static_cast('0')); - } - } else if (full_exp > 0) { - // 1234e-2 -> 12.34[0+] - it = copy_str(digits, digits + full_exp, it); - if (!params.trailing_zeros) { - // Remove trailing zeros. - while (size > full_exp && digits[size - 1] == '0') --size; - if (size != full_exp) *it++ = decimal_point; - return copy_str(digits + full_exp, digits + size, it); - } - *it++ = decimal_point; - it = copy_str(digits + full_exp, digits + size, it); - if (params.num_digits > size) { - // Add trailing zeros. - int num_zeros = params.num_digits - size; - it = std::fill_n(it, num_zeros, static_cast('0')); - } - } else { - // 1234e-6 -> 0.001234 - *it++ = static_cast('0'); - int num_zeros = -full_exp; - if (params.num_digits >= 0 && params.num_digits < num_zeros) - num_zeros = params.num_digits; - if (!params.trailing_zeros) - while (size > 0 && digits[size - 1] == '0') --size; - if (num_zeros != 0 || size != 0) { - *it++ = decimal_point; - it = std::fill_n(it, num_zeros, static_cast('0')); - it = copy_str(digits, digits + size, it); - } +} + +FMT_CONSTEXPR inline auto operator*(fp x, fp y) -> fp { + return {multiply(x.f, y.f), x.e + y.e + 64}; +} + +template () == num_bits()> +using convert_float_result = + conditional_t::value || doublish, double, T>; + +template +constexpr auto convert_float(T value) -> convert_float_result { + return static_cast>(value); +} + +template +auto select(T true_value, F) -> T { + return true_value; +} +template +auto select(T, F false_value) -> F { + return false_value; +} + +template +FMT_CONSTEXPR FMT_NOINLINE auto fill(OutputIt it, size_t n, + const basic_specs& specs) -> OutputIt { + auto fill_size = specs.fill_size(); + if (fill_size == 1) return detail::fill_n(it, n, specs.fill_unit()); + if (const Char* data = specs.fill()) { + for (size_t i = 0; i < n; ++i) it = copy(data, data + fill_size, it); } return it; } -namespace grisu_options { -enum { fixed = 1, grisu3 = 2 }; +// Writes the output of f, padded according to format specifications in specs. +// size: output size in code units. +// width: output display width in (terminal) column positions. +template +FMT_CONSTEXPR auto write_padded(OutputIt out, const format_specs& specs, + size_t size, size_t width, F&& f) -> OutputIt { + static_assert(default_align == align::left || default_align == align::right, + ""); + unsigned spec_width = to_unsigned(specs.width); + size_t padding = spec_width > width ? spec_width - width : 0; + // Shifts are encoded as string literals because static constexpr is not + // supported in constexpr functions. + auto* shifts = + default_align == align::left ? "\x1f\x1f\x00\x01" : "\x00\x1f\x00\x01"; + size_t left_padding = padding >> shifts[static_cast(specs.align())]; + size_t right_padding = padding - left_padding; + auto it = reserve(out, size + padding * specs.fill_size()); + if (left_padding != 0) it = fill(it, left_padding, specs); + it = f(it); + if (right_padding != 0) it = fill(it, right_padding, specs); + return base_iterator(out, it); } -// Formats value using the Grisu algorithm: -// https://www.cs.tufts.edu/~nr/cs257/archive/florian-loitsch/printf.pdf -template -FMT_API bool grisu_format(Double, buffer&, int, unsigned, int&); -template -inline bool grisu_format(Double, buffer&, int, unsigned, int&) { - return false; +template +constexpr auto write_padded(OutputIt out, const format_specs& specs, + size_t size, F&& f) -> OutputIt { + return write_padded(out, specs, size, size, f); } -struct sprintf_specs { - int precision; - char type; - bool alt : 1; +template +FMT_CONSTEXPR auto write_bytes(OutputIt out, string_view bytes, + const format_specs& specs = {}) -> OutputIt { + return write_padded( + out, specs, bytes.size(), [bytes](reserve_iterator it) { + const char* data = bytes.data(); + return copy(data, data + bytes.size(), it); + }); +} + +template +auto write_ptr(OutputIt out, UIntPtr value, const format_specs* specs) + -> OutputIt { + int num_digits = count_digits<4>(value); + auto size = to_unsigned(num_digits) + size_t(2); + auto write = [=](reserve_iterator it) { + *it++ = static_cast('0'); + *it++ = static_cast('x'); + return format_base2e(4, it, value, num_digits); + }; + return specs ? write_padded(out, *specs, size, write) + : base_iterator(out, write(reserve(out, size))); +} + +// Returns true iff the code point cp is printable. +FMT_API auto is_printable(uint32_t cp) -> bool; - template - constexpr sprintf_specs(basic_format_specs specs) - : precision(specs.precision), type(specs.type), alt(specs.alt) {} +inline auto needs_escape(uint32_t cp) -> bool { + if (cp < 0x20 || cp == 0x7f || cp == '"' || cp == '\\') return true; + if (const_check(FMT_OPTIMIZE_SIZE > 1)) return false; + return !is_printable(cp); +} - constexpr bool has_precision() const { return precision >= 0; } +template struct find_escape_result { + const Char* begin; + const Char* end; + uint32_t cp; }; -template -char* sprintf_format(Double, internal::buffer&, sprintf_specs); +template +auto find_escape(const Char* begin, const Char* end) + -> find_escape_result { + for (; begin != end; ++begin) { + uint32_t cp = static_cast>(*begin); + if (const_check(sizeof(Char) == 1) && cp >= 0x80) continue; + if (needs_escape(cp)) return {begin, begin + 1, cp}; + } + return {begin, nullptr, 0}; +} + +inline auto find_escape(const char* begin, const char* end) + -> find_escape_result { + if (const_check(!use_utf8)) return find_escape(begin, end); + auto result = find_escape_result{end, nullptr, 0}; + for_each_codepoint(string_view(begin, to_unsigned(end - begin)), + [&](uint32_t cp, string_view sv) { + if (needs_escape(cp)) { + result = {sv.begin(), sv.end(), cp}; + return false; + } + return true; + }); + return result; +} -template -FMT_CONSTEXPR void handle_int_type_spec(char spec, Handler&& handler) { - switch (spec) { - case 0: - case 'd': - handler.on_dec(); - break; - case 'x': - case 'X': - handler.on_hex(); - break; - case 'b': - case 'B': - handler.on_bin(); - break; - case 'o': - handler.on_oct(); - break; - case 'n': - handler.on_num(); - break; - default: - handler.on_error(); - } +template +auto write_codepoint(OutputIt out, char prefix, uint32_t cp) -> OutputIt { + *out++ = static_cast('\\'); + *out++ = static_cast(prefix); + Char buf[width]; + fill_n(buf, width, static_cast('0')); + format_base2e(4, buf, cp, width); + return copy(buf, buf + width, out); } -template -FMT_CONSTEXPR void handle_float_type_spec(char spec, Handler&& handler) { - switch (spec) { - case 0: - case 'g': - case 'G': - handler.on_general(); - break; - case 'e': - case 'E': - handler.on_exp(); - break; - case 'f': - case 'F': - handler.on_fixed(); +template +auto write_escaped_cp(OutputIt out, const find_escape_result& escape) + -> OutputIt { + auto c = static_cast(escape.cp); + switch (escape.cp) { + case '\n': + *out++ = static_cast('\\'); + c = static_cast('n'); break; - case '%': - handler.on_percent(); + case '\r': + *out++ = static_cast('\\'); + c = static_cast('r'); break; - case 'a': - case 'A': - handler.on_hex(); - break; - case 'n': - handler.on_num(); + case '\t': + *out++ = static_cast('\\'); + c = static_cast('t'); break; + case '"': FMT_FALLTHROUGH; + case '\'': FMT_FALLTHROUGH; + case '\\': *out++ = static_cast('\\'); break; default: - handler.on_error(); - break; + if (escape.cp < 0x100) return write_codepoint<2, Char>(out, 'x', escape.cp); + if (escape.cp < 0x10000) + return write_codepoint<4, Char>(out, 'u', escape.cp); + if (escape.cp < 0x110000) + return write_codepoint<8, Char>(out, 'U', escape.cp); + for (Char escape_char : basic_string_view( + escape.begin, to_unsigned(escape.end - escape.begin))) { + out = write_codepoint<2, Char>(out, 'x', + static_cast(escape_char) & 0xFF); + } + return out; } + *out++ = c; + return out; } -template -FMT_CONSTEXPR void handle_char_specs(const basic_format_specs* specs, - Handler&& handler) { - if (!specs) return handler.on_char(); - if (specs->type && specs->type != 'c') return handler.on_int(); - if (specs->align == align::numeric || specs->sign != sign::none || specs->alt) - handler.on_error("invalid format specifier for char"); - handler.on_char(); -} - -template -FMT_CONSTEXPR void handle_cstring_type_spec(Char spec, Handler&& handler) { - if (spec == 0 || spec == 's') - handler.on_string(); - else if (spec == 'p') - handler.on_pointer(); - else - handler.on_error("invalid type specifier"); +template +auto write_escaped_string(OutputIt out, basic_string_view str) + -> OutputIt { + *out++ = static_cast('"'); + auto begin = str.begin(), end = str.end(); + do { + auto escape = find_escape(begin, end); + out = copy(begin, escape.begin, out); + begin = escape.end; + if (!begin) break; + out = write_escaped_cp(out, escape); + } while (begin != end); + *out++ = static_cast('"'); + return out; } -template -FMT_CONSTEXPR void check_string_type_spec(Char spec, ErrorHandler&& eh) { - if (spec != 0 && spec != 's') eh.on_error("invalid type specifier"); +template +auto write_escaped_char(OutputIt out, Char v) -> OutputIt { + Char v_array[1] = {v}; + *out++ = static_cast('\''); + if ((needs_escape(static_cast(v)) && v != static_cast('"')) || + v == static_cast('\'')) { + out = write_escaped_cp(out, + find_escape_result{v_array, v_array + 1, + static_cast(v)}); + } else { + *out++ = v; + } + *out++ = static_cast('\''); + return out; } -template -FMT_CONSTEXPR void check_pointer_type_spec(Char spec, ErrorHandler&& eh) { - if (spec != 0 && spec != 'p') eh.on_error("invalid type specifier"); +template +FMT_CONSTEXPR auto write_char(OutputIt out, Char value, + const format_specs& specs) -> OutputIt { + bool is_debug = specs.type() == presentation_type::debug; + return write_padded(out, specs, 1, [=](reserve_iterator it) { + if (is_debug) return write_escaped_char(it, value); + *it++ = value; + return it; + }); } -template class int_type_checker : private ErrorHandler { - public: - FMT_CONSTEXPR explicit int_type_checker(ErrorHandler eh) : ErrorHandler(eh) {} +template class digit_grouping { + private: + std::string grouping_; + std::basic_string thousands_sep_; - FMT_CONSTEXPR void on_dec() {} - FMT_CONSTEXPR void on_hex() {} - FMT_CONSTEXPR void on_bin() {} - FMT_CONSTEXPR void on_oct() {} - FMT_CONSTEXPR void on_num() {} + struct next_state { + std::string::const_iterator group; + int pos; + }; + auto initial_state() const -> next_state { return {grouping_.begin(), 0}; } - FMT_CONSTEXPR void on_error() { - ErrorHandler::on_error("invalid type specifier"); + // Returns the next digit group separator position. + auto next(next_state& state) const -> int { + if (thousands_sep_.empty()) return max_value(); + if (state.group == grouping_.end()) return state.pos += grouping_.back(); + if (*state.group <= 0 || *state.group == max_value()) + return max_value(); + state.pos += *state.group++; + return state.pos; } -}; -template -class float_type_checker : private ErrorHandler { public: - FMT_CONSTEXPR explicit float_type_checker(ErrorHandler eh) - : ErrorHandler(eh) {} - - FMT_CONSTEXPR void on_general() {} - FMT_CONSTEXPR void on_exp() {} - FMT_CONSTEXPR void on_fixed() {} - FMT_CONSTEXPR void on_percent() {} - FMT_CONSTEXPR void on_hex() {} - FMT_CONSTEXPR void on_num() {} - - FMT_CONSTEXPR void on_error() { - ErrorHandler::on_error("invalid type specifier"); + explicit digit_grouping(locale_ref loc, bool localized = true) { + if (!localized) return; + auto sep = thousands_sep(loc); + grouping_ = sep.grouping; + if (sep.thousands_sep) thousands_sep_.assign(1, sep.thousands_sep); + } + digit_grouping(std::string grouping, std::basic_string sep) + : grouping_(std::move(grouping)), thousands_sep_(std::move(sep)) {} + + auto has_separator() const -> bool { return !thousands_sep_.empty(); } + + auto count_separators(int num_digits) const -> int { + int count = 0; + auto state = initial_state(); + while (num_digits > next(state)) ++count; + return count; + } + + // Applies grouping to digits and writes the output to out. + template + auto apply(Out out, basic_string_view digits) const -> Out { + auto num_digits = static_cast(digits.size()); + auto separators = basic_memory_buffer(); + separators.push_back(0); + auto state = initial_state(); + while (int i = next(state)) { + if (i >= num_digits) break; + separators.push_back(i); + } + for (int i = 0, sep_index = static_cast(separators.size() - 1); + i < num_digits; ++i) { + if (num_digits - i == separators[sep_index]) { + out = copy(thousands_sep_.data(), + thousands_sep_.data() + thousands_sep_.size(), out); + --sep_index; + } + *out++ = static_cast(digits[to_unsigned(i)]); + } + return out; } }; -template -class char_specs_checker : public ErrorHandler { - private: - char type_; - - public: - FMT_CONSTEXPR char_specs_checker(char type, ErrorHandler eh) - : ErrorHandler(eh), type_(type) {} +FMT_CONSTEXPR inline void prefix_append(unsigned& prefix, unsigned value) { + prefix |= prefix != 0 ? value << 8 : value; + prefix += (1u + (value > 0xff ? 1 : 0)) << 24; +} - FMT_CONSTEXPR void on_int() { - handle_int_type_spec(type_, int_type_checker(*this)); - } - FMT_CONSTEXPR void on_char() {} -}; +// Writes a decimal integer with digit grouping. +template +auto write_int(OutputIt out, UInt value, unsigned prefix, + const format_specs& specs, const digit_grouping& grouping) + -> OutputIt { + static_assert(std::is_same, UInt>::value, ""); + int num_digits = 0; + auto buffer = memory_buffer(); + switch (specs.type()) { + default: FMT_ASSERT(false, ""); FMT_FALLTHROUGH; + case presentation_type::none: + case presentation_type::dec: + num_digits = count_digits(value); + format_decimal(appender(buffer), value, num_digits); + break; + case presentation_type::hex: + if (specs.alt()) + prefix_append(prefix, unsigned(specs.upper() ? 'X' : 'x') << 8 | '0'); + num_digits = count_digits<4>(value); + format_base2e(4, appender(buffer), value, num_digits, specs.upper()); + break; + case presentation_type::oct: + num_digits = count_digits<3>(value); + // Octal prefix '0' is counted as a digit, so only add it if precision + // is not greater than the number of digits. + if (specs.alt() && specs.precision <= num_digits && value != 0) + prefix_append(prefix, '0'); + format_base2e(3, appender(buffer), value, num_digits); + break; + case presentation_type::bin: + if (specs.alt()) + prefix_append(prefix, unsigned(specs.upper() ? 'B' : 'b') << 8 | '0'); + num_digits = count_digits<1>(value); + format_base2e(1, appender(buffer), value, num_digits); + break; + case presentation_type::chr: + return write_char(out, static_cast(value), specs); + } + + unsigned size = (prefix != 0 ? prefix >> 24 : 0) + to_unsigned(num_digits) + + to_unsigned(grouping.count_separators(num_digits)); + return write_padded( + out, specs, size, size, [&](reserve_iterator it) { + for (unsigned p = prefix & 0xffffff; p != 0; p >>= 8) + *it++ = static_cast(p & 0xff); + return grouping.apply(it, string_view(buffer.data(), buffer.size())); + }); +} -template -class cstring_type_checker : public ErrorHandler { - public: - FMT_CONSTEXPR explicit cstring_type_checker(ErrorHandler eh) - : ErrorHandler(eh) {} +#if FMT_USE_LOCALE +// Writes a localized value. +FMT_API auto write_loc(appender out, loc_value value, const format_specs& specs, + locale_ref loc) -> bool; +auto write_loc(basic_appender out, loc_value value, + const format_specs& specs, locale_ref loc) -> bool; +#endif +template +inline auto write_loc(OutputIt, const loc_value&, const format_specs&, + locale_ref) -> bool { + return false; +} - FMT_CONSTEXPR void on_string() {} - FMT_CONSTEXPR void on_pointer() {} +template struct write_int_arg { + UInt abs_value; + unsigned prefix; }; -template -void arg_map::init(const basic_format_args& args) { - if (map_) return; - map_ = new entry[internal::to_unsigned(args.max_size())]; - if (args.is_packed()) { - for (int i = 0;; ++i) { - internal::type arg_type = args.type(i); - if (arg_type == internal::none_type) return; - if (arg_type == internal::named_arg_type) push_back(args.values_[i]); - } - } - for (int i = 0, n = args.max_size(); i < n; ++i) { - auto type = args.args_[i].type_; - if (type == internal::named_arg_type) push_back(args.args_[i].value_); +template +FMT_CONSTEXPR auto make_write_int_arg(T value, sign s) + -> write_int_arg> { + auto prefix = 0u; + auto abs_value = static_cast>(value); + if (is_negative(value)) { + prefix = 0x01000000 | '-'; + abs_value = 0 - abs_value; + } else { + constexpr unsigned prefixes[4] = {0, 0, 0x1000000u | '+', 0x1000000u | ' '}; + prefix = prefixes[static_cast(s)]; } + return {abs_value, prefix}; } -// This template provides operations for formatting and writing data into a -// character range. -template class basic_writer { - public: - using char_type = typename Range::value_type; - using iterator = typename Range::iterator; - using format_specs = basic_format_specs; +template struct loc_writer { + basic_appender out; + const format_specs& specs; + std::basic_string sep; + std::string grouping; + std::basic_string decimal_point; - private: - iterator out_; // Output iterator. - internal::locale_ref locale_; - - // Attempts to reserve space for n extra characters in the output range. - // Returns a pointer to the reserved range or a reference to out_. - auto reserve(std::size_t n) -> decltype(internal::reserve(out_, n)) { - return internal::reserve(out_, n); - } - - template struct padded_int_writer { - size_t size_; - string_view prefix; - char_type fill; - std::size_t padding; - F f; - - size_t size() const { return size_; } - size_t width() const { return size_; } - - template void operator()(It&& it) const { - if (prefix.size() != 0) - it = internal::copy_str(prefix.begin(), prefix.end(), it); - it = std::fill_n(it, padding, fill); - f(it); - } - }; + template ::value)> + auto operator()(T value) -> bool { + auto arg = make_write_int_arg(value, specs.sign()); + write_int(out, static_cast>(arg.abs_value), arg.prefix, + specs, digit_grouping(grouping, sep)); + return true; + } - // Writes an integer in the format - // - // where are written by f(it). - template - void write_int(int num_digits, string_view prefix, format_specs specs, F f) { - std::size_t size = prefix.size() + internal::to_unsigned(num_digits); - char_type fill = specs.fill[0]; - std::size_t padding = 0; - if (specs.align == align::numeric) { - auto unsiged_width = internal::to_unsigned(specs.width); - if (unsiged_width > size) { - padding = unsiged_width - size; - size = unsiged_width; + template ::value)> + auto operator()(T) -> bool { + return false; + } +}; + +// Size and padding computation separate from write_int to avoid template bloat. +struct size_padding { + unsigned size; + unsigned padding; + + FMT_CONSTEXPR size_padding(int num_digits, unsigned prefix, + const format_specs& specs) + : size((prefix >> 24) + to_unsigned(num_digits)), padding(0) { + if (specs.align() == align::numeric) { + auto width = to_unsigned(specs.width); + if (width > size) { + padding = width - size; + size = width; } } else if (specs.precision > num_digits) { - size = prefix.size() + internal::to_unsigned(specs.precision); - padding = internal::to_unsigned(specs.precision - num_digits); - fill = static_cast('0'); - } - if (specs.align == align::none) specs.align = align::right; - write_padded(specs, padded_int_writer{size, prefix, fill, padding, f}); - } - - // Writes a decimal integer. - template void write_decimal(Int value) { - auto abs_value = static_cast>(value); - bool is_negative = internal::is_negative(value); - if (is_negative) abs_value = 0 - abs_value; - int num_digits = internal::count_digits(abs_value); - auto&& it = - reserve((is_negative ? 1 : 0) + static_cast(num_digits)); - if (is_negative) *it++ = static_cast('-'); - it = internal::format_decimal(it, abs_value, num_digits); - } - - // The handle_int_type_spec handler that writes an integer. - template struct int_writer { - using unsigned_type = uint32_or_64_t; - - basic_writer& writer; - const Specs& specs; - unsigned_type abs_value; - char prefix[4]; - unsigned prefix_size; - - string_view get_prefix() const { return string_view(prefix, prefix_size); } - - int_writer(basic_writer& w, Int value, const Specs& s) - : writer(w), - specs(s), - abs_value(static_cast(value)), - prefix_size(0) { - if (internal::is_negative(value)) { - prefix[0] = '-'; - ++prefix_size; - abs_value = 0 - abs_value; - } else if (specs.sign != sign::none && specs.sign != sign::minus) { - prefix[0] = specs.sign == sign::plus ? '+' : ' '; - ++prefix_size; - } + size = (prefix >> 24) + to_unsigned(specs.precision); + padding = to_unsigned(specs.precision - num_digits); } + } +}; - struct dec_writer { - unsigned_type abs_value; - int num_digits; - - template void operator()(It&& it) const { - it = internal::format_decimal(it, abs_value, num_digits); - } - }; - - void on_dec() { - int num_digits = internal::count_digits(abs_value); - writer.write_int(num_digits, get_prefix(), specs, - dec_writer{abs_value, num_digits}); - } +template +FMT_CONSTEXPR FMT_INLINE auto write_int(OutputIt out, write_int_arg arg, + const format_specs& specs) -> OutputIt { + static_assert(std::is_same>::value, ""); + + constexpr size_t buffer_size = num_bits(); + char buffer[buffer_size]; + if (is_constant_evaluated()) fill_n(buffer, buffer_size, '\0'); + const char* begin = nullptr; + const char* end = buffer + buffer_size; + + auto abs_value = arg.abs_value; + auto prefix = arg.prefix; + switch (specs.type()) { + default: FMT_ASSERT(false, ""); FMT_FALLTHROUGH; + case presentation_type::none: + case presentation_type::dec: + begin = do_format_decimal(buffer, abs_value, buffer_size); + break; + case presentation_type::hex: + begin = do_format_base2e(4, buffer, abs_value, buffer_size, specs.upper()); + if (specs.alt()) + prefix_append(prefix, unsigned(specs.upper() ? 'X' : 'x') << 8 | '0'); + break; + case presentation_type::oct: { + begin = do_format_base2e(3, buffer, abs_value, buffer_size); + // Octal prefix '0' is counted as a digit, so only add it if precision + // is not greater than the number of digits. + auto num_digits = end - begin; + if (specs.alt() && specs.precision <= num_digits && abs_value != 0) + prefix_append(prefix, '0'); + break; + } + case presentation_type::bin: + begin = do_format_base2e(1, buffer, abs_value, buffer_size); + if (specs.alt()) + prefix_append(prefix, unsigned(specs.upper() ? 'B' : 'b') << 8 | '0'); + break; + case presentation_type::chr: + return write_char(out, static_cast(abs_value), specs); + } - struct hex_writer { - int_writer& self; - int num_digits; + // Write an integer in the format + // + // prefix contains chars in three lower bytes and the size in the fourth byte. + int num_digits = static_cast(end - begin); + // Slightly faster check for specs.width == 0 && specs.precision == -1. + if ((specs.width | (specs.precision + 1)) == 0) { + auto it = reserve(out, to_unsigned(num_digits) + (prefix >> 24)); + for (unsigned p = prefix & 0xffffff; p != 0; p >>= 8) + *it++ = static_cast(p & 0xff); + return base_iterator(out, copy(begin, end, it)); + } + auto sp = size_padding(num_digits, prefix, specs); + unsigned padding = sp.padding; + return write_padded( + out, specs, sp.size, [=](reserve_iterator it) { + for (unsigned p = prefix & 0xffffff; p != 0; p >>= 8) + *it++ = static_cast(p & 0xff); + it = detail::fill_n(it, padding, static_cast('0')); + return copy(begin, end, it); + }); +} - template void operator()(It&& it) const { - it = internal::format_uint<4, char_type>(it, self.abs_value, num_digits, - self.specs.type != 'x'); - } - }; +template +FMT_CONSTEXPR FMT_NOINLINE auto write_int_noinline(OutputIt out, + write_int_arg arg, + const format_specs& specs) + -> OutputIt { + return write_int(out, arg, specs); +} - void on_hex() { - if (specs.alt) { - prefix[prefix_size++] = '0'; - prefix[prefix_size++] = specs.type; - } - int num_digits = internal::count_digits<4>(abs_value); - writer.write_int(num_digits, get_prefix(), specs, - hex_writer{*this, num_digits}); - } +template ::value && + !std::is_same::value && + !std::is_same::value)> +FMT_CONSTEXPR FMT_INLINE auto write(basic_appender out, T value, + const format_specs& specs, locale_ref loc) + -> basic_appender { + if (specs.localized() && write_loc(out, value, specs, loc)) return out; + return write_int_noinline(out, make_write_int_arg(value, specs.sign()), + specs); +} - template struct bin_writer { - unsigned_type abs_value; - int num_digits; +// An inlined version of write used in format string compilation. +template ::value && + !std::is_same::value && + !std::is_same::value && + !std::is_same>::value)> +FMT_CONSTEXPR FMT_INLINE auto write(OutputIt out, T value, + const format_specs& specs, locale_ref loc) + -> OutputIt { + if (specs.localized() && write_loc(out, value, specs, loc)) return out; + return write_int(out, make_write_int_arg(value, specs.sign()), specs); +} - template void operator()(It&& it) const { - it = internal::format_uint(it, abs_value, num_digits); - } - }; +template +FMT_CONSTEXPR auto write(OutputIt out, Char value, const format_specs& specs, + locale_ref loc = {}) -> OutputIt { + // char is formatted as unsigned char for consistency across platforms. + using unsigned_type = + conditional_t::value, unsigned char, unsigned>; + return check_char_specs(specs) + ? write_char(out, value, specs) + : write(out, static_cast(value), specs, loc); +} - void on_bin() { - if (specs.alt) { - prefix[prefix_size++] = '0'; - prefix[prefix_size++] = static_cast(specs.type); +template ::value)> +FMT_CONSTEXPR auto write(OutputIt out, basic_string_view s, + const format_specs& specs) -> OutputIt { + bool is_debug = specs.type() == presentation_type::debug; + if (specs.precision < 0 && specs.width == 0) { + auto&& it = reserve(out, s.size()); + return is_debug ? write_escaped_string(it, s) : copy(s, it); + } + + size_t display_width_limit = + specs.precision < 0 ? SIZE_MAX : to_unsigned(specs.precision); + size_t display_width = + !is_debug || specs.precision == 0 ? 0 : 1; // Account for opening '"'. + size_t size = !is_debug || specs.precision == 0 ? 0 : 1; + for_each_codepoint(s, [&](uint32_t cp, string_view sv) { + if (is_debug && needs_escape(cp)) { + counting_buffer buf; + write_escaped_cp(basic_appender(buf), + find_escape_result{sv.begin(), sv.end(), cp}); + // We're reinterpreting bytes as display width. That's okay + // because write_escaped_cp() only writes ASCII characters. + size_t cp_width = buf.count(); + if (display_width + cp_width <= display_width_limit) { + display_width += cp_width; + size += cp_width; + // If this is the end of the string, account for closing '"'. + if (display_width < display_width_limit && sv.end() == s.end()) { + ++display_width; + ++size; + } + return true; } - int num_digits = internal::count_digits<1>(abs_value); - writer.write_int(num_digits, get_prefix(), specs, - bin_writer<1>{abs_value, num_digits}); - } - void on_oct() { - int num_digits = internal::count_digits<3>(abs_value); - if (specs.alt && specs.precision <= num_digits) { - // Octal prefix '0' is counted as a digit, so only add it if precision - // is not greater than the number of digits. - prefix[prefix_size++] = '0'; - } - writer.write_int(num_digits, get_prefix(), specs, - bin_writer<3>{abs_value, num_digits}); + size += display_width_limit - display_width; + display_width = display_width_limit; + return false; } - enum { sep_size = 1 }; - - struct num_writer { - unsigned_type abs_value; - int size; - char_type sep; - - template void operator()(It&& it) const { - basic_string_view s(&sep, sep_size); - // Index of a decimal digit with the least significant digit having - // index 0. - unsigned digit_index = 0; - it = internal::format_decimal( - it, abs_value, size, [s, &digit_index](char_type*& buffer) { - if (++digit_index % 3 != 0) return; - buffer -= s.size(); - std::uninitialized_copy(s.data(), s.data() + s.size(), - internal::make_checked(buffer, s.size())); - }); + size_t cp_width = display_width_of(cp); + if (cp_width + display_width <= display_width_limit) { + display_width += cp_width; + size += sv.size(); + // If this is the end of the string, account for closing '"'. + if (is_debug && display_width < display_width_limit && + sv.end() == s.end()) { + ++display_width; + ++size; } - }; - - void on_num() { - char_type sep = internal::thousands_sep(writer.locale_); - if (!sep) return on_dec(); - int num_digits = internal::count_digits(abs_value); - int size = num_digits + sep_size * ((num_digits - 1) / 3); - writer.write_int(size, get_prefix(), specs, - num_writer{abs_value, size, sep}); - } - - FMT_NORETURN void on_error() { - FMT_THROW(format_error("invalid type specifier")); + return true; } - }; - enum { inf_size = 3 }; // This is an enum to workaround a bug in MSVC. + return false; + }); - struct inf_or_nan_writer { - char sign; - bool as_percentage; - const char* str; + struct bounded_output_iterator { + reserve_iterator underlying_iterator; + size_t bound; - size_t size() const { - return static_cast(inf_size + (sign ? 1 : 0) + - (as_percentage ? 1 : 0)); + FMT_CONSTEXPR auto operator*() -> bounded_output_iterator& { return *this; } + FMT_CONSTEXPR auto operator++() -> bounded_output_iterator& { + return *this; } - size_t width() const { return size(); } - - template void operator()(It&& it) const { - if (sign) *it++ = static_cast(sign); - it = internal::copy_str( - str, str + static_cast(inf_size), it); - if (as_percentage) *it++ = static_cast('%'); + FMT_CONSTEXPR auto operator++(int) -> bounded_output_iterator& { + return *this; } - }; - - struct double_writer { - char sign; - internal::buffer& buffer; - char* decimal_point_pos; - char_type decimal_point; - - size_t size() const { return buffer.size() + (sign ? 1 : 0); } - size_t width() const { return size(); } - - template void operator()(It&& it) { - if (sign) *it++ = static_cast(sign); - auto begin = buffer.begin(); - if (decimal_point_pos) { - it = internal::copy_str(begin, decimal_point_pos, it); - *it++ = decimal_point; - begin = decimal_point_pos + 1; + FMT_CONSTEXPR auto operator=(char c) -> bounded_output_iterator& { + if (bound > 0) { + *underlying_iterator++ = c; + --bound; } - it = internal::copy_str(begin, buffer.end(), it); + return *this; } }; - class grisu_writer { - private: - internal::buffer& digits_; - size_t size_; - char sign_; - int exp_; - internal::gen_digits_params params_; - char_type decimal_point_; - - public: - grisu_writer(char sign, internal::buffer& digits, int exp, - const internal::gen_digits_params& params, - char_type decimal_point) - : digits_(digits), - sign_(sign), - exp_(exp), - params_(params), - decimal_point_(decimal_point) { - int num_digits = static_cast(digits.size()); - int full_exp = num_digits + exp - 1; - int precision = params.num_digits > 0 ? params.num_digits : 11; - params_.fixed |= full_exp >= -4 && full_exp < precision; - auto it = internal::grisu_prettify( - digits.data(), num_digits, exp, internal::counting_iterator(), - params_, '.'); - size_ = it.count(); - } - - size_t size() const { return size_ + (sign_ ? 1 : 0); } - size_t width() const { return size(); } + return write_padded( + out, specs, size, display_width, [=](reserve_iterator it) { + return is_debug + ? write_escaped_string(bounded_output_iterator{it, size}, s) + .underlying_iterator + : copy(s.data(), s.data() + size, it); + }); +} - template void operator()(It&& it) { - if (sign_) *it++ = static_cast(sign_); - int num_digits = static_cast(digits_.size()); - it = internal::grisu_prettify(digits_.data(), num_digits, exp_, - it, params_, decimal_point_); - } - }; +template ::value)> +FMT_CONSTEXPR auto write(OutputIt out, basic_string_view s, + const format_specs& specs) -> OutputIt { + auto data = s.data(); + auto size = s.size(); + if (specs.precision >= 0 && to_unsigned(specs.precision) < size) + size = to_unsigned(specs.precision); + + bool is_debug = specs.type() == presentation_type::debug; + if (is_debug) { + auto buf = counting_buffer(); + write_escaped_string(basic_appender(buf), s); + size = buf.count(); + } + + return write_padded( + out, specs, size, [=](reserve_iterator it) { + return is_debug ? write_escaped_string(it, s) + : copy(data, data + size, it); + }); +} - template struct str_writer { - const Char* s; - size_t size_; +template +FMT_CONSTEXPR auto write(OutputIt out, basic_string_view s, + const format_specs& specs, locale_ref) -> OutputIt { + return write(out, s, specs); +} - size_t size() const { return size_; } - size_t width() const { - return internal::count_code_points(basic_string_view(s, size_)); - } +template +FMT_CONSTEXPR auto write(OutputIt out, const Char* s, const format_specs& specs, + locale_ref) -> OutputIt { + if (specs.type() == presentation_type::pointer) + return write_ptr(out, bit_cast(s), &specs); + if (!s) report_error("string pointer is null"); + return write(out, basic_string_view(s), specs, {}); +} - template void operator()(It&& it) const { - it = internal::copy_str(s, s + size_, it); - } - }; +template ::value && + !std::is_same::value && + !std::is_same::value)> +FMT_CONSTEXPR auto write(OutputIt out, T value) -> OutputIt { + auto abs_value = static_cast>(value); + bool negative = is_negative(value); + // Don't do -abs_value since it trips unsigned-integer-overflow sanitizer. + if (negative) abs_value = ~abs_value + 1; + int num_digits = count_digits(abs_value); + auto size = (negative ? 1 : 0) + static_cast(num_digits); + if (auto ptr = to_pointer(out, size)) { + if (negative) *ptr++ = static_cast('-'); + format_decimal(ptr, abs_value, num_digits); + return out; + } + if (negative) *out++ = static_cast('-'); + return format_decimal(out, abs_value, num_digits); +} + +template +FMT_CONSTEXPR auto parse_align(const Char* begin, const Char* end, + format_specs& specs) -> const Char* { + FMT_ASSERT(begin != end, ""); + auto alignment = align::none; + auto p = begin + code_point_length(begin); + if (end - p <= 0) p = begin; + for (;;) { + switch (to_ascii(*p)) { + case '<': alignment = align::left; break; + case '>': alignment = align::right; break; + case '^': alignment = align::center; break; + } + if (alignment != align::none) { + if (p != begin) { + auto c = *begin; + if (c == '}') return begin; + if (c == '{') { + report_error("invalid fill character '{'"); + return begin; + } + specs.set_fill(basic_string_view(begin, to_unsigned(p - begin))); + begin = p + 1; + } else { + ++begin; + } + break; + } else if (p == begin) { + break; + } + p = begin; + } + specs.set_align(alignment); + return begin; +} - template struct pointer_writer { - UIntPtr value; - int num_digits; +template +FMT_CONSTEXPR20 auto write_nonfinite(OutputIt out, bool isnan, + format_specs specs, sign s) -> OutputIt { + auto str = + isnan ? (specs.upper() ? "NAN" : "nan") : (specs.upper() ? "INF" : "inf"); + constexpr size_t str_size = 3; + auto size = str_size + (s != sign::none ? 1 : 0); + // Replace '0'-padding with space for non-finite values. + const bool is_zero_fill = + specs.fill_size() == 1 && specs.fill_unit() == '0'; + if (is_zero_fill) specs.set_fill(' '); + return write_padded(out, specs, size, + [=](reserve_iterator it) { + if (s != sign::none) + *it++ = detail::getsign(s); + return copy(str, str + str_size, it); + }); +} - size_t size() const { return to_unsigned(num_digits) + 2; } - size_t width() const { return size(); } +// A decimal floating-point number significand * pow(10, exp). +struct big_decimal_fp { + const char* significand; + int significand_size; + int exponent; +}; - template void operator()(It&& it) const { - *it++ = static_cast('0'); - *it++ = static_cast('x'); - it = internal::format_uint<4, char_type>(it, value, num_digits); - } - }; +constexpr auto get_significand_size(const big_decimal_fp& f) -> int { + return f.significand_size; +} +template +inline auto get_significand_size(const dragonbox::decimal_fp& f) -> int { + return count_digits(f.significand); +} + +template +constexpr auto write_significand(OutputIt out, const char* significand, + int significand_size) -> OutputIt { + return copy(significand, significand + significand_size, out); +} +template +inline auto write_significand(OutputIt out, UInt significand, + int significand_size) -> OutputIt { + return format_decimal(out, significand, significand_size); +} +template +FMT_CONSTEXPR20 auto write_significand(OutputIt out, T significand, + int significand_size, int exponent, + const Grouping& grouping) -> OutputIt { + if (!grouping.has_separator()) { + out = write_significand(out, significand, significand_size); + return detail::fill_n(out, exponent, static_cast('0')); + } + auto buffer = memory_buffer(); + write_significand(appender(buffer), significand, significand_size); + detail::fill_n(appender(buffer), exponent, '0'); + return grouping.apply(out, string_view(buffer.data(), buffer.size())); +} + +template ::value)> +inline auto write_significand(Char* out, UInt significand, int significand_size, + int integral_size, Char decimal_point) -> Char* { + if (!decimal_point) return format_decimal(out, significand, significand_size); + out += significand_size + 1; + Char* end = out; + int floating_size = significand_size - integral_size; + for (int i = floating_size / 2; i > 0; --i) { + out -= 2; + write2digits(out, static_cast(significand % 100)); + significand /= 100; + } + if (floating_size % 2 != 0) { + *--out = static_cast('0' + significand % 10); + significand /= 10; + } + *--out = decimal_point; + format_decimal(out - integral_size, significand, integral_size); + return end; +} + +template >::value)> +inline auto write_significand(OutputIt out, UInt significand, + int significand_size, int integral_size, + Char decimal_point) -> OutputIt { + // Buffer is large enough to hold digits (digits10 + 1) and a decimal point. + Char buffer[digits10() + 2]; + auto end = write_significand(buffer, significand, significand_size, + integral_size, decimal_point); + return detail::copy_noinline(buffer, end, out); +} + +template +FMT_CONSTEXPR auto write_significand(OutputIt out, const char* significand, + int significand_size, int integral_size, + Char decimal_point) -> OutputIt { + out = detail::copy_noinline(significand, significand + integral_size, + out); + if (!decimal_point) return out; + *out++ = decimal_point; + return detail::copy_noinline(significand + integral_size, + significand + significand_size, out); +} + +template +FMT_CONSTEXPR20 auto write_significand(OutputIt out, T significand, + int significand_size, int integral_size, + Char decimal_point, + const Grouping& grouping) -> OutputIt { + if (!grouping.has_separator()) { + return write_significand(out, significand, significand_size, integral_size, + decimal_point); + } + auto buffer = basic_memory_buffer(); + write_significand(basic_appender(buffer), significand, significand_size, + integral_size, decimal_point); + grouping.apply( + out, basic_string_view(buffer.data(), to_unsigned(integral_size))); + return detail::copy_noinline(buffer.data() + integral_size, + buffer.end(), out); +} +// Numbers with exponents greater or equal to the returned value will use +// the exponential notation. +template FMT_CONSTEVAL auto exp_upper() -> int { + return std::numeric_limits::digits10 != 0 + ? min_of(16, std::numeric_limits::digits10 + 1) + : 16; +} + +// Use the fixed notation if the exponent is in [-4, exp_upper), +// e.g. 0.0001 instead of 1e-04. Otherwise use the exponent notation. +constexpr auto use_fixed(int exp, int exp_upper) -> bool { + return exp >= -4 && exp < exp_upper; +} + +template class fallback_digit_grouping { public: - /** Constructs a ``basic_writer`` object. */ - explicit basic_writer(Range out, - internal::locale_ref loc = internal::locale_ref()) - : out_(out.begin()), locale_(loc) {} - - iterator out() const { return out_; } - - // Writes a value in the format - // - // where is written by f(it). - template void write_padded(const format_specs& specs, F&& f) { - // User-perceived width (in code points). - unsigned width = to_unsigned(specs.width); - size_t size = f.size(); // The number of code units. - size_t num_code_points = width != 0 ? f.width() : size; - if (width <= num_code_points) return f(reserve(size)); - auto&& it = reserve(width + (size - num_code_points)); - char_type fill = specs.fill[0]; - std::size_t padding = width - num_code_points; - if (specs.align == align::right) { - it = std::fill_n(it, padding, fill); - f(it); - } else if (specs.align == align::center) { - std::size_t left_padding = padding / 2; - it = std::fill_n(it, left_padding, fill); - f(it); - it = std::fill_n(it, padding - left_padding, fill); - } else { - f(it); - it = std::fill_n(it, padding, fill); + constexpr fallback_digit_grouping(locale_ref, bool) {} + + constexpr auto has_separator() const -> bool { return false; } + + constexpr auto count_separators(int) const -> int { return 0; } + + template + constexpr auto apply(Out out, basic_string_view) const -> Out { + return out; + } +}; + +template +FMT_CONSTEXPR20 auto write_fixed(OutputIt out, const DecimalFP& f, + int significand_size, Char decimal_point, + const format_specs& specs, sign s, + locale_ref loc = {}) -> OutputIt { + using iterator = reserve_iterator; + + int exp = f.exponent + significand_size; + long long size = significand_size + (s != sign::none ? 1 : 0); + if (f.exponent >= 0) { + // 1234e5 -> 123400000[.0+] + size += f.exponent; + int num_zeros = specs.precision - exp; + abort_fuzzing_if(num_zeros > 5000); + if (specs.alt()) { + ++size; + if (num_zeros <= 0 && specs.type() != presentation_type::fixed) + num_zeros = 0; + if (num_zeros > 0) size += num_zeros; } + auto grouping = Grouping(loc, specs.localized()); + size += grouping.count_separators(exp); + return write_padded( + out, specs, static_cast(size), [&](iterator it) { + if (s != sign::none) *it++ = detail::getsign(s); + it = write_significand(it, f.significand, significand_size, + f.exponent, grouping); + if (!specs.alt()) return it; + *it++ = decimal_point; + return num_zeros > 0 ? detail::fill_n(it, num_zeros, Char('0')) : it; + }); + } + if (exp > 0) { + // 1234e-2 -> 12.34[0+] + int num_zeros = specs.alt() ? specs.precision - significand_size : 0; + size += 1 + max_of(num_zeros, 0); + auto grouping = Grouping(loc, specs.localized()); + size += grouping.count_separators(exp); + return write_padded( + out, specs, to_unsigned(size), [&](iterator it) { + if (s != sign::none) *it++ = detail::getsign(s); + it = write_significand(it, f.significand, significand_size, exp, + decimal_point, grouping); + return num_zeros > 0 ? detail::fill_n(it, num_zeros, Char('0')) : it; + }); + } + // 1234e-6 -> 0.001234 + int num_zeros = -exp; + if (significand_size == 0 && specs.precision >= 0 && + specs.precision < num_zeros) { + num_zeros = specs.precision; + } + bool pointy = num_zeros != 0 || significand_size != 0 || specs.alt(); + size += 1 + (pointy ? 1 : 0) + num_zeros; + return write_padded( + out, specs, to_unsigned(size), [&](iterator it) { + if (s != sign::none) *it++ = detail::getsign(s); + *it++ = Char('0'); + if (!pointy) return it; + *it++ = decimal_point; + it = detail::fill_n(it, num_zeros, Char('0')); + return write_significand(it, f.significand, significand_size); + }); +} + +template +FMT_CONSTEXPR20 auto do_write_float(OutputIt out, const DecimalFP& f, + const format_specs& specs, sign s, + int exp_upper, locale_ref loc) -> OutputIt { + Char point = specs.localized() ? detail::decimal_point(loc) : Char('.'); + int significand_size = get_significand_size(f); + int exp = f.exponent + significand_size - 1; + if (specs.type() == presentation_type::fixed || + (specs.type() != presentation_type::exp && + use_fixed(exp, specs.precision > 0 ? specs.precision : exp_upper))) { + return write_fixed(out, f, significand_size, point, specs, + s, loc); + } + + // Write value in the exponential format. + int num_zeros = 0; + long long size = significand_size + (s != sign::none ? 1 : 0); + if (specs.alt()) { + num_zeros = max_of(specs.precision - significand_size, 0); + size += num_zeros; + } else if (significand_size == 1) { + point = Char(); + } + size += (point ? 1 : 0) + compute_exp_size(exp); + char exp_char = specs.upper() ? 'E' : 'e'; + auto write = [=](reserve_iterator it) { + if (s != sign::none) *it++ = detail::getsign(s); + // Insert a decimal point after the first digit and add an exponent. + it = write_significand(it, f.significand, significand_size, 1, point); + if (num_zeros > 0) it = detail::fill_n(it, num_zeros, Char('0')); + *it++ = Char(exp_char); + return write_exponent(exp, it); + }; + auto usize = to_unsigned(size); + return specs.width > 0 + ? write_padded(out, specs, usize, write) + : base_iterator(out, write(reserve(out, usize))); +} + +template +FMT_CONSTEXPR20 auto write_float(OutputIt out, const DecimalFP& f, + const format_specs& specs, sign s, + int exp_upper, locale_ref loc) -> OutputIt { + if (is_constant_evaluated()) { + return do_write_float>(out, f, specs, s, + exp_upper, loc); + } else { + return do_write_float>(out, f, specs, s, + exp_upper, loc); } +} + +template constexpr auto isnan(T value) -> bool { + return value != value; // std::isnan doesn't support __float128. +} - void write(int value) { write_decimal(value); } - void write(long value) { write_decimal(value); } - void write(long long value) { write_decimal(value); } +template +struct has_isfinite : std::false_type {}; - void write(unsigned value) { write_decimal(value); } - void write(unsigned long value) { write_decimal(value); } - void write(unsigned long long value) { write_decimal(value); } +template +struct has_isfinite> + : std::true_type {}; + +template ::value&& has_isfinite::value)> +FMT_CONSTEXPR20 auto isfinite(T value) -> bool { + constexpr T inf = T(std::numeric_limits::infinity()); + if (is_constant_evaluated()) + return !detail::isnan(value) && value < inf && value > -inf; + return std::isfinite(value); +} +template ::value)> +FMT_CONSTEXPR auto isfinite(T value) -> bool { + T inf = T(std::numeric_limits::infinity()); + // std::isfinite doesn't support __float128. + return !detail::isnan(value) && value < inf && value > -inf; +} - // Writes a formatted integer. - template - void write_int(T value, const Spec& spec) { - internal::handle_int_type_spec(spec.type, - int_writer(*this, value, spec)); +template ::value)> +FMT_INLINE FMT_CONSTEXPR auto signbit(T value) -> bool { + if (is_constant_evaluated()) { +#ifdef __cpp_if_constexpr + if constexpr (std::numeric_limits::is_iec559) { + auto bits = detail::bit_cast(static_cast(value)); + return (bits >> (num_bits() - 1)) != 0; + } +#endif } + return std::signbit(static_cast(value)); +} + +inline FMT_CONSTEXPR20 void adjust_precision(int& precision, int exp10) { + // Adjust fixed precision by exponent because it is relative to decimal + // point. + if (exp10 > 0 && precision > max_value() - exp10) + FMT_THROW(format_error("number is too big")); + precision += exp10; +} - void write(double value, const format_specs& specs = format_specs()) { - write_double(value, specs); +class bigint { + private: + // A bigint is a number in the form bigit_[N - 1] ... bigit_[0] * 32^exp_. + using bigit = uint32_t; // A big digit. + using double_bigit = uint64_t; + enum { bigit_bits = num_bits() }; + enum { bigits_capacity = 32 }; + basic_memory_buffer bigits_; + int exp_; + + friend struct formatter; + + FMT_CONSTEXPR auto get_bigit(int i) const -> bigit { + return i >= exp_ && i < num_bigits() ? bigits_[i - exp_] : 0; + } + + FMT_CONSTEXPR void subtract_bigits(int index, bigit other, bigit& borrow) { + auto result = double_bigit(bigits_[index]) - other - borrow; + bigits_[index] = static_cast(result); + borrow = static_cast(result >> (bigit_bits * 2 - 1)); + } + + FMT_CONSTEXPR void remove_leading_zeros() { + int num_bigits = static_cast(bigits_.size()) - 1; + while (num_bigits > 0 && bigits_[num_bigits] == 0) --num_bigits; + bigits_.resize(to_unsigned(num_bigits + 1)); + } + + // Computes *this -= other assuming aligned bigints and *this >= other. + FMT_CONSTEXPR void subtract_aligned(const bigint& other) { + FMT_ASSERT(other.exp_ >= exp_, "unaligned bigints"); + FMT_ASSERT(compare(*this, other) >= 0, ""); + bigit borrow = 0; + int i = other.exp_ - exp_; + for (size_t j = 0, n = other.bigits_.size(); j != n; ++i, ++j) + subtract_bigits(i, other.bigits_[j], borrow); + if (borrow != 0) subtract_bigits(i, 0, borrow); + FMT_ASSERT(borrow == 0, ""); + remove_leading_zeros(); + } + + FMT_CONSTEXPR void multiply(uint32_t value) { + bigit carry = 0; + const double_bigit wide_value = value; + for (size_t i = 0, n = bigits_.size(); i < n; ++i) { + double_bigit result = bigits_[i] * wide_value + carry; + bigits_[i] = static_cast(result); + carry = static_cast(result >> bigit_bits); + } + if (carry != 0) bigits_.push_back(carry); + } + + template ::value || + std::is_same::value)> + FMT_CONSTEXPR void multiply(UInt value) { + using half_uint = + conditional_t::value, uint64_t, uint32_t>; + const int shift = num_bits() - bigit_bits; + const UInt lower = static_cast(value); + const UInt upper = value >> num_bits(); + UInt carry = 0; + for (size_t i = 0, n = bigits_.size(); i < n; ++i) { + UInt result = lower * bigits_[i] + static_cast(carry); + carry = (upper * bigits_[i] << shift) + (result >> bigit_bits) + + (carry >> bigit_bits); + bigits_[i] = static_cast(result); + } + while (carry != 0) { + bigits_.push_back(static_cast(carry)); + carry >>= bigit_bits; + } } - /** - \rst - Formats *value* using the general format for floating-point numbers - (``'g'``) and writes it to the buffer. - \endrst - */ - void write(long double value, const format_specs& specs = format_specs()) { - write_double(value, specs); + template ::value || + std::is_same::value)> + FMT_CONSTEXPR void assign(UInt n) { + size_t num_bigits = 0; + do { + bigits_[num_bigits++] = static_cast(n); + n >>= bigit_bits; + } while (n != 0); + bigits_.resize(num_bigits); + exp_ = 0; } - // Formats a floating-point number (double or long double). - template ()> - void write_double(T value, const format_specs& specs); + public: + FMT_CONSTEXPR bigint() : exp_(0) {} + explicit bigint(uint64_t n) { assign(n); } + + bigint(const bigint&) = delete; + void operator=(const bigint&) = delete; - /** Writes a character to the buffer. */ - void write(char value) { - auto&& it = reserve(1); - *it++ = value; + FMT_CONSTEXPR void assign(const bigint& other) { + auto size = other.bigits_.size(); + bigits_.resize(size); + auto data = other.bigits_.data(); + copy(data, data + size, bigits_.data()); + exp_ = other.exp_; } - template ::value)> - void write(Char value) { - auto&& it = reserve(1); - *it++ = value; + template FMT_CONSTEXPR void operator=(Int n) { + FMT_ASSERT(n > 0, ""); + assign(uint64_or_128_t(n)); } - /** - \rst - Writes *value* to the buffer. - \endrst - */ - void write(string_view value) { - auto&& it = reserve(value.size()); - it = internal::copy_str(value.begin(), value.end(), it); + FMT_CONSTEXPR auto num_bigits() const -> int { + return static_cast(bigits_.size()) + exp_; } - void write(wstring_view value) { - static_assert(std::is_same::value, ""); - auto&& it = reserve(value.size()); - it = std::copy(value.begin(), value.end(), it); + + FMT_CONSTEXPR auto operator<<=(int shift) -> bigint& { + FMT_ASSERT(shift >= 0, ""); + exp_ += shift / bigit_bits; + shift %= bigit_bits; + if (shift == 0) return *this; + bigit carry = 0; + for (size_t i = 0, n = bigits_.size(); i < n; ++i) { + bigit c = bigits_[i] >> (bigit_bits - shift); + bigits_[i] = (bigits_[i] << shift) + carry; + carry = c; + } + if (carry != 0) bigits_.push_back(carry); + return *this; } - // Writes a formatted string. - template - void write(const Char* s, std::size_t size, const format_specs& specs) { - write_padded(specs, str_writer{s, size}); + template FMT_CONSTEXPR auto operator*=(Int value) -> bigint& { + FMT_ASSERT(value > 0, ""); + multiply(uint32_or_64_or_128_t(value)); + return *this; } - template - void write(basic_string_view s, - const format_specs& specs = format_specs()) { - const Char* data = s.data(); - std::size_t size = s.size(); - if (specs.precision >= 0 && internal::to_unsigned(specs.precision) < size) - size = internal::to_unsigned(specs.precision); - write(data, size, specs); + friend FMT_CONSTEXPR auto compare(const bigint& b1, const bigint& b2) -> int { + int num_bigits1 = b1.num_bigits(), num_bigits2 = b2.num_bigits(); + if (num_bigits1 != num_bigits2) return num_bigits1 > num_bigits2 ? 1 : -1; + int i = static_cast(b1.bigits_.size()) - 1; + int j = static_cast(b2.bigits_.size()) - 1; + int end = i - j; + if (end < 0) end = 0; + for (; i >= end; --i, --j) { + bigit b1_bigit = b1.bigits_[i], b2_bigit = b2.bigits_[j]; + if (b1_bigit != b2_bigit) return b1_bigit > b2_bigit ? 1 : -1; + } + if (i != j) return i > j ? 1 : -1; + return 0; } - template - void write_pointer(UIntPtr value, const format_specs* specs) { - int num_digits = internal::count_digits<4>(value); - auto pw = pointer_writer{value, num_digits}; - if (!specs) return pw(reserve(to_unsigned(num_digits) + 2)); - format_specs specs_copy = *specs; - if (specs_copy.align == align::none) specs_copy.align = align::right; - write_padded(specs_copy, pw); + // Returns compare(lhs1 + lhs2, rhs). + friend FMT_CONSTEXPR auto add_compare(const bigint& lhs1, const bigint& lhs2, + const bigint& rhs) -> int { + int max_lhs_bigits = max_of(lhs1.num_bigits(), lhs2.num_bigits()); + int num_rhs_bigits = rhs.num_bigits(); + if (max_lhs_bigits + 1 < num_rhs_bigits) return -1; + if (max_lhs_bigits > num_rhs_bigits) return 1; + double_bigit borrow = 0; + int min_exp = min_of(min_of(lhs1.exp_, lhs2.exp_), rhs.exp_); + for (int i = num_rhs_bigits - 1; i >= min_exp; --i) { + double_bigit sum = double_bigit(lhs1.get_bigit(i)) + lhs2.get_bigit(i); + bigit rhs_bigit = rhs.get_bigit(i); + if (sum > rhs_bigit + borrow) return 1; + borrow = rhs_bigit + borrow - sum; + if (borrow > 1) return -1; + borrow <<= bigit_bits; + } + return borrow != 0 ? -1 : 0; + } + + // Assigns pow(10, exp) to this bigint. + FMT_CONSTEXPR20 void assign_pow10(int exp) { + FMT_ASSERT(exp >= 0, ""); + if (exp == 0) return *this = 1; + int bitmask = 1 << (num_bits() - + countl_zero(static_cast(exp)) - 1); + // pow(10, exp) = pow(5, exp) * pow(2, exp). First compute pow(5, exp) by + // repeated squaring and multiplication. + *this = 5; + bitmask >>= 1; + while (bitmask != 0) { + square(); + if ((exp & bitmask) != 0) *this *= 5; + bitmask >>= 1; + } + *this <<= exp; // Multiply by pow(2, exp) by shifting. + } + + FMT_CONSTEXPR20 void square() { + int num_bigits = static_cast(bigits_.size()); + int num_result_bigits = 2 * num_bigits; + basic_memory_buffer n(std::move(bigits_)); + bigits_.resize(to_unsigned(num_result_bigits)); + auto sum = uint128_t(); + for (int bigit_index = 0; bigit_index < num_bigits; ++bigit_index) { + // Compute bigit at position bigit_index of the result by adding + // cross-product terms n[i] * n[j] such that i + j == bigit_index. + for (int i = 0, j = bigit_index; j >= 0; ++i, --j) { + // Most terms are multiplied twice which can be optimized in the future. + sum += double_bigit(n[i]) * n[j]; + } + bigits_[bigit_index] = static_cast(sum); + sum >>= num_bits(); // Compute the carry. + } + // Do the same for the top half. + for (int bigit_index = num_bigits; bigit_index < num_result_bigits; + ++bigit_index) { + for (int j = num_bigits - 1, i = bigit_index - j; i < num_bigits;) + sum += double_bigit(n[i++]) * n[j--]; + bigits_[bigit_index] = static_cast(sum); + sum >>= num_bits(); + } + remove_leading_zeros(); + exp_ *= 2; + } + + // If this bigint has a bigger exponent than other, adds trailing zero to make + // exponents equal. This simplifies some operations such as subtraction. + FMT_CONSTEXPR void align(const bigint& other) { + int exp_difference = exp_ - other.exp_; + if (exp_difference <= 0) return; + int num_bigits = static_cast(bigits_.size()); + bigits_.resize(to_unsigned(num_bigits + exp_difference)); + for (int i = num_bigits - 1, j = i + exp_difference; i >= 0; --i, --j) + bigits_[j] = bigits_[i]; + fill_n(bigits_.data(), to_unsigned(exp_difference), 0U); + exp_ -= exp_difference; + } + + // Divides this bignum by divisor, assigning the remainder to this and + // returning the quotient. + FMT_CONSTEXPR auto divmod_assign(const bigint& divisor) -> int { + FMT_ASSERT(this != &divisor, ""); + if (compare(*this, divisor) < 0) return 0; + FMT_ASSERT(divisor.bigits_[divisor.bigits_.size() - 1u] != 0, ""); + align(divisor); + int quotient = 0; + do { + subtract_aligned(divisor); + ++quotient; + } while (compare(*this, divisor) >= 0); + return quotient; } }; -using writer = basic_writer>; +// format_dragon flags. +enum dragon { + predecessor_closer = 1, + fixup = 2, // Run fixup to correct exp10 which can be off by one. + fixed = 4, +}; -template -class arg_formatter_base { - public: - using char_type = typename Range::value_type; - using iterator = typename Range::iterator; - using format_specs = basic_format_specs; +// Formats a floating-point number using a variation of the Fixed-Precision +// Positive Floating-Point Printout ((FPP)^2) algorithm by Steele & White: +// https://fmt.dev/papers/p372-steele.pdf. +FMT_CONSTEXPR20 inline void format_dragon(basic_fp value, + unsigned flags, int num_digits, + buffer& buf, int& exp10) { + bigint numerator; // 2 * R in (FPP)^2. + bigint denominator; // 2 * S in (FPP)^2. + // lower and upper are differences between value and corresponding boundaries. + bigint lower; // (M^- in (FPP)^2). + bigint upper_store; // upper's value if different from lower. + bigint* upper = nullptr; // (M^+ in (FPP)^2). + // Shift numerator and denominator by an extra bit or two (if lower boundary + // is closer) to make lower and upper integers. This eliminates multiplication + // by 2 during later computations. + bool is_predecessor_closer = (flags & dragon::predecessor_closer) != 0; + int shift = is_predecessor_closer ? 2 : 1; + if (value.e >= 0) { + numerator = value.f; + numerator <<= value.e + shift; + lower = 1; + lower <<= value.e; + if (is_predecessor_closer) { + upper_store = 1; + upper_store <<= value.e + 1; + upper = &upper_store; + } + denominator.assign_pow10(exp10); + denominator <<= shift; + } else if (exp10 < 0) { + numerator.assign_pow10(-exp10); + lower.assign(numerator); + if (is_predecessor_closer) { + upper_store.assign(numerator); + upper_store <<= 1; + upper = &upper_store; + } + numerator *= value.f; + numerator <<= shift; + denominator = 1; + denominator <<= shift - value.e; + } else { + numerator = value.f; + numerator <<= shift; + denominator.assign_pow10(exp10); + denominator <<= shift - value.e; + lower = 1; + if (is_predecessor_closer) { + upper_store = 1ULL << 1; + upper = &upper_store; + } + } + int even = static_cast((value.f & 1) == 0); + if (!upper) upper = &lower; + bool shortest = num_digits < 0; + if ((flags & dragon::fixup) != 0) { + if (add_compare(numerator, *upper, denominator) + even <= 0) { + --exp10; + numerator *= 10; + if (num_digits < 0) { + lower *= 10; + if (upper != &lower) *upper *= 10; + } + } + if ((flags & dragon::fixed) != 0) adjust_precision(num_digits, exp10 + 1); + } + // Invariant: value == (numerator / denominator) * pow(10, exp10). + if (shortest) { + // Generate the shortest representation. + num_digits = 0; + char* data = buf.data(); + for (;;) { + int digit = numerator.divmod_assign(denominator); + bool low = compare(numerator, lower) - even < 0; // numerator <[=] lower. + // numerator + upper >[=] pow10: + bool high = add_compare(numerator, *upper, denominator) + even > 0; + data[num_digits++] = static_cast('0' + digit); + if (low || high) { + if (!low) { + ++data[num_digits - 1]; + } else if (high) { + int result = add_compare(numerator, numerator, denominator); + // Round half to even. + if (result > 0 || (result == 0 && (digit % 2) != 0)) + ++data[num_digits - 1]; + } + buf.try_resize(to_unsigned(num_digits)); + exp10 -= num_digits - 1; + return; + } + numerator *= 10; + lower *= 10; + if (upper != &lower) *upper *= 10; + } + } + // Generate the given number of digits. + exp10 -= num_digits - 1; + if (num_digits <= 0) { + auto digit = '0'; + if (num_digits == 0) { + denominator *= 10; + digit = add_compare(numerator, numerator, denominator) > 0 ? '1' : '0'; + } + buf.push_back(digit); + return; + } + buf.try_resize(to_unsigned(num_digits)); + for (int i = 0; i < num_digits - 1; ++i) { + int digit = numerator.divmod_assign(denominator); + buf[i] = static_cast('0' + digit); + numerator *= 10; + } + int digit = numerator.divmod_assign(denominator); + auto result = add_compare(numerator, numerator, denominator); + if (result > 0 || (result == 0 && (digit % 2) != 0)) { + if (digit == 9) { + const auto overflow = '0' + 10; + buf[num_digits - 1] = overflow; + // Propagate the carry. + for (int i = num_digits - 1; i > 0 && buf[i] == overflow; --i) { + buf[i] = '0'; + ++buf[i - 1]; + } + if (buf[0] == overflow) { + buf[0] = '1'; + if ((flags & dragon::fixed) != 0) + buf.push_back('0'); + else + ++exp10; + } + return; + } + ++digit; + } + buf[num_digits - 1] = static_cast('0' + digit); +} - private: - using writer_type = basic_writer; - writer_type writer_; - format_specs* specs_; +// Formats a floating-point number using the hexfloat format. +template ::value)> +FMT_CONSTEXPR20 void format_hexfloat(Float value, format_specs specs, + buffer& buf) { + // float is passed as double to reduce the number of instantiations and to + // simplify implementation. + static_assert(!std::is_same::value, ""); + + using info = dragonbox::float_info; + + // Assume Float is in the format [sign][exponent][significand]. + using carrier_uint = typename info::carrier_uint; + + const auto num_float_significand_bits = detail::num_significand_bits(); + + basic_fp f(value); + f.e += num_float_significand_bits; + if (!has_implicit_bit()) --f.e; + + const auto num_fraction_bits = + num_float_significand_bits + (has_implicit_bit() ? 1 : 0); + const auto num_xdigits = (num_fraction_bits + 3) / 4; + + const auto leading_shift = ((num_xdigits - 1) * 4); + const auto leading_mask = carrier_uint(0xF) << leading_shift; + const auto leading_xdigit = + static_cast((f.f & leading_mask) >> leading_shift); + if (leading_xdigit > 1) f.e -= (32 - countl_zero(leading_xdigit) - 1); + + int print_xdigits = num_xdigits - 1; + if (specs.precision >= 0 && print_xdigits > specs.precision) { + const int shift = ((print_xdigits - specs.precision - 1) * 4); + const auto mask = carrier_uint(0xF) << shift; + const auto v = static_cast((f.f & mask) >> shift); + + if (v >= 8) { + const auto inc = carrier_uint(1) << (shift + 4); + f.f += inc; + f.f &= ~(inc - 1); + } - struct char_writer { - char_type value; + // Check long double overflow + if (!has_implicit_bit()) { + const auto implicit_bit = carrier_uint(1) << num_float_significand_bits; + if ((f.f & implicit_bit) == implicit_bit) { + f.f >>= 4; + f.e += 4; + } + } - size_t size() const { return 1; } - size_t width() const { return 1; } + print_xdigits = specs.precision; + } - template void operator()(It&& it) const { *it++ = value; } - }; + char xdigits[num_bits() / 4]; + detail::fill_n(xdigits, sizeof(xdigits), '0'); + format_base2e(4, xdigits, f.f, num_xdigits, specs.upper()); - void write_char(char_type value) { - if (specs_) - writer_.write_padded(*specs_, char_writer{value}); - else - writer_.write(value); - } + // Remove zero tail + while (print_xdigits > 0 && xdigits[print_xdigits] == '0') --print_xdigits; + + buf.push_back('0'); + buf.push_back(specs.upper() ? 'X' : 'x'); + buf.push_back(xdigits[0]); + if (specs.alt() || print_xdigits > 0 || print_xdigits < specs.precision) + buf.push_back('.'); + buf.append(xdigits + 1, xdigits + 1 + print_xdigits); + for (; print_xdigits < specs.precision; ++print_xdigits) buf.push_back('0'); + + buf.push_back(specs.upper() ? 'P' : 'p'); - void write_pointer(const void* p) { - writer_.write_pointer(internal::bit_cast(p), specs_); + uint32_t abs_e; + if (f.e < 0) { + buf.push_back('-'); + abs_e = static_cast(-f.e); + } else { + buf.push_back('+'); + abs_e = static_cast(f.e); } + format_decimal(appender(buf), abs_e, detail::count_digits(abs_e)); +} - protected: - writer_type& writer() { return writer_; } - FMT_DEPRECATED format_specs* spec() { return specs_; } - format_specs* specs() { return specs_; } - iterator out() { return writer_.out(); } +template ::value)> +FMT_CONSTEXPR20 void format_hexfloat(Float value, format_specs specs, + buffer& buf) { + format_hexfloat(static_cast(value), specs, buf); +} - void write(bool value) { - string_view sv(value ? "true" : "false"); - specs_ ? writer_.write(sv, *specs_) : writer_.write(sv); +constexpr auto fractional_part_rounding_thresholds(int index) -> uint32_t { + // For checking rounding thresholds. + // The kth entry is chosen to be the smallest integer such that the + // upper 32-bits of 10^(k+1) times it is strictly bigger than 5 * 10^k. + // It is equal to ceil(2^31 + 2^32/10^(k + 1)). + // These are stored in a string literal because we cannot have static arrays + // in constexpr functions and non-static ones are poorly optimized. + return U"\x9999999a\x828f5c29\x80418938\x80068db9\x8000a7c6\x800010c7" + U"\x800001ae\x8000002b"[index]; +} + +template +FMT_CONSTEXPR20 auto format_float(Float value, int precision, + const format_specs& specs, bool binary32, + buffer& buf) -> int { + // float is passed as double to reduce the number of instantiations. + static_assert(!std::is_same::value, ""); + auto converted_value = convert_float(value); + + const bool fixed = specs.type() == presentation_type::fixed; + if (value == 0) { + if (precision <= 0 || !fixed) { + buf.push_back('0'); + return 0; + } + buf.try_resize(to_unsigned(precision)); + fill_n(buf.data(), precision, '0'); + return -precision; } - void write(const char_type* value) { - if (!value) { - FMT_THROW(format_error("string pointer is null")); + int exp = 0; + bool use_dragon = true; + unsigned dragon_flags = 0; + if (!is_fast_float() || is_constant_evaluated()) { + const auto inv_log2_10 = 0.3010299956639812; // 1 / log2(10) + using info = dragonbox::float_info; + const auto f = basic_fp(converted_value); + // Compute exp, an approximate power of 10, such that + // 10^(exp - 1) <= value < 10^exp or 10^exp <= value < 10^(exp + 1). + // This is based on log10(value) == log2(value) / log2(10) and approximation + // of log2(value) by e + num_fraction_bits idea from double-conversion. + auto e = (f.e + count_digits<1>(f.f) - 1) * inv_log2_10 - 1e-10; + exp = static_cast(e); + if (e > exp) ++exp; // Compute ceil. + dragon_flags = dragon::fixup; + } else { + // Extract significand bits and exponent bits. + using info = dragonbox::float_info; + auto br = bit_cast(static_cast(value)); + + const uint64_t significand_mask = + (static_cast(1) << num_significand_bits()) - 1; + uint64_t significand = (br & significand_mask); + int exponent = static_cast((br & exponent_mask()) >> + num_significand_bits()); + + if (exponent != 0) { // Check if normal. + exponent -= exponent_bias() + num_significand_bits(); + significand |= + (static_cast(1) << num_significand_bits()); + significand <<= 1; } else { - auto length = std::char_traits::length(value); - basic_string_view sv(value, length); - specs_ ? writer_.write(sv, *specs_) : writer_.write(sv); + // Normalize subnormal inputs. + FMT_ASSERT(significand != 0, "zeros should not appear here"); + int shift = countl_zero(significand); + FMT_ASSERT(shift >= num_bits() - num_significand_bits(), + ""); + shift -= (num_bits() - num_significand_bits() - 2); + exponent = (std::numeric_limits::min_exponent - + num_significand_bits()) - + shift; + significand <<= shift; } - } - public: - arg_formatter_base(Range r, format_specs* s, locale_ref loc) - : writer_(r, loc), specs_(s) {} + // Compute the first several nonzero decimal significand digits. + // We call the number we get the first segment. + const int k = info::kappa - dragonbox::floor_log10_pow2(exponent); + exp = -k; + const int beta = exponent + dragonbox::floor_log2_pow10(k); + uint64_t first_segment; + bool has_more_segments; + int digits_in_the_first_segment; + { + const auto r = dragonbox::umul192_upper128( + significand << beta, dragonbox::get_cached_power(k)); + first_segment = r.high(); + has_more_segments = r.low() != 0; + + // The first segment can have 18 ~ 19 digits. + if (first_segment >= 1000000000000000000ULL) { + digits_in_the_first_segment = 19; + } else { + // When it is of 18-digits, we align it to 19-digits by adding a bogus + // zero at the end. + digits_in_the_first_segment = 18; + first_segment *= 10; + } + } - iterator operator()(monostate) { - FMT_ASSERT(false, "invalid argument type"); - return out(); + // Compute the actual number of decimal digits to print. + if (fixed) adjust_precision(precision, exp + digits_in_the_first_segment); + + // Use Dragon4 only when there might be not enough digits in the first + // segment. + if (digits_in_the_first_segment > precision) { + use_dragon = false; + + if (precision <= 0) { + exp += digits_in_the_first_segment; + + if (precision < 0) { + // Nothing to do, since all we have are just leading zeros. + buf.try_resize(0); + } else { + // We may need to round-up. + buf.try_resize(1); + if ((first_segment | static_cast(has_more_segments)) > + 5000000000000000000ULL) { + buf[0] = '1'; + } else { + buf[0] = '0'; + } + } + } // precision <= 0 + else { + exp += digits_in_the_first_segment - precision; + + // When precision > 0, we divide the first segment into three + // subsegments, each with 9, 9, and 0 ~ 1 digits so that each fits + // in 32-bits which usually allows faster calculation than in + // 64-bits. Since some compiler (e.g. MSVC) doesn't know how to optimize + // division-by-constant for large 64-bit divisors, we do it here + // manually. The magic number 7922816251426433760 below is equal to + // ceil(2^(64+32) / 10^10). + const uint32_t first_subsegment = static_cast( + dragonbox::umul128_upper64(first_segment, 7922816251426433760ULL) >> + 32); + const uint64_t second_third_subsegments = + first_segment - first_subsegment * 10000000000ULL; + + uint64_t prod; + uint32_t digits; + bool should_round_up; + int number_of_digits_to_print = min_of(precision, 9); + + // Print a 9-digits subsegment, either the first or the second. + auto print_subsegment = [&](uint32_t subsegment, char* buffer) { + int number_of_digits_printed = 0; + + // If we want to print an odd number of digits from the subsegment, + if ((number_of_digits_to_print & 1) != 0) { + // Convert to 64-bit fixed-point fractional form with 1-digit + // integer part. The magic number 720575941 is a good enough + // approximation of 2^(32 + 24) / 10^8; see + // https://jk-jeon.github.io/posts/2022/12/fixed-precision-formatting/#fixed-length-case + // for details. + prod = ((subsegment * static_cast(720575941)) >> 24) + 1; + digits = static_cast(prod >> 32); + *buffer = static_cast('0' + digits); + number_of_digits_printed++; + } + // If we want to print an even number of digits from the + // first_subsegment, + else { + // Convert to 64-bit fixed-point fractional form with 2-digits + // integer part. The magic number 450359963 is a good enough + // approximation of 2^(32 + 20) / 10^7; see + // https://jk-jeon.github.io/posts/2022/12/fixed-precision-formatting/#fixed-length-case + // for details. + prod = ((subsegment * static_cast(450359963)) >> 20) + 1; + digits = static_cast(prod >> 32); + write2digits(buffer, digits); + number_of_digits_printed += 2; + } + + // Print all digit pairs. + while (number_of_digits_printed < number_of_digits_to_print) { + prod = static_cast(prod) * static_cast(100); + digits = static_cast(prod >> 32); + write2digits(buffer + number_of_digits_printed, digits); + number_of_digits_printed += 2; + } + }; + + // Print first subsegment. + print_subsegment(first_subsegment, buf.data()); + + // Perform rounding if the first subsegment is the last subsegment to + // print. + if (precision <= 9) { + // Rounding inside the subsegment. + // We round-up if: + // - either the fractional part is strictly larger than 1/2, or + // - the fractional part is exactly 1/2 and the last digit is odd. + // We rely on the following observations: + // - If fractional_part >= threshold, then the fractional part is + // strictly larger than 1/2. + // - If the MSB of fractional_part is set, then the fractional part + // must be at least 1/2. + // - When the MSB of fractional_part is set, either + // second_third_subsegments being nonzero or has_more_segments + // being true means there are further digits not printed, so the + // fractional part is strictly larger than 1/2. + if (precision < 9) { + uint32_t fractional_part = static_cast(prod); + should_round_up = + fractional_part >= fractional_part_rounding_thresholds( + 8 - number_of_digits_to_print) || + ((fractional_part >> 31) & + ((digits & 1) | (second_third_subsegments != 0) | + has_more_segments)) != 0; + } + // Rounding at the subsegment boundary. + // In this case, the fractional part is at least 1/2 if and only if + // second_third_subsegments >= 5000000000ULL, and is strictly larger + // than 1/2 if we further have either second_third_subsegments > + // 5000000000ULL or has_more_segments == true. + else { + should_round_up = second_third_subsegments > 5000000000ULL || + (second_third_subsegments == 5000000000ULL && + ((digits & 1) != 0 || has_more_segments)); + } + } + // Otherwise, print the second subsegment. + else { + // Compilers are not aware of how to leverage the maximum value of + // second_third_subsegments to find out a better magic number which + // allows us to eliminate an additional shift. 1844674407370955162 = + // ceil(2^64/10) < ceil(2^64*(10^9/(10^10 - 1))). + const uint32_t second_subsegment = + static_cast(dragonbox::umul128_upper64( + second_third_subsegments, 1844674407370955162ULL)); + const uint32_t third_subsegment = + static_cast(second_third_subsegments) - + second_subsegment * 10; + + number_of_digits_to_print = precision - 9; + print_subsegment(second_subsegment, buf.data() + 9); + + // Rounding inside the subsegment. + if (precision < 18) { + // The condition third_subsegment != 0 implies that the segment was + // of 19 digits, so in this case the third segment should be + // consisting of a genuine digit from the input. + uint32_t fractional_part = static_cast(prod); + should_round_up = + fractional_part >= fractional_part_rounding_thresholds( + 8 - number_of_digits_to_print) || + ((fractional_part >> 31) & + ((digits & 1) | (third_subsegment != 0) | + has_more_segments)) != 0; + } + // Rounding at the subsegment boundary. + else { + // In this case, the segment must be of 19 digits, thus + // the third subsegment should be consisting of a genuine digit from + // the input. + should_round_up = third_subsegment > 5 || + (third_subsegment == 5 && + ((digits & 1) != 0 || has_more_segments)); + } + } + + // Round-up if necessary. + if (should_round_up) { + ++buf[precision - 1]; + for (int i = precision - 1; i > 0 && buf[i] > '9'; --i) { + buf[i] = '0'; + ++buf[i - 1]; + } + if (buf[0] > '9') { + buf[0] = '1'; + if (fixed) + buf[precision++] = '0'; + else + ++exp; + } + } + buf.try_resize(to_unsigned(precision)); + } + } // if (digits_in_the_first_segment > precision) + else { + // Adjust the exponent for its use in Dragon4. + exp += digits_in_the_first_segment - 1; + } } - - template ::value)> - iterator operator()(T value) { - if (specs_) - writer_.write_int(value, *specs_); - else - writer_.write(value); - return out(); + if (use_dragon) { + auto f = basic_fp(); + bool is_predecessor_closer = binary32 ? f.assign(static_cast(value)) + : f.assign(converted_value); + if (is_predecessor_closer) dragon_flags |= dragon::predecessor_closer; + if (fixed) dragon_flags |= dragon::fixed; + // Limit precision to the maximum possible number of significant digits in + // an IEEE754 double because we don't need to generate zeros. + const int max_double_digits = 767; + if (precision > max_double_digits) precision = max_double_digits; + format_dragon(f, dragon_flags, precision, buf, exp); + } + if (!fixed && !specs.alt()) { + // Remove trailing zeros. + auto num_digits = buf.size(); + while (num_digits > 0 && buf[num_digits - 1] == '0') { + --num_digits; + ++exp; + } + buf.try_resize(num_digits); } + return exp; +} - iterator operator()(char_type value) { - internal::handle_char_specs( - specs_, char_spec_handler(*this, static_cast(value))); - return out(); +template ::value)> +FMT_CONSTEXPR20 auto write(OutputIt out, T value, format_specs specs, + locale_ref loc = {}) -> OutputIt { + if (specs.localized() && write_loc(out, value, specs, loc)) return out; + + // Use signbit because value < 0 is false for NaN. + sign s = detail::signbit(value) ? sign::minus : specs.sign(); + + if (!detail::isfinite(value)) + return write_nonfinite(out, detail::isnan(value), specs, s); + + if (specs.align() == align::numeric && s != sign::none) { + *out++ = detail::getsign(s); + s = sign::none; + if (specs.width != 0) --specs.width; + } + + const int exp_upper = detail::exp_upper(); + int precision = specs.precision; + if (precision < 0) { + if (specs.type() != presentation_type::none) { + precision = 6; + } else if (is_fast_float::value && !is_constant_evaluated()) { + // Use Dragonbox for the shortest format. + auto dec = dragonbox::to_decimal(static_cast>(value)); + return write_float(out, dec, specs, s, exp_upper, loc); + } } - iterator operator()(bool value) { - if (specs_ && specs_->type) return (*this)(value ? 1 : 0); - write(value != 0); - return out(); + memory_buffer buffer; + if (specs.type() == presentation_type::hexfloat) { + if (s != sign::none) buffer.push_back(detail::getsign(s)); + format_hexfloat(convert_float(value), specs, buffer); + return write_bytes(out, {buffer.data(), buffer.size()}, + specs); } - template ::value)> - iterator operator()(T value) { - writer_.write_double(value, specs_ ? *specs_ : format_specs()); - return out(); - } + if (specs.type() == presentation_type::exp) { + if (precision == max_value()) + report_error("number is too big"); + else + ++precision; + if (specs.precision != 0) specs.set_alt(); + } else if (specs.type() == presentation_type::fixed) { + if (specs.precision != 0) specs.set_alt(); + } else if (precision == 0) { + precision = 1; + } + int exp = format_float(convert_float(value), precision, specs, + std::is_same(), buffer); + + specs.precision = precision; + auto f = big_decimal_fp{buffer.data(), static_cast(buffer.size()), exp}; + return write_float(out, f, specs, s, exp_upper, loc); +} - struct char_spec_handler : ErrorHandler { - arg_formatter_base& formatter; - char_type value; +template ::value)> +FMT_CONSTEXPR20 auto write(OutputIt out, T value) -> OutputIt { + if (is_constant_evaluated()) return write(out, value, format_specs()); + + auto s = detail::signbit(value) ? sign::minus : sign::none; + auto mask = exponent_mask>(); + if ((bit_cast(value) & mask) == mask) + return write_nonfinite(out, std::isnan(value), {}, s); + + auto dec = dragonbox::to_decimal(static_cast>(value)); + auto significand = dec.significand; + int significand_size = count_digits(significand); + int exponent = dec.exponent + significand_size - 1; + if (use_fixed(exponent, detail::exp_upper())) { + return write_fixed>( + out, dec, significand_size, Char('.'), {}, s); + } + + // Write value in the exponential format. + const char* prefix = "e+"; + int abs_exponent = exponent; + if (exponent < 0) { + abs_exponent = -exponent; + prefix = "e-"; + } + auto has_decimal_point = significand_size != 1; + size_t size = std::is_pointer::value + ? 0u + : to_unsigned((s != sign::none ? 1 : 0) + significand_size + + (has_decimal_point ? 1 : 0) + + (abs_exponent >= 100 ? 5 : 4)); + if (auto ptr = to_pointer(out, size)) { + if (s != sign::none) *ptr++ = Char('-'); + if (has_decimal_point) { + auto begin = ptr; + ptr = format_decimal(ptr, significand, significand_size + 1); + *begin = begin[1]; + begin[1] = '.'; + } else { + *ptr++ = static_cast('0' + significand); + } + if (std::is_same::value) { + memcpy(ptr, prefix, 2); + ptr += 2; + } else { + *ptr++ = prefix[0]; + *ptr++ = prefix[1]; + } + if (abs_exponent >= 100) { + *ptr++ = static_cast('0' + abs_exponent / 100); + abs_exponent %= 100; + } + write2digits(ptr, static_cast(abs_exponent)); + return select::value>(ptr + 2, out); + } + auto it = reserve(out, size); + if (s != sign::none) *it++ = Char('-'); + // Insert a decimal point after the first digit and add an exponent. + it = write_significand(it, significand, significand_size, 1, + has_decimal_point ? Char('.') : Char()); + *it++ = Char('e'); + it = write_exponent(exponent, it); + return base_iterator(out, it); +} - char_spec_handler(arg_formatter_base& f, char_type val) - : formatter(f), value(val) {} +template ::value && + !is_fast_float::value)> +inline auto write(OutputIt out, T value) -> OutputIt { + return write(out, value, {}); +} - void on_int() { - if (formatter.specs_) - formatter.writer_.write_int(value, *formatter.specs_); - else - formatter.writer_.write(value); - } - void on_char() { formatter.write_char(value); } - }; +template +auto write(OutputIt out, monostate, format_specs = {}, locale_ref = {}) + -> OutputIt { + FMT_ASSERT(false, ""); + return out; +} - struct cstring_spec_handler : internal::error_handler { - arg_formatter_base& formatter; - const char_type* value; +template +FMT_CONSTEXPR auto write(OutputIt out, basic_string_view value) + -> OutputIt { + return copy_noinline(value.begin(), value.end(), out); +} - cstring_spec_handler(arg_formatter_base& f, const char_type* val) - : formatter(f), value(val) {} +template ::value)> +constexpr auto write(OutputIt out, const T& value) -> OutputIt { + return write(out, to_string_view(value)); +} - void on_string() { formatter.write(value); } - void on_pointer() { formatter.write_pointer(value); } - }; +// FMT_ENABLE_IF() condition separated to workaround an MSVC bug. +template < + typename Char, typename OutputIt, typename T, + bool check = std::is_enum::value && !std::is_same::value && + mapped_type_constant::value != type::custom_type, + FMT_ENABLE_IF(check)> +FMT_CONSTEXPR auto write(OutputIt out, T value) -> OutputIt { + return write(out, static_cast>(value)); +} - iterator operator()(const char_type* value) { - if (!specs_) return write(value), out(); - internal::handle_cstring_type_spec(specs_->type, - cstring_spec_handler(*this, value)); - return out(); - } +template ::value)> +FMT_CONSTEXPR auto write(OutputIt out, T value, const format_specs& specs = {}, + locale_ref = {}) -> OutputIt { + return specs.type() != presentation_type::none && + specs.type() != presentation_type::string + ? write(out, value ? 1 : 0, specs, {}) + : write_bytes(out, value ? "true" : "false", specs); +} - iterator operator()(basic_string_view value) { - if (specs_) { - internal::check_string_type_spec(specs_->type, internal::error_handler()); - writer_.write(value, *specs_); - } else { - writer_.write(value); - } - return out(); - } +template +FMT_CONSTEXPR auto write(OutputIt out, Char value) -> OutputIt { + auto it = reserve(out, 1); + *it++ = value; + return base_iterator(out, it); +} - iterator operator()(const void* value) { - if (specs_) - check_pointer_type_spec(specs_->type, internal::error_handler()); - write_pointer(value); - return out(); - } -}; +template +FMT_CONSTEXPR20 auto write(OutputIt out, const Char* value) -> OutputIt { + if (value) return write(out, basic_string_view(value)); + report_error("string pointer is null"); + return out; +} -template FMT_CONSTEXPR bool is_name_start(Char c) { - return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || '_' == c; +template ::value)> +auto write(OutputIt out, const T* value, const format_specs& specs = {}, + locale_ref = {}) -> OutputIt { + return write_ptr(out, bit_cast(value), &specs); } -// Parses the range [begin, end) as an unsigned integer. This function assumes -// that the range is non-empty and the first character is a digit. -template -FMT_CONSTEXPR int parse_nonnegative_int(const Char*& begin, const Char* end, - ErrorHandler&& eh) { - assert(begin != end && '0' <= *begin && *begin <= '9'); - if (*begin == '0') { - ++begin; - return 0; - } - unsigned value = 0; - // Convert to unsigned to prevent a warning. - constexpr unsigned max_int = (std::numeric_limits::max)(); - unsigned big = max_int / 10; - do { - // Check for overflow. - if (value > big) { - value = max_int + 1; - break; - } - value = value * 10 + unsigned(*begin - '0'); - ++begin; - } while (begin != end && '0' <= *begin && *begin <= '9'); - if (value > max_int) eh.on_error("number is too big"); - return static_cast(value); +template ::value == + type::custom_type && + !std::is_fundamental::value)> +FMT_CONSTEXPR auto write(OutputIt out, const T& value) -> OutputIt { + auto f = formatter(); + auto parse_ctx = parse_context({}); + f.parse(parse_ctx); + auto ctx = basic_format_context(out, {}, {}); + return f.format(value, ctx); } -template class custom_formatter { - private: - using char_type = typename Context::char_type; +template +using is_builtin = + bool_constant::value || FMT_BUILTIN_TYPES>; - basic_parse_context& parse_ctx_; - Context& ctx_; +// An argument visitor that formats the argument and writes it via the output +// iterator. It's a class and not a generic lambda for compatibility with C++11. +template struct default_arg_formatter { + using context = buffered_context; - public: - explicit custom_formatter(basic_parse_context& parse_ctx, - Context& ctx) - : parse_ctx_(parse_ctx), ctx_(ctx) {} + basic_appender out; - bool operator()(typename basic_format_arg::handle h) const { - h.format(parse_ctx_, ctx_); - return true; + void operator()(monostate) { report_error("argument not found"); } + + template ::value)> + void operator()(T value) { + write(out, value); } - template bool operator()(T) const { return false; } -}; + template ::value)> + void operator()(T) { + FMT_ASSERT(false, ""); + } -template -using is_integer = - bool_constant::value && !std::is_same::value && - !std::is_same::value && - !std::is_same::value>; + void operator()(typename basic_format_arg::handle h) { + // Use a null locale since the default format must be unlocalized. + auto parse_ctx = parse_context({}); + auto format_ctx = context(out, {}, {}); + h.format(parse_ctx, format_ctx); + } +}; -template class width_checker { - public: - explicit FMT_CONSTEXPR width_checker(ErrorHandler& eh) : handler_(eh) {} +template struct arg_formatter { + basic_appender out; + const format_specs& specs; + FMT_NO_UNIQUE_ADDRESS locale_ref locale; - template ::value)> - FMT_CONSTEXPR unsigned long long operator()(T value) { - if (is_negative(value)) handler_.on_error("negative width"); - return static_cast(value); + template ::value)> + FMT_CONSTEXPR FMT_INLINE void operator()(T value) { + detail::write(out, value, specs, locale); } - template ::value)> - FMT_CONSTEXPR unsigned long long operator()(T) { - handler_.on_error("width is not integer"); - return 0; + template ::value)> + void operator()(T) { + FMT_ASSERT(false, ""); } - private: - ErrorHandler& handler_; + void operator()(typename basic_format_arg>::handle) { + // User-defined types are handled separately because they require access + // to the parse context. + } }; -template class precision_checker { - public: - explicit FMT_CONSTEXPR precision_checker(ErrorHandler& eh) : handler_(eh) {} - +struct dynamic_spec_getter { template ::value)> - FMT_CONSTEXPR unsigned long long operator()(T value) { - if (is_negative(value)) handler_.on_error("negative precision"); - return static_cast(value); + FMT_CONSTEXPR auto operator()(T value) -> unsigned long long { + return is_negative(value) ? ~0ull : static_cast(value); } template ::value)> - FMT_CONSTEXPR unsigned long long operator()(T) { - handler_.on_error("precision is not integer"); + FMT_CONSTEXPR auto operator()(T) -> unsigned long long { + report_error("width/precision is not integer"); return 0; } - - private: - ErrorHandler& handler_; }; -// A format specifier handler that sets fields in basic_format_specs. -template class specs_setter { - public: - explicit FMT_CONSTEXPR specs_setter(basic_format_specs& specs) - : specs_(specs) {} - - FMT_CONSTEXPR specs_setter(const specs_setter& other) - : specs_(other.specs_) {} - - FMT_CONSTEXPR void on_align(align_t align) { specs_.align = align; } - FMT_CONSTEXPR void on_fill(Char fill) { specs_.fill[0] = fill; } - FMT_CONSTEXPR void on_plus() { specs_.sign = sign::plus; } - FMT_CONSTEXPR void on_minus() { specs_.sign = sign::minus; } - FMT_CONSTEXPR void on_space() { specs_.sign = sign::space; } - FMT_CONSTEXPR void on_hash() { specs_.alt = true; } - - FMT_CONSTEXPR void on_zero() { - specs_.align = align::numeric; - specs_.fill[0] = Char('0'); - } - - FMT_CONSTEXPR void on_width(int width) { specs_.width = width; } - FMT_CONSTEXPR void on_precision(int precision) { - specs_.precision = precision; - } - FMT_CONSTEXPR void end_precision() {} +template +FMT_CONSTEXPR void handle_dynamic_spec( + arg_id_kind kind, int& value, + const arg_ref& ref, Context& ctx) { + if (kind == arg_id_kind::none) return; + auto arg = + kind == arg_id_kind::index ? ctx.arg(ref.index) : ctx.arg(ref.name); + if (!arg) report_error("argument not found"); + unsigned long long result = arg.visit(dynamic_spec_getter()); + if (result > to_unsigned(max_value())) + report_error("width/precision is out of range"); + value = static_cast(result); +} - FMT_CONSTEXPR void on_type(Char type) { - specs_.type = static_cast(type); - } +#if FMT_USE_NONTYPE_TEMPLATE_ARGS +template Str> +struct static_named_arg : view { + static constexpr auto name = Str.data; - protected: - basic_format_specs& specs_; + const T& value; + static_named_arg(const T& v) : value(v) {} }; -template class numeric_specs_checker { - public: - FMT_CONSTEXPR numeric_specs_checker(ErrorHandler& eh, internal::type arg_type) - : error_handler_(eh), arg_type_(arg_type) {} +template Str> +struct is_named_arg> : std::true_type {}; - FMT_CONSTEXPR void require_numeric_argument() { - if (!is_arithmetic(arg_type_)) - error_handler_.on_error("format specifier requires numeric argument"); - } +template Str> +struct is_static_named_arg> : std::true_type { +}; - FMT_CONSTEXPR void check_sign() { - require_numeric_argument(); - if (is_integral(arg_type_) && arg_type_ != int_type && - arg_type_ != long_long_type && arg_type_ != internal::char_type) { - error_handler_.on_error("format specifier requires signed argument"); - } +template Str> +struct udl_arg { + template auto operator=(T&& value) const { + return static_named_arg(std::forward(value)); } +}; +#else +template struct udl_arg { + const Char* str; - FMT_CONSTEXPR void check_precision() { - if (is_integral(arg_type_) || arg_type_ == internal::pointer_type) - error_handler_.on_error("precision not allowed for this argument type"); + template auto operator=(T&& value) const -> named_arg { + return {str, std::forward(value)}; } - - private: - ErrorHandler& error_handler_; - internal::type arg_type_; }; +#endif // FMT_USE_NONTYPE_TEMPLATE_ARGS -// A format specifier handler that checks if specifiers are consistent with the -// argument type. -template class specs_checker : public Handler { - public: - FMT_CONSTEXPR specs_checker(const Handler& handler, internal::type arg_type) - : Handler(handler), checker_(*this, arg_type) {} - - FMT_CONSTEXPR specs_checker(const specs_checker& other) - : Handler(other), checker_(*this, other.arg_type_) {} +template struct format_handler { + parse_context parse_ctx; + buffered_context ctx; - FMT_CONSTEXPR void on_align(align_t align) { - if (align == align::numeric) checker_.require_numeric_argument(); - Handler::on_align(align); + void on_text(const Char* begin, const Char* end) { + copy_noinline(begin, end, ctx.out()); } - FMT_CONSTEXPR void on_plus() { - checker_.check_sign(); - Handler::on_plus(); + FMT_CONSTEXPR auto on_arg_id() -> int { return parse_ctx.next_arg_id(); } + FMT_CONSTEXPR auto on_arg_id(int id) -> int { + parse_ctx.check_arg_id(id); + return id; } - - FMT_CONSTEXPR void on_minus() { - checker_.check_sign(); - Handler::on_minus(); + FMT_CONSTEXPR auto on_arg_id(basic_string_view id) -> int { + parse_ctx.check_arg_id(id); + int arg_id = ctx.arg_id(id); + if (arg_id < 0) report_error("argument not found"); + return arg_id; } - FMT_CONSTEXPR void on_space() { - checker_.check_sign(); - Handler::on_space(); + FMT_INLINE void on_replacement_field(int id, const Char*) { + ctx.arg(id).visit(default_arg_formatter{ctx.out()}); } - FMT_CONSTEXPR void on_hash() { - checker_.require_numeric_argument(); - Handler::on_hash(); - } + auto on_format_specs(int id, const Char* begin, const Char* end) + -> const Char* { + auto arg = ctx.arg(id); + if (!arg) report_error("argument not found"); + // Not using a visitor for custom types gives better codegen. + if (arg.format_custom(begin, parse_ctx, ctx)) return parse_ctx.begin(); - FMT_CONSTEXPR void on_zero() { - checker_.require_numeric_argument(); - Handler::on_zero(); - } + auto specs = dynamic_format_specs(); + begin = parse_format_specs(begin, end, specs, parse_ctx, arg.type()); + if (specs.dynamic()) { + handle_dynamic_spec(specs.dynamic_width(), specs.width, specs.width_ref, + ctx); + handle_dynamic_spec(specs.dynamic_precision(), specs.precision, + specs.precision_ref, ctx); + } - FMT_CONSTEXPR void end_precision() { checker_.check_precision(); } + arg.visit(arg_formatter{ctx.out(), specs, ctx.locale()}); + return begin; + } - private: - numeric_specs_checker checker_; + FMT_NORETURN void on_error(const char* message) { report_error(message); } }; -template