Build error: error: unknown type name 'uint8_t', 'uint32_t', etc.

[GuillaumeDua]

Context

• OS: Ubuntu-24.04
• STL: libstdc++-15-dev:arm64 (15.2.0-14ubuntu1~24~ppa1)
• Compiler: Clang 21.1.8
• SQLiteCpp release: 3.3.2

Additional information

👉 SQLiteCpp release 3.3.3 works just fine !

So you may choose to close this issue with no futher actions, if you want to.

• The build works just fine with libstdc++-13
• Most likely, that's caused by a missing include pp directive #include <cstdint>
• Perhaps consider using std:: namespace rather than global namespace lookup which ends to C definitions ?

Build output

[build] [12/225   1% :: 0.362] Building CXX object _deps/sqlitecpp-build/CMakeFiles/SQLiteCpp.dir/src/Backup.cpp.o
[build] FAILED: _deps/sqlitecpp-build/CMakeFiles/SQLiteCpp.dir/src/Backup.cpp.o 
[build] /usr/bin/clang++ -DSQLITE_ENABLE_COLUMN_METADATA -DSQLITE_THREADSAFE=2 -I/workspace/build/Debug/_deps/sqlitecpp-src/include -I/workspace/build/Debug/_deps/sqlitecpp-src/sqlite3 -Wall -Wextra -Wpedantic -Wswitch-enum -Wshadow -Wno-long-long -g -std=gnu++11 -fPIC -fprofile-instr-generate -fcoverage-mapping -Werror=return-type -pedantic-errors -Wall -Wextra -Wshadow -Wconversion -Wsign-conversion -Wno-unknown-pragmas -stdlib=libstdc++ -fstack-protector -Wno-sign-conversion -MD -MT _deps/sqlitecpp-build/CMakeFiles/SQLiteCpp.dir/src/Backup.cpp.o -MF _deps/sqlitecpp-build/CMakeFiles/SQLiteCpp.dir/src/Backup.cpp.o.d -o _deps/sqlitecpp-build/CMakeFiles/SQLiteCpp.dir/src/Backup.cpp.o -c /workspace/build/Debug/_deps/sqlitecpp-src/src/Backup.cpp
[build] In file included from /workspace/build/Debug/_deps/sqlitecpp-src/src/Backup.cpp:12:
[build] In file included from /workspace/build/Debug/_deps/sqlitecpp-src/include/SQLiteCpp/Backup.h:15:
[build] In file included from /workspace/build/Debug/_deps/sqlitecpp-src/include/SQLiteCpp/Database.h:14:
[build] In file included from /workspace/build/Debug/_deps/sqlitecpp-src/include/SQLiteCpp/Column.h:14:
[build] /workspace/build/Debug/_deps/sqlitecpp-src/include/SQLiteCpp/Statement.h:132:39: error: unknown type name 'uint32_t'
[build]   132 |     void bind(const int aIndex, const uint32_t      aValue);
[build]       |                                       ^
[build] /workspace/build/Debug/_deps/sqlitecpp-src/include/SQLiteCpp/Statement.h:203:41: error: unknown type name 'uint32_t'
[build]   203 |     void bind(const char* apName, const uint32_t        aValue)
[build]       |                                         ^
[build] /workspace/build/Debug/_deps/sqlitecpp-src/include/SQLiteCpp/Statement.h:304:47: error: unknown type name 'uint32_t'
[build]   304 |     void bind(const std::string& aName, const uint32_t        aValue)
[build]       |                                               ^
[build] In file included from /workspace/build/Debug/_deps/sqlitecpp-src/src/Backup.cpp:12:
[build] In file included from /workspace/build/Debug/_deps/sqlitecpp-src/include/SQLiteCpp/Backup.h:15:
[build] In file included from /workspace/build/Debug/_deps/sqlitecpp-src/include/SQLiteCpp/Database.h:14:
[build] /workspace/build/Debug/_deps/sqlitecpp-src/include/SQLiteCpp/Column.h:80:5: error: unknown type name 'uint32_t'
[build]    80 |     uint32_t    getUInt() const noexcept;
[build]       |     ^
[build] /workspace/build/Debug/_deps/sqlitecpp-src/include/SQLiteCpp/Column.h:171:14: error: unknown type name 'uint8_t'
[build]   171 |     operator uint8_t() const
[build]       |              ^
[build] 5 errors generated.
[build] [12/225   1% :: 0.380] Building CXX object _deps/sqlitecpp-build/CMakeFiles/SQLiteCpp.dir/src/Exception.cpp.o
[build] [12/225   2% :: 0.434] Building CXX object _deps/sqlitecpp-build/CMakeFiles/SQLiteCpp.dir/src/Column.cpp.o
[build] FAILED: _deps/sqlitecpp-build/CMakeFiles/SQLiteCpp.dir/src/Column.cpp.o 
[build] /usr/bin/clang++ -DSQLITE_ENABLE_COLUMN_METADATA -DSQLITE_THREADSAFE=2 -I/workspace/build/Debug/_deps/sqlitecpp-src/include -I/workspace/build/Debug/_deps/sqlitecpp-src/sqlite3 -Wall -Wextra -Wpedantic -Wswitch-enum -Wshadow -Wno-long-long -g -std=gnu++11 -fPIC -fprofile-instr-generate -fcoverage-mapping -Werror=return-type -pedantic-errors -Wall -Wextra -Wshadow -Wconversion -Wsign-conversion -Wno-unknown-pragmas -stdlib=libstdc++ -fstack-protector -Wno-sign-conversion -MD -MT _deps/sqlitecpp-build/CMakeFiles/SQLiteCpp.dir/src/Column.cpp.o -MF _deps/sqlitecpp-build/CMakeFiles/SQLiteCpp.dir/src/Column.cpp.o.d -o _deps/sqlitecpp-build/CMakeFiles/SQLiteCpp.dir/src/Column.cpp.o -c /workspace/build/Debug/_deps/sqlitecpp-src/src/Column.cpp
[build] In file included from /workspace/build/Debug/_deps/sqlitecpp-src/src/Column.cpp:11:
[build] In file included from /workspace/build/Debug/_deps/sqlitecpp-src/include/SQLiteCpp/Column.h:14:
[build] /workspace/build/Debug/_deps/sqlitecpp-src/include/SQLiteCpp/Statement.h:132:39: error: unknown type name 'uint32_t'
[build]   132 |     void bind(const int aIndex, const uint32_t      aValue);
[build]       |                                       ^
[build] /workspace/build/Debug/_deps/sqlitecpp-src/include/SQLiteCpp/Statement.h:203:41: error: unknown type name 'uint32_t'
[build]   203 |     void bind(const char* apName, const uint32_t        aValue)
[build]       |                                         ^
[build] /workspace/build/Debug/_deps/sqlitecpp-src/include/SQLiteCpp/Statement.h:304:47: error: unknown type name 'uint32_t'
[build]   304 |     void bind(const std::string& aName, const uint32_t        aValue)
[build]       |                                               ^
[build] In file included from /workspace/build/Debug/_deps/sqlitecpp-src/src/Column.cpp:11:
[build] /workspace/build/Debug/_deps/sqlitecpp-src/include/SQLiteCpp/Column.h:80:5: error: unknown type name 'uint32_t'
[build]    80 |     uint32_t    getUInt() const noexcept;
[build]       |     ^
[build] /workspace/build/Debug/_deps/sqlitecpp-src/include/SQLiteCpp/Column.h:171:14: error: unknown type name 'uint8_t'
[build]   171 |     operator uint8_t() const
[build]       |              ^
[build] /workspace/build/Debug/_deps/sqlitecpp-src/src/Column.cpp:29:5: error: member initializer 'mStmtPtr' does not name a non-static data member or base class
[build]    29 |     mStmtPtr(aStmtPtr),
[build]       |     ^~~~~~~~~~~~~~~~~~
[build] /workspace/build/Debug/_deps/sqlitecpp-src/src/Column.cpp:41:32: error: use of undeclared identifier 'mStmtPtr'
[build]    41 |     return sqlite3_column_name(mStmtPtr.get(), mIndex);
[build]       |                                ^~~~~~~~
[build] /workspace/build/Debug/_deps/sqlitecpp-src/src/Column.cpp:48:39: error: use of undeclared identifier 'mStmtPtr'
[build]    48 |     return sqlite3_column_origin_name(mStmtPtr.get(), mIndex);
[build]       |                                       ^~~~~~~~
[build] /workspace/build/Debug/_deps/sqlitecpp-src/src/Column.cpp:55:31: error: use of undeclared identifier 'mStmtPtr'
[build]    55 |     return sqlite3_column_int(mStmtPtr.get(), mIndex);
[build]       |                               ^~~~~~~~
[build] /workspace/build/Debug/_deps/sqlitecpp-src/src/Column.cpp:59:1: error: unknown type name 'uint32_t'
[build]    59 | uint32_t Column::getUInt() const noexcept
[build]       | ^
[build] /workspace/build/Debug/_deps/sqlitecpp-src/src/Column.cpp:67:33: error: use of undeclared identifier 'mStmtPtr'
[build]    67 |     return sqlite3_column_int64(mStmtPtr.get(), mIndex);
[build]       |                                 ^~~~~~~~
[build] /workspace/build/Debug/_deps/sqlitecpp-src/src/Column.cpp:73:34: error: use of undeclared identifier 'mStmtPtr'
[build]    73 |     return sqlite3_column_double(mStmtPtr.get(), mIndex);
[build]       |                                  ^~~~~~~~
[build] /workspace/build/Debug/_deps/sqlitecpp-src/src/Column.cpp:79:68: error: use of undeclared identifier 'mStmtPtr'
[build]    79 |     auto pText = reinterpret_cast<const char*>(sqlite3_column_text(mStmtPtr.get(), mIndex));
[build]       |                                                                    ^~~~~~~~
[build] /workspace/build/Debug/_deps/sqlitecpp-src/src/Column.cpp:86:32: error: use of undeclared identifier 'mStmtPtr'
[build]    86 |     return sqlite3_column_blob(mStmtPtr.get(), mIndex);
[build]       |                                ^~~~~~~~
[build] /workspace/build/Debug/_deps/sqlitecpp-src/src/Column.cpp:96:32: error: use of undeclared identifier 'mStmtPtr'
[build]    96 |     (void)sqlite3_column_bytes(mStmtPtr.get(), mIndex);
[build]       |                                ^~~~~~~~
[build] /workspace/build/Debug/_deps/sqlitecpp-src/src/Column.cpp:97:63: error: use of undeclared identifier 'mStmtPtr'
[build]    97 |     auto data = static_cast<const char *>(sqlite3_column_blob(mStmtPtr.get(), mIndex));
[build]       |                                                               ^~~~~~~~
[build] /workspace/build/Debug/_deps/sqlitecpp-src/src/Column.cpp:101:51: error: use of undeclared identifier 'mStmtPtr'
[build]   101 |     return std::string(data, sqlite3_column_bytes(mStmtPtr.get(), mIndex));
[build]       |                                                   ^~~~~~~~
[build] /workspace/build/Debug/_deps/sqlitecpp-src/src/Column.cpp:107:32: error: use of undeclared identifier 'mStmtPtr'
[build]   107 |     return sqlite3_column_type(mStmtPtr.get(), mIndex);
[build]       |                                ^~~~~~~~
[build] /workspace/build/Debug/_deps/sqlitecpp-src/src/Column.cpp:113:33: error: use of undeclared identifier 'mStmtPtr'
[build]   113 |     return sqlite3_column_bytes(mStmtPtr.get(), mIndex);
[build]       |                                 ^~~~~~~~
[build] 19 errors generated.
[build] [12/225   2% :: 0.472] Building CXX object _deps/fmt-build/CMakeFiles/fmt.dir/src/os.cc.o
[build] [12/225   3% :: 0.554] Building CXX object _deps/sqlitecpp-build/CMakeFiles/SQLiteCpp.dir/src/Database.cpp.o
[build] FAILED: _deps/sqlitecpp-build/CMakeFiles/SQLiteCpp.dir/src/Database.cpp.o 
[build] /usr/bin/clang++ -DSQLITE_ENABLE_COLUMN_METADATA -DSQLITE_THREADSAFE=2 -I/workspace/build/Debug/_deps/sqlitecpp-src/include -I/workspace/build/Debug/_deps/sqlitecpp-src/sqlite3 -Wall -Wextra -Wpedantic -Wswitch-enum -Wshadow -Wno-long-long -g -std=gnu++11 -fPIC -fprofile-instr-generate -fcoverage-mapping -Werror=return-type -pedantic-errors -Wall -Wextra -Wshadow -Wconversion -Wsign-conversion -Wno-unknown-pragmas -stdlib=libstdc++ -fstack-protector -Wno-sign-conversion -MD -MT _deps/sqlitecpp-build/CMakeFiles/SQLiteCpp.dir/src/Database.cpp.o -MF _deps/sqlitecpp-build/CMakeFiles/SQLiteCpp.dir/src/Database.cpp.o.d -o _deps/sqlitecpp-build/CMakeFiles/SQLiteCpp.dir/src/Database.cpp.o -c /workspace/build/Debug/_deps/sqlitecpp-src/src/Database.cpp
[build] In file included from /workspace/build/Debug/_deps/sqlitecpp-src/src/Database.cpp:11:
[build] In file included from /workspace/build/Debug/_deps/sqlitecpp-src/include/SQLiteCpp/Database.h:14:
[build] In file included from /workspace/build/Debug/_deps/sqlitecpp-src/include/SQLiteCpp/Column.h:14:
[build] /workspace/build/Debug/_deps/sqlitecpp-src/include/SQLiteCpp/Statement.h:132:39: error: unknown type name 'uint32_t'
[build]   132 |     void bind(const int aIndex, const uint32_t      aValue);
[build]       |                                       ^
[build] /workspace/build/Debug/_deps/sqlitecpp-src/include/SQLiteCpp/Statement.h:203:41: error: unknown type name 'uint32_t'
[build]   203 |     void bind(const char* apName, const uint32_t        aValue)
[build]       |                                         ^
[build] /workspace/build/Debug/_deps/sqlitecpp-src/include/SQLiteCpp/Statement.h:304:47: error: unknown type name 'uint32_t'
[build]   304 |     void bind(const std::string& aName, const uint32_t        aValue)
[build]       |                                               ^
[build] In file included from /workspace/build/Debug/_deps/sqlitecpp-src/src/Database.cpp:11:
[build] In file included from /workspace/build/Debug/_deps/sqlitecpp-src/include/SQLiteCpp/Database.h:14:
[build] /workspace/build/Debug/_deps/sqlitecpp-src/include/SQLiteCpp/Column.h:80:5: error: unknown type name 'uint32_t'
[build]    80 |     uint32_t    getUInt() const noexcept;
[build]       |     ^
[build] /workspace/build/Debug/_deps/sqlitecpp-src/include/SQLiteCpp/Column.h:171:14: error: unknown type name 'uint8_t'
[build]   171 |     operator uint8_t() const
[build]       |              ^
[build] 5 errors generated.

[UnixY2K]

sounds like undefined behavior, most compilers usually expose the c variants in their c++ headers internally, but cstdint says that is defined under the std namespace, the better solution would be to add std to each place where it is referenced to avoid it.

cstdint is already included on statement.h

SQLiteCpp/include/SQLiteCpp/Statement.h

Line 17 in b6fcb54

#include <cstdint>

do you think you can make a PR testing on your system making that change?

PD: might be a good idea to see if this can be added to test with stdlibc++ on the CI to avoid this in the future, but I guess that should be on a new issue

[GuillaumeDua]

do you think you can make a PR testing on your system making that change?

Sadly no, since that's my employer's system and we then moved to 3.3.3 to quickly fix the issue.
That's why I quickly edited the issue with it works when upgrading to SQLiteCPP 3.3.3, so you may choose to close this issue with no futher actions, if you want to..

might be a good idea to see if this can be added to test with stdlibc++

What I do on some projects is a github-action matrix with most toolchain combination that I care about.
But it's kinda costly, and may slow your features, bugfixes, and realese shipping process since you end up having one of the combination failing for some reason.

---

For the record, my common matrix:

• OS (Ubuntu/Debian, Fedora/RedHat, Windows, Apple)
• Plateforms (ARM, AMD, etc.)
• Compilers (GCC, Clang, msvc-cl) -> minimum supported version, lastest-stable version
  • Sometimes adding the upcoming prerelease version as a soft error (non-blocking) so one can forecast what's gonna break, if any.
• STL impl. (libc++, libstdc++)

[GuillaumeDua]

From my perspective, you can close this issue,
and if someone reopen it, then consider amending the 3.3.2 release by using std:: namespace on all integrals types.

[UnixY2K]

for now I made a PR for the undefined behavior in #536.
3.3.3 is mostly a bugfix release that took in mind this issue.

as for the CI I guess it would be a preference from SRombauts to see if he wants it under CMake, for Meson it would be a new setting in the CI matrix+a cross file to specify libstdc++ instead of the Ubuntu provided.

[dvtate]

The issue was a missing include.

v3.3.2 was released August 16, 2024:

The missing include was fixed September 7, 2024:

This is almost certainly the source of the errors you're seeing w/ v3.3.2.

Unless the following program fails to compile: https://godbolt.org/z/4GvEqbGze