"{fmt} is an open-source formatting library for C++. It can be used as a safe and fast alternative to (s)printf and iostreams."
See {fmt} documentation for usage and details.
Note: This is the source code for the build2 package of the {fmt} C++ library,
the actual library sources snapshot can be found in the ./upstream/ submodule.
Configuration Options
Experimental C++20 modules support
Modules support is WIP, both in the build2 package and also in fmt upstream. Latest versions of MSVC or Clang are recommended, and the most up-to-date version of the package with regards to modules compatibility can be used via git and the modules branch. For example, in project repositories.manifest:
Tests
Reviews
Builds
| toolchain |
public-0.17.0 |
| target |
x86_64-microsoft-win32-msvc14.3 |
| tgt config |
windows_10-msvc_17.8-O2 |
| timestamp |
2025-12-13 13:53:06 UTC (02:34:35 hours ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-microsoft-win32-msvc14.3 |
| tgt config |
windows_10-msvc_17.8-static_O2 |
| timestamp |
2025-12-13 13:52:32 UTC (02:35:09 hours ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-microsoft-win32-msvc14.3 |
| tgt config |
windows_10-clang_17_msvc_msvc_17.10 |
| timestamp |
2025-12-13 13:52:31 UTC (02:35:10 hours ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-microsoft-win32-msvc14.3 |
| tgt config |
windows_10-msvc_17.8 |
| timestamp |
2025-12-13 13:51:38 UTC (02:36:03 hours ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_12-gcc_13.1 |
| timestamp |
2025-12-13 13:37:02 UTC (02:50:39 hours ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-gcc_14-static_O3 |
| timestamp |
2025-12-13 12:49:25 UTC (03:38:15 hours ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-gcc_14-ndebug_O3 |
| timestamp |
2025-12-13 12:48:14 UTC (03:39:27 hours ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-gcc_14-O3 |
| timestamp |
2025-12-13 12:28:43 UTC (03:58:58 hours ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-gcc_14 |
| timestamp |
2025-12-13 12:26:27 UTC (04:01:14 hours ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-gcc_13 |
| timestamp |
2025-12-13 11:59:30 UTC (04:28:11 hours ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_12-clang_17_libc++ |
| timestamp |
2025-12-12 21:28:18 UTC (18:59:23 hours ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_fedora_40-gcc_14-bindist |
| timestamp |
2025-12-12 10:48:16 UTC (01 05:39:25 days ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-clang_18_libc++ |
| timestamp |
2025-12-12 04:48:58 UTC (01 11:38:43 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-clang_18 |
| timestamp |
2025-12-12 04:48:27 UTC (01 11:39:14 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-microsoft-win32-msvc14.3 |
| tgt config |
windows_10-clang_18_llvm_msvc_17.10-static_O2 |
| timestamp |
2025-12-11 20:55:37 UTC (01 19:32:04 days ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-microsoft-win32-msvc14.3 |
| tgt config |
windows_10-clang_18_llvm_msvc_17.10-O2 |
| timestamp |
2025-12-11 20:53:49 UTC (01 19:33:52 days ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-microsoft-win32-msvc14.3 |
| tgt config |
windows_10-clang_18_llvm_msvc_17.10 |
| timestamp |
2025-12-11 20:38:21 UTC (01 19:49:20 days ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-clang_17_libc++ |
| timestamp |
2025-12-11 20:01:56 UTC (01 20:25:45 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-microsoft-win32-msvc14.3 |
| tgt config |
windows_10-msvc_17.10-static_O2 |
| timestamp |
2025-12-11 18:02:20 UTC (01 22:25:21 days ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-microsoft-win32-msvc14.3 |
| tgt config |
windows_10-msvc_17.10-O2 |
| timestamp |
2025-12-11 18:01:32 UTC (01 22:26:09 days ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-microsoft-win32-msvc14.3 |
| tgt config |
windows_10-msvc_17.10 |
| timestamp |
2025-12-11 17:59:05 UTC (01 22:28:36 days ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-clang_18_libc++-static_O3 |
| timestamp |
2025-12-11 14:15:32 UTC (02 02:12:09 days ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-clang_18_libc++-O3 |
| timestamp |
2025-12-11 14:10:59 UTC (02 02:16:42 days ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-clang_18-static_O3 |
| timestamp |
2025-12-11 14:08:10 UTC (02 02:19:31 days ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-clang_18-O3 |
| timestamp |
2025-12-11 13:10:49 UTC (02 03:16:52 days ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_12-gcc_14-static_O3 |
| timestamp |
2025-12-10 18:04:37 UTC (02 22:23:03 days ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_12-gcc_14-ndebug_O3 |
| timestamp |
2025-12-10 18:02:01 UTC (02 22:25:40 days ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_ubuntu_24.04-gcc_13-bindist |
| timestamp |
2025-12-10 17:59:34 UTC (02 22:28:07 days ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_12-gcc_14-O3 |
| timestamp |
2025-12-10 17:58:04 UTC (02 22:29:37 days ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_12-gcc_12-bindist |
| timestamp |
2025-12-10 17:38:04 UTC (02 22:49:37 days ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_12-gcc_14 |
| timestamp |
2025-12-10 17:27:46 UTC (02 22:59:55 days ago) |
| result |
warning (test) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_12-clang_18 |
| result |
unbuilt |
| toolchain |
public-0.17.0 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_12-clang_18-O3 |
| result |
unbuilt |
| toolchain |
public-0.17.0 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_12-clang_18-static_O3 |
| result |
unbuilt |
| toolchain |
public-0.17.0 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_12-clang_18_libc++ |
| result |
unbuilt |
| toolchain |
public-0.17.0 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_12-clang_18_libc++-O3 |
| result |
unbuilt |
| toolchain |
public-0.17.0 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_12-clang_18_libc++-static_O3 |
| result |
unbuilt |
| toolchain |
public-0.17.0 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_fedora_39-gcc_13-bindist |
| result |
unbuilt |
| toolchain |
public-0.17.0 |
| target |
x86_64-apple-darwin22.5.0 |
| tgt config |
macos_13-clang_15.0 |
| result |
unbuilt |
| toolchain |
public-0.17.0 |
| target |
x86_64-apple-darwin23.5.0 |
| tgt config |
macos_14-clang_15.0 |
| result |
unbuilt |
| toolchain |
public-0.17.0 |
| target |
x86_64-apple-darwin23.5.0 |
| tgt config |
macos_14-clang_15.0-O3 |
| result |
unbuilt |
| toolchain |
public-0.17.0 |
| target |
x86_64-apple-darwin23.5.0 |
| tgt config |
macos_14-clang_15.0-static_O3 |
| result |
unbuilt |
| toolchain |
public-0.17.0 |
| target |
x86_64-apple-darwin23.5.0 |
| tgt config |
macos_14-gcc_14_homebrew |
| result |
unbuilt |
| toolchain |
public-0.17.0 |
| target |
x86_64-apple-darwin23.5.0 |
| tgt config |
macos_14-gcc_14_homebrew-O3 |
| result |
unbuilt |
| toolchain |
public-0.17.0 |
| target |
x86_64-apple-darwin23.5.0 |
| tgt config |
macos_14-gcc_14_homebrew-static_O3 |
| result |
unbuilt |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_12-clang_17 |
| result |
excluded (clang-17 bug with libstdc++ std::tuple (https://github) |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-clang_17 |
| result |
excluded (clang-17 bug with libstdc++ std::tuple (https://github) |
| target |
x86_64-freebsd13.3 |
| tgt config |
freebsd_13-clang_17 |
| result |
excluded (fmt tests failing, fixed on upstream master, pending removal next package release after 11) |
| target |
x86_64-freebsd14.1 |
| tgt config |
freebsd_14-clang_18 |
| result |
excluded (fmt tests failing, fixed on upstream master, pending removal next package release after 11) |
| target |
x86_64-freebsd14.1 |
| tgt config |
freebsd_14-clang_18-O3 |
| result |
excluded (fmt tests failing, fixed on upstream master, pending removal next package release after 11) |
| target |
x86_64-freebsd14.1 |
| tgt config |
freebsd_14-clang_18-static_O3 |
| result |
excluded (fmt tests failing, fixed on upstream master, pending removal next package release after 11) |
| target |
x86_64-w64-mingw32 |
| tgt config |
windows_10-gcc_13.2_mingw_w64 |
| result |
excluded (unknown error building installed tests 'error: unable to stat path D:\a\msys64\mingw64\lib\x86_64-w64-mingw32\14) |
| target |
x86_64-w64-mingw32 |
| tgt config |
windows_10-gcc_13.2_mingw_w64-O2 |
| result |
excluded (unknown error building installed tests 'error: unable to stat path D:\a\msys64\mingw64\lib\x86_64-w64-mingw32\14) |
| target |
x86_64-w64-mingw32 |
| tgt config |
windows_10-gcc_13.2_mingw_w64-static_O2 |
| result |
excluded (unknown error building installed tests 'error: unable to stat path D:\a\msys64\mingw64\lib\x86_64-w64-mingw32\14) |