"{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:
config.fmt.enable_modules : Set to true to build and provide the fmt C++ modules. If the compiler and C++ version don't support C++ modules (which is C++ > 20), this will result in a compilation failure. Set to true if $cxx.features.modules == true which means the configuration is set to enable C++ modules, false otherwise.
Reviews
Builds
| toolchain |
public-0.17.0 |
| target |
x86_64-microsoft-win32-msvc14.3 |
| tgt config |
windows_10-clang_18_llvm_msvc_17.10-O2 |
| timestamp |
2026-02-15 13:23:40 UTC (11:40:51 hours ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_12-gcc_12-bindist |
| timestamp |
2026-02-15 13:23:32 UTC (11:40:59 hours 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 |
2026-02-15 13:22:25 UTC (11:42:06 hours 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 |
| timestamp |
2026-02-15 13:20:56 UTC (11:43:35 hours ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-microsoft-win32-msvc14.3 |
| tgt config |
windows_10-msvc_17.8 |
| timestamp |
2026-02-15 13:16:36 UTC (11:47:55 hours ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-microsoft-win32-msvc14.3 |
| tgt config |
windows_10-msvc_17.8-static_O2 |
| timestamp |
2026-02-15 13:16:34 UTC (11:47:57 hours ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-microsoft-win32-msvc14.3 |
| tgt config |
windows_10-msvc_17.8-O2 |
| timestamp |
2026-02-15 13:16:02 UTC (11:48:29 hours ago) |
| result |
success | 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 |
2026-02-15 13:12:28 UTC (11:52:03 hours ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-w64-mingw32 |
| tgt config |
windows_10-gcc_13.2_mingw_w64-static_O2 |
| timestamp |
2026-02-15 13:12:20 UTC (11:52:11 hours ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-w64-mingw32 |
| tgt config |
windows_10-gcc_13.2_mingw_w64-O2 |
| timestamp |
2026-02-15 13:11:14 UTC (11:53:17 hours ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-w64-mingw32 |
| tgt config |
windows_10-gcc_13.2_mingw_w64 |
| timestamp |
2026-02-15 13:11:01 UTC (11:53:30 hours ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_ubuntu_24.04-gcc_13-bindist |
| timestamp |
2026-02-15 13:07:20 UTC (11:57:11 hours ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-freebsd13.3 |
| tgt config |
freebsd_13-clang_17 |
| timestamp |
2026-02-15 13:04:50 UTC (11:59:41 hours ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-freebsd14.1 |
| tgt config |
freebsd_14-clang_18-static_O3 |
| timestamp |
2026-02-15 13:00:19 UTC (12:04:12 hours ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-freebsd14.1 |
| tgt config |
freebsd_14-clang_18-O3 |
| timestamp |
2026-02-15 13:00:13 UTC (12:04:18 hours ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-freebsd14.1 |
| tgt config |
freebsd_14-clang_18 |
| timestamp |
2026-02-15 12:59:35 UTC (12:04:56 hours ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_12-clang_17_libc++ |
| timestamp |
2026-02-15 12:58:06 UTC (12:06:25 hours ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_12-clang_17 |
| timestamp |
2026-02-15 12:58:03 UTC (12:06:28 hours ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_12-gcc_13.1 |
| timestamp |
2026-02-15 12:56:51 UTC (12:07:40 hours ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-clang_18 |
| timestamp |
2026-02-15 12:42:44 UTC (12:21:47 hours ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_12-gcc_14-static_O3 |
| timestamp |
2026-02-12 12:11:43 UTC (03 12:52:48 days ago) |
| result |
warning (update) | 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 |
2026-02-12 12:10:05 UTC (03 12:54:26 days ago) |
| result |
warning (update) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_12-gcc_14-O3 |
| timestamp |
2026-02-12 12:09:34 UTC (03 12:54:57 days ago) |
| result |
warning (update) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_12-gcc_14 |
| timestamp |
2026-02-12 12:05:47 UTC (03 12:58:44 days ago) |
| result |
warning (update) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_fedora_40-gcc_14-bindist |
| timestamp |
2026-02-12 09:27:51 UTC (03 15:36:40 days ago) |
| result |
warning (update) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-gcc_13 |
| timestamp |
2026-02-12 05:46:22 UTC (03 19:18:09 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-clang_17 |
| timestamp |
2026-02-12 05:21:00 UTC (03 19:43:31 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-clang_17_libc++ |
| timestamp |
2026-02-12 05:15:41 UTC (03 19:48:50 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-O2 |
| timestamp |
2026-02-05 01:46:07 UTC (10 23:18:24 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 |
2026-02-05 01:45:03 UTC (10 23:19:28 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 |
| timestamp |
2026-02-05 01:44:25 UTC (10 23:20:06 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-clang_18_libc++-static_O3 |
| timestamp |
2026-02-04 03:30:46 UTC (11 21:33:45 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-clang_18_libc++ |
| timestamp |
2026-02-04 03:29:59 UTC (11 21:34:32 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-clang_18_libc++-O3 |
| timestamp |
2026-02-04 03:29:31 UTC (11 21:35:00 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-clang_18-static_O3 |
| timestamp |
2026-02-04 03:28:28 UTC (11 21:36:03 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-clang_18-O3 |
| timestamp |
2026-02-04 03:27:54 UTC (11 21:36:37 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-gcc_14-O3 |
| timestamp |
2026-02-02 22:27:18 UTC (13 02:37:13 days ago) |
| result |
warning (update) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-gcc_14-ndebug_O3 |
| timestamp |
2026-02-02 22:22:41 UTC (13 02:41:50 days ago) |
| result |
warning (update) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-gcc_14-static_O3 |
| timestamp |
2026-02-02 22:19:38 UTC (13 02:44:53 days ago) |
| result |
warning (update) | warning (test-installed) | log | rebuild |
| toolchain |
public-0.17.0 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-gcc_14 |
| timestamp |
2026-02-02 22:18:00 UTC (13 02:46:31 days ago) |
| result |
warning (update) | 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 |