Templates for fundamental properties of types
The Boost type-traits library contains a set of very specific traits classes, each of which encapsulate a single trait
from the C++ type system; for example, is a type a pointer or a reference type? Or does a type have a trivial constructor, or a const-qualifier?
The type-traits classes share a unified design: each class inherits from the type true_type if the type has the specified property and inherits from false_type otherwise.
The type-traits library also contains a set of classes that perform a specific transformation on a type; for example, they can remove a top-level const or
volatile qualifier from a type. Each class that performs a transformation defines a single typedef-member type that is the result of the transformation.
Depends (2)
Reviews
Builds
| toolchain |
public-0.18.1 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-gcc_13 |
| timestamp |
2026-10-08 12:37:18 UTC (09:28:45 hours ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_fedora_43-gcc_15-bindist |
| timestamp |
2026-10-07 11:59:24 UTC (01 10:06:39 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-microsoft-win32-msvc14.5 |
| tgt config |
windows_10-clang_21_msvc_18-static_O2 |
| timestamp |
2026-10-07 06:15:41 UTC (01 15:50:21 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-microsoft-win32-msvc14.5 |
| tgt config |
windows_10-clang_21_msvc_18-O2 |
| timestamp |
2026-10-07 06:15:29 UTC (01 15:50:34 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-microsoft-win32-msvc14.5 |
| tgt config |
windows_10-clang_21_msvc_18 |
| timestamp |
2026-10-07 06:14:26 UTC (01 15:51:37 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-microsoft-win32-msvc14.5 |
| tgt config |
windows_10-msvc_18-O2 |
| timestamp |
2026-10-07 05:46:16 UTC (01 16:19:47 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-microsoft-win32-msvc14.5 |
| tgt config |
windows_10-msvc_18-static_O2 |
| timestamp |
2026-10-07 05:45:38 UTC (01 16:20:24 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-microsoft-win32-msvc14.5 |
| tgt config |
windows_10-msvc_18 |
| timestamp |
2026-10-07 05:45:28 UTC (01 16:20:34 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-w64-mingw32 |
| tgt config |
windows_10-gcc_15.2_mingw_w64-static_O2 |
| timestamp |
2026-10-04 06:56:11 UTC (04 15:09:51 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-w64-mingw32 |
| tgt config |
windows_10-gcc_15.2_mingw_w64-O2 |
| timestamp |
2026-10-04 06:55:47 UTC (04 15:10:16 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-w64-mingw32 |
| tgt config |
windows_10-gcc_15.2_mingw_w64 |
| timestamp |
2026-10-04 06:55:33 UTC (04 15:10:29 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_ubuntu_26.04-gcc_15-bindist |
| timestamp |
2026-10-03 23:46:51 UTC (04 22:19:12 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-apple-darwin23.5.0 |
| tgt config |
macos_14-clang_15.0-static_O3 |
| timestamp |
2026-10-02 02:45:14 UTC (06 19:20:49 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-apple-darwin23.5.0 |
| tgt config |
macos_14-clang_15.0-O3 |
| timestamp |
2026-10-02 02:44:10 UTC (06 19:21:52 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-apple-darwin23.5.0 |
| tgt config |
macos_14-clang_15.0 |
| timestamp |
2026-10-02 02:43:01 UTC (06 19:23:01 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_fedora_44-gcc_16-bindist |
| timestamp |
2026-10-01 09:34:05 UTC (07 12:31:57 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-clang_18_libc++-static_O3 |
| timestamp |
2026-09-28 09:53:49 UTC (10 12:12:14 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-clang_18_libc++-O3 |
| timestamp |
2026-09-28 09:52:44 UTC (10 12:13:18 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-clang_18_libc++ |
| timestamp |
2026-09-28 09:52:38 UTC (10 12:13:25 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-clang_18-O3 |
| timestamp |
2026-09-28 09:51:53 UTC (10 12:14:09 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-clang_18-static_O3 |
| timestamp |
2026-09-28 09:51:28 UTC (10 12:14:34 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-clang_18 |
| timestamp |
2026-09-28 09:51:00 UTC (10 12:15:03 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_13-clang_22_libc++-static_O3 |
| timestamp |
2026-09-27 01:06:59 UTC (11 20:59:04 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_13-clang_22_libc++ |
| timestamp |
2026-09-27 01:06:55 UTC (11 20:59:07 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_13-clang_22_libc++-O3 |
| timestamp |
2026-09-27 01:06:20 UTC (11 20:59:42 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_13-clang_22-O3 |
| timestamp |
2026-09-27 01:06:15 UTC (11 20:59:48 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_13-clang_22-static_O3 |
| timestamp |
2026-09-27 01:06:11 UTC (11 20:59:51 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_13-clang_22 |
| timestamp |
2026-09-27 01:05:40 UTC (11 21:00:22 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-microsoft-win32-msvc14.3 |
| tgt config |
windows_10-msvc_17 |
| timestamp |
2026-09-26 18:42:14 UTC (12 03:23:49 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-apple-darwin22.5.0 |
| tgt config |
macos_13-clang_15.0 |
| timestamp |
2026-09-26 08:49:43 UTC (12 13:16:19 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_13-gcc_16-static_O3 |
| timestamp |
2026-09-26 08:47:40 UTC (12 13:18:23 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_13-gcc_16-ndebug_O3 |
| timestamp |
2026-09-26 08:47:22 UTC (12 13:18:40 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_13-gcc_14-bindist |
| timestamp |
2026-09-26 08:47:11 UTC (12 13:18:51 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_13-clang_21_libc++ |
| timestamp |
2026-09-26 08:47:00 UTC (12 13:19:03 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_13-gcc_16 |
| timestamp |
2026-09-26 08:46:47 UTC (12 13:19:15 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_13-gcc_15 |
| timestamp |
2026-09-26 08:46:38 UTC (12 13:19:24 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_13-gcc_16-O3 |
| timestamp |
2026-09-26 08:46:29 UTC (12 13:19:33 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_ubuntu_24.04-gcc_13-bindist |
| timestamp |
2026-09-26 08:46:18 UTC (12 13:19:45 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_13-gcc_15-O3 |
| timestamp |
2026-09-26 08:46:15 UTC (12 13:19:47 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-linux-gnu |
| tgt config |
linux_debian_13-clang_21 |
| timestamp |
2026-09-26 08:46:01 UTC (12 13:20:02 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-freebsd15.0 |
| tgt config |
freebsd_15-clang_19-static_O3 |
| timestamp |
2026-09-26 08:45:30 UTC (12 13:20:32 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-freebsd15.0 |
| tgt config |
freebsd_15-clang_19-O3 |
| timestamp |
2026-09-26 08:44:58 UTC (12 13:21:05 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-freebsd15.0 |
| tgt config |
freebsd_15-clang_19 |
| timestamp |
2026-09-26 08:44:52 UTC (12 13:21:10 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
x86_64-freebsd14.1 |
| tgt config |
freebsd_14-clang_18 |
| timestamp |
2026-09-26 08:44:21 UTC (12 13:21:41 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-gcc_14-static_O3 |
| timestamp |
2026-09-26 07:52:59 UTC (12 14:13:03 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-gcc_14-ndebug_O3 |
| timestamp |
2026-09-26 07:52:26 UTC (12 14:13:36 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-gcc_14 |
| timestamp |
2026-09-26 07:51:49 UTC (12 14:14:13 days ago) |
| result |
success | log | rebuild |
| toolchain |
public-0.18.1 |
| target |
aarch64-linux-gnu |
| tgt config |
linux_debian_12-gcc_14-O3 |
| timestamp |
2026-09-26 07:51:48 UTC (12 14:14:14 days ago) |
| result |
success | log | rebuild |
| target |
x86_64-apple-darwin23.5.0 |
| tgt config |
macos_14-gcc_14_homebrew |
| result |
excluded (https://github) |
| target |
x86_64-apple-darwin23.5.0 |
| tgt config |
macos_14-gcc_14_homebrew-O3 |
| result |
excluded (https://github) |
| target |
x86_64-apple-darwin23.5.0 |
| tgt config |
macos_14-gcc_14_homebrew-static_O3 |
| result |
excluded (https://github) |