libboost-optional/1.85.0

[full]

A value-semantic, type-safe wrapper for representing 'optional' (or 'nullable') objects of a given type. An optional object may or may not contain a value of the underlying type

A library for representing optional (nullable) objects in C++.

optional<int> readInt(); // this function may return either an int or a not-an-int

if (optional<int> oi = readInt()) // did I get a real int
  cout << "my int is: " << *oi;   // use my int
else
  cout << "I have no int";

For more information refer to the documentation provided with this library.

version 1.85.0
license BSL-1.0Boost Software License 1.0
repository https://pkg.cppget.org/1/stable
download libboost-optional-1.85.0.tar.gz
sha256 eb36e00d6801769c3932943eebac95fb78f448db7bd5bab2548e2e10846b97a2
project boost
url github.com/boostorg/optional
doc-url www.boost.org/doc/libs/1_85_0/libs/optional
package-url github.com/build2-packaging/boost
package-email packaging@build2.orgMailing list
topics C++Boost

Depends (10)

libboost-assert == 1.85.0
libboost-config == 1.85.0
libboost-core == 1.85.0
libboost-detail == 1.85.0
libboost-move == 1.85.0
libboost-predef == 1.85.0
libboost-static-assert == 1.85.0
libboost-throw-exception == 1.85.0
libboost-type-traits == 1.85.0
libboost-utility == 1.85.0

Reviews

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pass 1

Builds

toolchain public-0.17.0
target x86_64-freebsd13.3
tgt config freebsd_13-clang_17
timestamp 2025-07-10 23:07:46 UTC (06:33:28 hours ago)
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toolchain public-0.17.0
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tgt config freebsd_14-clang_18-static_O3
timestamp 2025-07-10 23:04:13 UTC (06:37:00 hours ago)
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toolchain public-0.17.0
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tgt config freebsd_14-clang_18-O3
timestamp 2025-07-10 22:12:34 UTC (07:28:39 hours ago)
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toolchain public-0.17.0
target x86_64-linux-gnu
tgt config linux_debian_12-clang_17_libc++
timestamp 2025-07-10 22:03:37 UTC (07:37:37 hours ago)
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toolchain public-0.17.0
target x86_64-freebsd14.1
tgt config freebsd_14-clang_18
timestamp 2025-07-10 21:55:16 UTC (07:45:58 hours ago)
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toolchain public-0.17.0
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tgt config linux_debian_12-clang_17
timestamp 2025-07-10 21:44:45 UTC (07:56:29 hours ago)
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toolchain public-0.17.0
target x86_64-linux-gnu
tgt config linux_debian_12-gcc_13.1
timestamp 2025-07-10 21:36:13 UTC (08:05:01 hours ago)
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toolchain public-0.17.0
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tgt config linux_debian_12-clang_17_libc++
timestamp 2025-07-10 13:40:11 UTC (16:01:03 hours ago)
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toolchain public-0.17.0
target aarch64-linux-gnu
tgt config linux_debian_12-clang_17
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toolchain public-0.17.0
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tgt config linux_debian_12-gcc_13
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toolchain public-0.17.0
target aarch64-linux-gnu
tgt config linux_debian_12-gcc_14-static_O3
timestamp 2025-07-09 23:34:38 UTC (01 06:06:36 days ago)
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toolchain public-0.17.0
target aarch64-linux-gnu
tgt config linux_debian_12-gcc_14-ndebug_O3
timestamp 2025-07-09 23:23:34 UTC (01 06:17:40 days ago)
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toolchain public-0.17.0
target aarch64-linux-gnu
tgt config linux_debian_12-gcc_14
timestamp 2025-07-09 23:18:32 UTC (01 06:22:41 days ago)
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toolchain public-0.17.0
target aarch64-linux-gnu
tgt config linux_debian_12-gcc_14-O3
timestamp 2025-07-09 23:17:06 UTC (01 06:24:07 days ago)
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toolchain public-0.17.0
target aarch64-linux-gnu
tgt config linux_debian_12-clang_18_libc++-O3
timestamp 2025-07-09 02:07:14 UTC (02 03:33:59 days ago)
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toolchain public-0.17.0
target aarch64-linux-gnu
tgt config linux_debian_12-clang_18_libc++-static_O3
timestamp 2025-07-09 02:05:57 UTC (02 03:35:16 days ago)
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toolchain public-0.17.0
target aarch64-linux-gnu
tgt config linux_debian_12-clang_18_libc++
timestamp 2025-07-09 02:05:49 UTC (02 03:35:24 days ago)
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toolchain public-0.17.0
target aarch64-linux-gnu
tgt config linux_debian_12-clang_18-O3
timestamp 2025-07-09 02:04:51 UTC (02 03:36:22 days ago)
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toolchain public-0.17.0
target aarch64-linux-gnu
tgt config linux_debian_12-clang_18-static_O3
timestamp 2025-07-09 02:04:35 UTC (02 03:36:39 days ago)
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toolchain public-0.17.0
target aarch64-linux-gnu
tgt config linux_debian_12-clang_18
timestamp 2025-07-09 01:56:29 UTC (02 03:44:45 days ago)
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toolchain public-0.17.0
target x86_64-linux-gnu
tgt config linux_debian_12-gcc_14-O3
timestamp 2025-07-08 07:13:38 UTC (02 22:27:35 days ago)
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toolchain public-0.17.0
target x86_64-linux-gnu
tgt config linux_debian_12-gcc_14-static_O3
timestamp 2025-07-08 07:13:15 UTC (02 22:27:58 days ago)
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toolchain public-0.17.0
target x86_64-linux-gnu
tgt config linux_debian_12-gcc_14
timestamp 2025-07-08 07:12:08 UTC (02 22:29:06 days ago)
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toolchain public-0.17.0
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tgt config linux_debian_12-gcc_14-ndebug_O3
timestamp 2025-07-08 07:11:12 UTC (02 22:30:02 days ago)
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toolchain public-0.17.0
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timestamp 2025-07-08 07:06:26 UTC (02 22:34:47 days ago)
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toolchain public-0.17.0
target x86_64-w64-mingw32
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timestamp 2025-07-08 07:05:09 UTC (02 22:36:05 days ago)
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toolchain public-0.17.0
target x86_64-w64-mingw32
tgt config windows_10-gcc_13.2_mingw_w64
timestamp 2025-07-08 07:01:17 UTC (02 22:39:57 days ago)
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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 2025-07-08 06:44:49 UTC (02 22:56:24 days ago)
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toolchain public-0.17.0
target x86_64-microsoft-win32-msvc14.3
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timestamp 2025-07-08 06:40:25 UTC (02 23:00:49 days ago)
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toolchain public-0.17.0
target x86_64-microsoft-win32-msvc14.3
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timestamp 2025-07-08 06:38:57 UTC (02 23:02:16 days ago)
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toolchain public-0.17.0
target x86_64-linux-gnu
tgt config linux_debian_12-gcc_12-bindist
timestamp 2025-07-08 06:34:41 UTC (02 23:06:33 days ago)
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toolchain public-0.17.0
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tgt config linux_ubuntu_24.04-gcc_13-bindist
timestamp 2025-07-08 06:20:50 UTC (02 23:20:24 days ago)
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toolchain public-0.17.0
target x86_64-microsoft-win32-msvc14.3
tgt config windows_10-msvc_17.10-O2
timestamp 2025-07-08 06:20:38 UTC (02 23:20:35 days ago)
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toolchain public-0.17.0
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tgt config windows_10-msvc_17.10
timestamp 2025-07-08 06:19:55 UTC (02 23:21:19 days ago)
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toolchain public-0.17.0
target x86_64-microsoft-win32-msvc14.3
tgt config windows_10-msvc_17.10-static_O2
timestamp 2025-07-08 06:18:32 UTC (02 23:22:42 days ago)
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toolchain public-0.17.0
target x86_64-linux-gnu
tgt config linux_fedora_40-gcc_14-bindist
timestamp 2025-07-08 06:13:06 UTC (02 23:28:08 days ago)
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toolchain public-0.17.0
target x86_64-microsoft-win32-msvc14.3
tgt config windows_10-msvc_17.8-static_O2
timestamp 2025-07-08 06:12:55 UTC (02 23:28:18 days ago)
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toolchain public-0.17.0
target x86_64-microsoft-win32-msvc14.3
tgt config windows_10-msvc_17.8-O2
timestamp 2025-07-08 06:10:59 UTC (02 23:30:15 days ago)
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toolchain public-0.17.0
target x86_64-microsoft-win32-msvc14.3
tgt config windows_10-msvc_17.8
timestamp 2025-07-08 06:07:30 UTC (02 23:33:44 days ago)
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toolchain public-0.17.0
target x86_64-microsoft-win32-msvc14.3
tgt config windows_10-clang_17_msvc_msvc_17.10
timestamp 2025-07-08 05:57:07 UTC (02 23:44:06 days ago)
result success | log | rebuild
toolchain public-0.17.0
target x86_64-apple-darwin22.5.0
tgt config macos_13-clang_15.0
timestamp 2025-06-21 07:47:34 UTC (19 21:53:40 days ago)
result success | 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
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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++
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toolchain public-0.17.0
target x86_64-linux-gnu
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result unbuilt
toolchain public-0.17.0
target x86_64-linux-gnu
tgt config linux_debian_12-clang_18_libc++-static_O3
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toolchain public-0.17.0
target x86_64-linux-gnu
tgt config linux_fedora_39-gcc_13-bindist
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toolchain public-0.17.0
target x86_64-apple-darwin23.5.0
tgt config macos_14-clang_15.0
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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
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)