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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Builds

toolchain public-0.17.0
target x86_64-linux-gnu
tgt config linux_debian_12-gcc_14-O3
timestamp 2025-07-11 07:14:12 UTC (21:24 minutes ago)
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tgt config linux_debian_12-gcc_14-static_O3
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tgt config windows_10-gcc_13.2_mingw_w64-static_O2
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toolchain public-0.17.0
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toolchain public-0.17.0
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toolchain public-0.17.0
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toolchain public-0.17.0
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toolchain public-0.17.0
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tgt config linux_fedora_40-gcc_14-bindist
timestamp 2025-07-11 06:14:02 UTC (01:21:33 hours ago)
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toolchain public-0.17.0
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toolchain public-0.17.0
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toolchain public-0.17.0
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toolchain public-0.17.0
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toolchain public-0.17.0
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timestamp 2025-07-10 21:55:16 UTC (09:40:19 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 (09:50:50 hours ago)
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toolchain public-0.17.0
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tgt config linux_debian_12-gcc_13.1
timestamp 2025-07-10 21:36:13 UTC (09:59:23 hours ago)
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toolchain public-0.17.0
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tgt config linux_debian_12-gcc_14-static_O3
timestamp 2025-07-09 23:34:38 UTC (01 08:00:58 days ago)
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toolchain public-0.17.0
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timestamp 2025-07-09 23:23:34 UTC (01 08:12:02 days ago)
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toolchain public-0.17.0
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tgt config linux_debian_12-gcc_14-O3
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toolchain public-0.17.0
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tgt config linux_debian_12-clang_18_libc++-O3
timestamp 2025-07-09 02:07:14 UTC (02 05:28:21 days ago)
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toolchain public-0.17.0
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tgt config linux_debian_12-clang_18_libc++-static_O3
timestamp 2025-07-09 02:05:57 UTC (02 05:29:38 days ago)
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toolchain public-0.17.0
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tgt config linux_debian_12-clang_18_libc++
timestamp 2025-07-09 02:05:49 UTC (02 05:29:46 days ago)
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toolchain public-0.17.0
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tgt config linux_debian_12-clang_18-O3
timestamp 2025-07-09 02:04:51 UTC (02 05:30:44 days ago)
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toolchain public-0.17.0
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tgt config linux_debian_12-clang_18-static_O3
timestamp 2025-07-09 02:04:35 UTC (02 05:31:00 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 05:39:07 days ago)
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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 23:48:02 days ago)
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target x86_64-linux-gnu
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toolchain public-0.17.0
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toolchain public-0.17.0
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result excluded (https://github)
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