libboost-optional/1.83.0

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	1.83.0
license	BSL-1.0Boost Software License 1.0
repository	https://pkg.cppget.org/1/stable
download	libboost-optional-1.83.0.tar.gz
sha256	bcb3bf3870d4fe61f4008e65a72edebac40ddbb2faf67a792d18457d457b1c7e

project	boost
url	github.com/boostorg/optional
doc-url	www.boost.org/doc/libs/1_83_0/libs/optional
package-url	github.com/build2-packaging/boost
email	boost-users@lists.boost.orgMailing list
package-email	packaging@build2.orgMailing list
topics	C++Boost

Depends (10)

	libboost-assert == 1.83.0
	libboost-config == 1.83.0
	libboost-core == 1.83.0
	libboost-detail == 1.83.0
	libboost-move == 1.83.0
	libboost-predef == 1.83.0
	libboost-static-assert == 1.83.0
	libboost-throw-exception == 1.83.0
	libboost-type-traits == 1.83.0
	libboost-utility == 1.83.0

Reviews

fail	0
pass	1

Builds

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target	x86_64-microsoft-win32-msvc14.5
tgt config	windows_10-msvc_18-static_O2
timestamp	2026-05-11 20:35:23 UTC (01 05:06:20 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	2026-05-11 20:35:12 UTC (01 05:06:30 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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timestamp	2026-05-11 20:34:16 UTC (01 05:07:27 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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tgt config	windows_10-clang_21_msvc_18-static_O2
timestamp	2026-05-11 20:24:23 UTC (01 05:17:19 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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timestamp	2026-05-11 20:23:38 UTC (01 05:18:04 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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timestamp	2026-05-11 20:23:34 UTC (01 05:18:08 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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timestamp	2026-05-11 12:15:44 UTC (01 13:25:58 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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timestamp	2026-05-08 23:15:03 UTC (04 02:26:39 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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timestamp	2026-05-08 23:14:32 UTC (04 02:27:11 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	2026-05-08 23:13:48 UTC (04 02:27:55 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
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timestamp	2026-05-08 18:36:03 UTC (04 07:05:39 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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timestamp	2026-05-05 11:39:07 UTC (07 14:02:35 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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timestamp	2026-05-01 18:54:41 UTC (11 06:47:01 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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timestamp	2026-05-01 18:53:04 UTC (11 06:48:38 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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timestamp	2026-05-01 18:51:17 UTC (11 06:50:25 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
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timestamp	2026-04-30 22:19:15 UTC (12 03:22:27 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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timestamp	2026-04-30 22:19:04 UTC (12 03:22:38 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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timestamp	2026-04-30 22:19:04 UTC (12 03:22:38 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
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timestamp	2026-04-30 22:18:59 UTC (12 03:22:43 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	2026-04-30 22:18:39 UTC (12 03:23:03 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
tgt config	linux_debian_13-clang_22_libc++
timestamp	2026-04-30 22:18:38 UTC (12 03:23:04 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
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result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
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timestamp	2026-04-30 22:18:15 UTC (12 03:23:27 days ago)
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toolchain	public-0.18.1
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timestamp	2026-04-30 22:18:07 UTC (12 03:23:35 days ago)
result	success \| log \| rebuild

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result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
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timestamp	2026-04-30 22:17:56 UTC (12 03:23:46 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	x86_64-linux-gnu
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timestamp	2026-04-30 22:17:47 UTC (12 03:23:55 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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result	success \| log \| rebuild

toolchain	public-0.18.1
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result	success \| log \| rebuild

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result	success \| log \| rebuild

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result	success \| log \| rebuild

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result	success \| log \| rebuild

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timestamp	2026-04-30 13:56:14 UTC (12 11:45:28 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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timestamp	2026-04-30 12:31:04 UTC (12 13:10:38 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
target	aarch64-linux-gnu
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timestamp	2026-04-30 12:30:55 UTC (12 13:10:47 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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timestamp	2026-04-30 12:30:31 UTC (12 13:11:11 days ago)
result	success \| log \| rebuild

toolchain	public-0.18.1
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timestamp	2026-04-30 12:30:22 UTC (12 13:11:20 days ago)
result	success \| log \| rebuild

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timestamp	2026-04-29 12:35:15 UTC (13 13:06:27 days ago)
result	success \| log \| rebuild

target	x86_64-apple-darwin23.5.0
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result	excluded (https://github)

target	x86_64-apple-darwin23.5.0
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target	x86_64-apple-darwin23.5.0
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