tl-optional/1.1.0+1

C++11/14/17 std::optional with functional-style extensions and reference support

Single header implementation of std::optional with functional-style extensions and support for references.

Clang + GCC: MSVC:

std::optional is the preferred way to represent an object which may or may not have a value. Unfortunately, chaining together many computations which may or may not produce a value can be verbose, as empty-checking code will be mixed in with the actual programming logic. This implementation provides a number of utilities to make coding with optional cleaner.

For example, instead of writing this code:

... More

version	1.1.0+1
license	CC0-1.0 UniversalCreative Commons Zero v1.0 Universal
repository	https://pkg.cppget.org/1/stable
download	tl-optional-1.1.0+1.tar.gz
sha256	d272e8b790ac502baee6f6901fb510cd779d144bfdb44de25ffc27ae6e7f35c8

project	tl
doc-url	tl.tartanllama.xyz/en/latest/
package-url	github.com/build2-packaging/build2-tl
package-email	wmbat-dev@protonmail.com

Requires (1)

	c++ >= 11

Tests

	tl-optional-tests == 1.1.0

Reviews

fail	0
pass	1

Builds

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target	x86_64-microsoft-win32-msvc14.3
tgt config	windows_10-clang_17_msvc_msvc_17.10
timestamp	2025-09-24 13:00:33 UTC (19:16:29 hours ago)
result	warning (test) \| warning (test-installed) \| log \| rebuild

toolchain	public-0.17.0
target	x86_64-microsoft-win32-msvc14.3
tgt config	windows_10-msvc_17.10-O2
timestamp	2025-09-24 12:59:47 UTC (19:17:15 hours ago)
result	warning (test) \| warning (test-installed) \| log \| rebuild

toolchain	public-0.17.0
target	x86_64-microsoft-win32-msvc14.3
tgt config	windows_10-msvc_17.10-static_O2
timestamp	2025-09-24 12:59:38 UTC (19:17:24 hours ago)
result	warning (test) \| warning (test-installed) \| log \| rebuild

toolchain	public-0.17.0
target	x86_64-microsoft-win32-msvc14.3
tgt config	windows_10-msvc_17.8-static_O2
timestamp	2025-09-24 12:59:00 UTC (19:18:03 hours ago)
result	warning (test) \| warning (test-installed) \| log \| rebuild

toolchain	public-0.17.0
target	x86_64-microsoft-win32-msvc14.3
tgt config	windows_10-msvc_17.10
timestamp	2025-09-24 12:58:54 UTC (19:18:08 hours ago)
result	warning (test) \| warning (test-installed) \| log \| rebuild

toolchain	public-0.17.0
target	x86_64-microsoft-win32-msvc14.3
tgt config	windows_10-msvc_17.8-O2
timestamp	2025-09-24 12:58:03 UTC (19:18:59 hours ago)
result	warning (test) \| warning (test-installed) \| log \| rebuild

toolchain	public-0.17.0
target	x86_64-microsoft-win32-msvc14.3
tgt config	windows_10-msvc_17.8
timestamp	2025-09-24 12:56:53 UTC (19:20:09 hours ago)
result	warning (test) \| warning (test-installed) \| log \| rebuild

toolchain	public-0.17.0
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timestamp	2025-09-24 12:37:54 UTC (19:39:08 hours ago)
result	warning (test) \| warning (test-installed) \| log \| rebuild

toolchain	public-0.17.0
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timestamp	2025-09-24 12:35:56 UTC (19:41:06 hours ago)
result	warning (test) \| warning (test-installed) \| log \| rebuild

toolchain	public-0.17.0
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timestamp	2025-09-24 12:35:46 UTC (19:41:16 hours ago)
result	warning (test) \| warning (test-installed) \| log \| rebuild

toolchain	public-0.17.0
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timestamp	2025-09-24 12:33:49 UTC (19:43:13 hours ago)
result	warning (test) \| warning (test-installed) \| log \| rebuild

toolchain	public-0.17.0
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timestamp	2025-09-24 12:31:48 UTC (19:45:14 hours ago)
result	warning (test) \| warning (test-installed) \| log \| rebuild

toolchain	public-0.17.0
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timestamp	2025-09-24 12:30:12 UTC (19:46:50 hours ago)
result	warning (test) \| warning (test-installed) \| log \| rebuild

toolchain	public-0.17.0
target	x86_64-linux-gnu
tgt config	linux_fedora_40-gcc_14-bindist
timestamp	2025-09-24 06:38:22 UTC (01 01:38:40 days ago)
result	success \| log \| rebuild

toolchain	public-0.17.0
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timestamp	2025-09-24 02:32:29 UTC (01 05:44:33 days ago)
result	success \| log \| rebuild

toolchain	public-0.17.0
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timestamp	2025-09-24 02:06:54 UTC (01 06:10:08 days ago)
result	success \| log \| rebuild

toolchain	public-0.17.0
target	aarch64-linux-gnu
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timestamp	2025-09-24 02:05:47 UTC (01 06:11:15 days ago)
result	success \| log \| rebuild

toolchain	public-0.17.0
target	aarch64-linux-gnu
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timestamp	2025-09-24 01:55:49 UTC (01 06:21:14 days ago)
result	success \| log \| rebuild

toolchain	public-0.17.0
target	aarch64-linux-gnu
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timestamp	2025-09-23 16:45:39 UTC (01 15:31:24 days ago)
result	success \| log \| rebuild

toolchain	public-0.17.0
target	aarch64-linux-gnu
tgt config	linux_debian_12-clang_17_libc++
timestamp	2025-09-23 11:48:16 UTC (01 20:28:46 days ago)
result	warning (test) \| warning (test-installed) \| log \| rebuild

toolchain	public-0.17.0
target	aarch64-linux-gnu
tgt config	linux_debian_12-clang_17
timestamp	2025-09-23 11:47:49 UTC (01 20:29:14 days ago)
result	warning (test) \| 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	2025-09-23 05:40:16 UTC (02 02:36:46 days 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	2025-09-23 05:37:38 UTC (02 02:39:25 days ago)
result	success \| log \| rebuild

toolchain	public-0.17.0
target	x86_64-linux-gnu
tgt config	linux_debian_12-gcc_14-O3
timestamp	2025-09-23 05:31:51 UTC (02 02:45:11 days ago)
result	success \| log \| rebuild

toolchain	public-0.17.0
target	x86_64-linux-gnu
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timestamp	2025-09-23 02:49:10 UTC (02 05:27:52 days ago)
result	success \| log \| rebuild

toolchain	public-0.17.0
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timestamp	2025-09-23 00:58:42 UTC (02 07:18:21 days ago)
result	success \| log \| rebuild

toolchain	public-0.17.0
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tgt config	windows_10-gcc_13.2_mingw_w64-static_O2
timestamp	2025-09-23 00:57:28 UTC (02 07:19:34 days ago)
result	success \| log \| rebuild

toolchain	public-0.17.0
target	x86_64-linux-gnu
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timestamp	2025-09-23 00:57:22 UTC (02 07:19:40 days ago)
result	success \| log \| rebuild

toolchain	public-0.17.0
target	x86_64-linux-gnu
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timestamp	2025-09-23 00:53:11 UTC (02 07:23:51 days ago)
result	success \| log \| rebuild

toolchain	public-0.17.0
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timestamp	2025-09-23 00:49:58 UTC (02 07:27:04 days ago)
result	success \| log \| rebuild

toolchain	public-0.17.0
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timestamp	2025-09-23 00:01:23 UTC (02 08:15:40 days ago)
result	success \| log \| rebuild

toolchain	public-0.17.0
target	aarch64-linux-gnu
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timestamp	2025-09-22 15:51:56 UTC (02 16:25:07 days ago)
result	warning (test) \| warning (test-installed) \| log \| rebuild

toolchain	public-0.17.0
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timestamp	2025-09-22 15:46:35 UTC (02 16:30:28 days ago)
result	warning (test) \| warning (test-installed) \| log \| rebuild

toolchain	public-0.17.0
target	aarch64-linux-gnu
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timestamp	2025-09-22 15:45:17 UTC (02 16:31:46 days ago)
result	warning (test) \| warning (test-installed) \| log \| rebuild

toolchain	public-0.17.0
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timestamp	2025-09-22 15:44:26 UTC (02 16:32:36 days ago)
result	warning (test) \| warning (test-installed) \| log \| rebuild

toolchain	public-0.17.0
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timestamp	2025-09-22 15:38:52 UTC (02 16:38:10 days ago)
result	warning (test) \| warning (test-installed) \| log \| rebuild

toolchain	public-0.17.0
target	aarch64-linux-gnu
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timestamp	2025-09-22 15:37:35 UTC (02 16:39:27 days ago)
result	warning (test) \| warning (test-installed) \| log \| rebuild

toolchain	public-0.17.0
target	x86_64-microsoft-win32-msvc14.3
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timestamp	2025-09-22 15:28:59 UTC (02 16:48:03 days ago)
result	warning (test) \| warning (test-installed) \| log \| rebuild

toolchain	public-0.17.0
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tgt config	windows_10-clang_18_llvm_msvc_17.10-O2
timestamp	2025-09-22 15:21:39 UTC (02 16:55:23 days ago)
result	warning (test) \| warning (test-installed) \| log \| rebuild

toolchain	public-0.17.0
target	x86_64-microsoft-win32-msvc14.3
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timestamp	2025-09-22 15:18:42 UTC (02 16:58:20 days ago)
result	warning (test) \| warning (test-installed) \| log \| rebuild

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