xref: /aosp_15_r20/external/cronet/third_party/libc++/src/docs/Status/Cxx17.rst (revision 6777b5387eb2ff775bb5750e3f5d96f37fb7352b)
1.. _cxx17-status:
2
3================================
4libc++ C++17 Status
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6
7.. include:: ../Helpers/Styles.rst
8
9.. contents::
10   :local:
11
12
13Overview
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15
16In November 2014, the C++ standard committee created a draft for the next version of the C++ standard, initially known as "C++1z".
17In February 2017, the C++ standard committee approved this draft, and sent it to ISO for approval as C++17.
18
19This page shows the status of libc++; the status of clang's support of the language features is `here <https://clang.llvm.org/cxx_status.html#cxx17>`__.
20
21.. attention:: Features in unreleased drafts of the standard are subject to change.
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23The groups that have contributed papers:
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25-  CWG - Core Language Working group
26-  LWG - Library working group
27-  SG1 - Study group #1 (Concurrency working group)
28
29.. note:: "Nothing to do" means that no library changes were needed to implement this change.
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31.. _paper-status-cxx17:
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33Paper Status
34====================================
35
36.. csv-table::
37   :file: Cxx17Papers.csv
38   :header-rows: 1
39   :widths: auto
40
41.. note::
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43   .. [#note-P0067] P0067: ``std::(to|from)_chars`` for integrals has been available since version 7.0. ``std::to_chars`` for ``float`` and ``double`` since version 14.0 ``std::to_chars`` for ``long double`` uses the implementation for ``double``.
44   .. [#note-P0607] P0607: The parts of P0607 that are not done are the ``<regex>`` bits.
45   .. [#note-P0154] P0154: This is currently not implemented for clang because clang does not implement the required macros.
46   .. [#note-P0452] P0452: The changes to ``std::transform_inclusive_scan`` and ``std::transform_exclusive_scan`` have not yet been implemented.
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48.. _issues-status-cxx17:
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50Library Working Group Issues Status
51====================================
52
53.. csv-table::
54   :file: Cxx17Issues.csv
55   :header-rows: 1
56   :widths: auto
57