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.. _cxx17-status:
================================
libc++ C++17 Status
================================
.. include:: ../Helpers/Styles.rst
.. contents::
:local:
Overview
================================
In November 2014, the C++ standard committee created a draft for the next version of the C++ standard, initially known as "C++1z".
In February 2017, the C++ standard committee approved this draft, and sent it to ISO for approval as C++17.
This 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>`__.
.. attention:: Features in unreleased drafts of the standard are subject to change.
The groups that have contributed papers:
- CWG - Core Language Working group
- LWG - Library working group
- SG1 - Study group #1 (Concurrency working group)
.. note:: "Nothing to do" means that no library changes were needed to implement this change.
.. _paper-status-cxx17:
Paper Status
====================================
.. csv-table::
:file: Cxx17Papers.csv
:header-rows: 1
:widths: auto
.. note::
.. [#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``.
.. [#note-P0607] P0607: The parts of P0607 that are not done are the ``<regex>`` bits.
.. [#note-P0154] P0154: This is currently not implemented for clang because clang does not implement the required macros.
.. [#note-P0452] P0452: The changes to ``std::transform_inclusive_scan`` and ``std::transform_exclusive_scan`` have not yet been implemented.
.. _issues-status-cxx17:
Library Working Group Issues Status
====================================
.. csv-table::
:file: Cxx17Issues.csv
:header-rows: 1
:widths: auto
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