From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
	id 44E7C385843A; Fri, 11 Aug 2023 18:58:44 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 44E7C385843A
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1691780324;
	bh=ieI+/RPBKlzq4kyfkFbyBt1FeARwE0iJlUhTsrmJa9Q=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=D0F+S0XxfcAvQkdyd91DZaU5yHNlyS3twMW2rsKURyd2nBhLattrRcSQ1FCVI1LQJ
	 DJEsH0NVvvIA4BgMzoM0yYdzQ3Z9jW8Cy5tgquQ3E2nFKxVdnpLMTMY4Ct7vP7rmT2
	 9gt+WJH7XItn9yiUqLZtMneH5RSTiWrgqYaFQ3X8=
From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/104167] Implement C++20 std::chrono::utc_clock,
 std::chrono::tzdb etc.
Date: Fri, 11 Aug 2023 18:58:42 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: libstdc++
X-Bugzilla-Version: 12.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: cvs-commit at gcc dot gnu.org
X-Bugzilla-Status: ASSIGNED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: redi at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 13.3
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-104167-4-SUzKMRuVm6@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-104167-4@http.gcc.gnu.org/bugzilla/>
References: <bug-104167-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
List-Id: <gcc-bugs.sourceware.org>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D104167

--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jonathan Wakely <redi@gcc.gnu.org>:

https://gcc.gnu.org/g:ce6c4d3b4d336493cab128795467d832cb04c9ee

commit r14-3165-gce6c4d3b4d336493cab128795467d832cb04c9ee
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Fri Jul 21 17:19:08 2023 +0100

    libstdc++: Implement C++20 std::chrono::parse [PR104167]

    This adds the missing C++20 features to <chrono>.

    I've implemented my proposed resolutions to LWG issues 3960, 3961, and
    3962. There are some unimplemented flags such as %OI which I think are
    not implementable in general. It might be possible to use na_llanginfo
    with ALT_DIGITS, but that isn't available on all targets. I intend to
    file another LWG issue about that.

    libstdc++-v3/ChangeLog:

            PR libstdc++/104167
            * include/bits/chrono_io.h (operator|=3D, operator|): Add noexc=
ept
            to _ChronoParts operators.
            (from_stream, parse): Define new functions.
            (__detail::_Parse, __detail::_Parser): New class templates.
            * include/std/chrono (__cpp_lib_chrono): Define to 201907L for
            C++20.
            * include/std/version (__cpp_lib_chrono): Likewise.
            * testsuite/20_util/duration/arithmetic/constexpr_c++17.cc:
            Adjust expected value of feature test macro.
            * testsuite/20_util/duration/io.cc: Test parsing.
            * testsuite/std/time/clock/file/io.cc: Likewise.
            * testsuite/std/time/clock/gps/io.cc: Likewise.
            * testsuite/std/time/clock/system/io.cc: Likewise.
            * testsuite/std/time/clock/tai/io.cc: Likewise.
            * testsuite/std/time/clock/utc/io.cc: Likewise.
            * testsuite/std/time/day/io.cc: Likewise.
            * testsuite/std/time/month/io.cc: Likewise.
            * testsuite/std/time/month_day/io.cc: Likewise.
            * testsuite/std/time/weekday/io.cc: Likewise.
            * testsuite/std/time/year/io.cc: Likewise.
            * testsuite/std/time/year_month/io.cc: Likewise.
            * testsuite/std/time/year_month_day/io.cc: Likewise.
            * testsuite/std/time/syn_c++20.cc: Check value of macro and for
            the existence of parse and from_stream in namespace chrono.
            * testsuite/std/time/clock/local/io.cc: New test.
            * testsuite/std/time/parse.cc: New test.=