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 E96793948A75; Mon,  9 May 2022 19:57:24 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org E96793948A75
From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/103539] [C++23] P2324 - Labels at the end of compound
 statements
Date: Mon, 09 May 2022 19:57:24 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: c++
X-Bugzilla-Version: 12.0
X-Bugzilla-Keywords: rejects-valid
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: mpolacek at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-103539-4-E5ImfAGYZZ@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-103539-4@http.gcc.gnu.org/bugzilla/>
References: <bug-103539-4@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
X-BeenThere: gcc-bugs@gcc.gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gcc-bugs mailing list <gcc-bugs.gcc.gnu.org>
List-Unsubscribe: <https://gcc.gnu.org/mailman/options/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=unsubscribe>
List-Archive: <https://gcc.gnu.org/pipermail/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-request@gcc.gnu.org?subject=help>
List-Subscribe: <https://gcc.gnu.org/mailman/listinfo/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Mon, 09 May 2022 19:57:25 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103539

--- Comment #1 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The trunk branch has been updated by Marek Polacek <mpolacek@gcc.gnu.org>:

https://gcc.gnu.org/g:4b2a6628644b2ce15d877c1e85d14e314965a296

commit r13-217-g4b2a6628644b2ce15d877c1e85d14e314965a296
Author: Marek Polacek <polacek@redhat.com>
Date:   Sun May 8 17:36:34 2022 -0400

    c++: Implement P2324R2, labels at the end of compound-stmts [PR103539]

    This patch implements C++23 <https://wg21.link/p2324r2>, which allows
    labels at the end of a compound statement.   Its C FE counterpart was
    already implemented in r11-4813.

    In cp_parser_statement I rely on in_compound to determine whether we're
    in a compound-statement, so that the patch doesn't accidentally allow

      void fn(int c) {
        if (c)
      label:
      }

    Strangely, in_compound was reset after seeing a label (this is tested in
    c-c++-common/gomp/pr63326.c), so I've made a modifiable copy specific
    for OpenMP #pragma purposes.

            PR c++/103539

    gcc/cp/ChangeLog:

            * parser.cc (cp_parser_statement): Constify the in_compound
parameter.
            Create a modifiable copy.  Allow labels at the end of compound
            statements.

    gcc/testsuite/ChangeLog:

            * g++.dg/cpp23/label1.C: New test.
            * g++.dg/cpp23/label2.C: New test.=