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 B3BF1385842B; Fri, 29 Apr 2022 19:08:39 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org B3BF1385842B
From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/67048] [9/10/11/12/13 Regression] GCC rejects well-formed
 program using empty anonymous enum specifier in a variable declaration
Date: Fri, 29 Apr 2022 19:08:39 +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: 11.1.0
X-Bugzilla-Keywords: diagnostic, 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: P2
X-Bugzilla-Assigned-To: mpolacek at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 9.5
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-67048-4-pyIHa7SMGV@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-67048-4@http.gcc.gnu.org/bugzilla/>
References: <bug-67048-4@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: Fri, 29 Apr 2022 19:08:39 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D67048

--- Comment #4 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:fd0d3e9121c5aa65150d242676be6bbdc8d4a92a

commit r13-51-gfd0d3e9121c5aa65150d242676be6bbdc8d4a92a
Author: Marek Polacek <polacek@redhat.com>
Date:   Thu Apr 28 16:50:06 2022 -0400

    c++: pedwarn for empty unnamed enum in decl [PR67048]

    [dcl.dcl]/5 says that

      enum { };

    is ill-formed, and since r197742 we issue a pedwarn.  However, the
    pedwarn also fires for

       enum { } x;

    which is well-formed.  So only warn when {} is followed by a ;.  This
    should be correct since you can't have "enum {}, <whatever>" -- that
    produces "expected unqualified-id before ',' token".

            PR c++/67048

    gcc/cp/ChangeLog:

            * parser.cc (cp_parser_enum_specifier): Warn about empty unnamed
enum
            only when it's followed by a semicolon.

    gcc/testsuite/ChangeLog:

            * g++.dg/cpp0x/enum42.C: New test.=