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 B24D2385F02C; Wed, 14 Jul 2021 09:42:10 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org B24D2385F02C
From: "ismail at i10z dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/101446] -Wpedantic causes an error with zero size array
Date: Wed, 14 Jul 2021 09:42:10 +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: 11.1.1
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: ismail at i10z dot com
X-Bugzilla-Status: RESOLVED
X-Bugzilla-Resolution: INVALID
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-101446-4-NQt9pj2oEr@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-101446-4@http.gcc.gnu.org/bugzilla/>
References: <bug-101446-4@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: Wed, 14 Jul 2021 09:42:10 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101446

--- Comment #3 from =C4=B0smail D=C3=B6nmez <ismail at i10z dot com> ---
(In reply to Richard Biener from comment #2)
> -Wpedantic is the same as -pedantic and that affects correctness of progr=
ams.
>=20
> @item -Wpedantic
> @itemx -pedantic
> @opindex pedantic
> @opindex Wpedantic
> @opindex Wno-pedantic
> Issue all the warnings demanded by strict ISO C and ISO C++;
> reject all programs that use forbidden extensions, and some other
> programs that do not follow ISO C and ISO C++.  For ISO C, follows the
> version of the ISO C standard specified by any @option{-std} option used.
>=20
> Valid ISO C and ISO C++ programs should compile properly with or without
> this option (though a rare few require @option{-ansi} or a
> @option{-std} option specifying the required version of ISO C)@.  However,
> without this option, certain GNU extensions and traditional C and C++
> features are supported as well.  With this option, they are rejected.

Well, not quite so. I enabled -Wpedantic with glibc and have hundreds of
warnings and only the zero-size array one errors out. There is clearly an
inconsistency here.=