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 D5FE1398547F; Wed, 14 Jul 2021 15:00:06 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org D5FE1398547F
From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/101361] Bogus -Wstringop-overread warning with -O3
Date: Wed, 14 Jul 2021 15:00:06 +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: 11.1.0
X-Bugzilla-Keywords: diagnostic
X-Bugzilla-Severity: normal
X-Bugzilla-Who: cvs-commit at gcc dot gnu.org
X-Bugzilla-Status: NEW
X-Bugzilla-Resolution: 
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-101361-4-SXt7Xt5Q93@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-101361-4@http.gcc.gnu.org/bugzilla/>
References: <bug-101361-4@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 15:00:06 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101361

--- Comment #9 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Jonathan Wakely
<redi@gcc.gnu.org>:

https://gcc.gnu.org/g:96205c97294d5db94bd89cd731830058d9c49abd

commit r11-8741-g96205c97294d5db94bd89cd731830058d9c49abd
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Tue Jul 13 12:21:27 2021 +0100

    libstdc++: Simplify basic_string_view::ends_with [PR 101361]

    The use of npos triggers a diagnostic as described in PR c++/101361.
    This change replaces the use of npos with the exact length, which is
    already known. We can further simplify it by inlining the effects of
    compare and substr, avoiding the redundant range checks in the latter.

    Signed-off-by: Jonathan Wakely <jwakely@redhat.com>

    libstdc++-v3/ChangeLog:

            PR c++/101361
            * include/std/string_view (ends_with): Use traits_type::compare
            directly.

    (cherry picked from commit 4d3eaeb4f505b0838c673ee28e7dba8687fc8272)=