From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id AA02F3835827; Thu, 12 Aug 2021 20:53:47 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org AA02F3835827 From: "msebor at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/101451] Incorrect -Wstringop-truncation warning Date: Thu, 12 Aug 2021 20:53:47 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 11.1.1 X-Bugzilla-Keywords: diagnostic X-Bugzilla-Severity: normal X-Bugzilla-Who: msebor at gcc dot gnu.org 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: resolution cc bug_status blocked Message-ID: In-Reply-To: References: 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 12 Aug 2021 20:53:47 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101451 Martin Sebor changed: What |Removed |Added ---------------------------------------------------------------------------- Resolution|--- |INVALID CC| |msebor at gcc dot gnu.org Status|WAITING |RESOLVED Blocks| |88781 --- Comment #4 from Martin Sebor --- The warning is by design. For strncat() which always appends a nul it's documented to trigger if the call truncates the source string. Referenced Bugs: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D88781 [Bug 88781] [meta-bug] bogus/missing -Wstringop-truncation warnings=