From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 7257 invoked by alias); 9 Aug 2012 23:35:20 -0000 Received: (qmail 7050 invoked by uid 22791); 9 Aug 2012 23:35:19 -0000 X-SWARE-Spam-Status: No, hits=-4.3 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,KHOP_THREADED X-Spam-Check-By: sourceware.org Received: from localhost (HELO gcc.gnu.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Thu, 09 Aug 2012 23:35:07 +0000 From: "pinskia at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/54180] a bug using strcat function - it depends on variable declare order, but it should not. Date: Thu, 09 Aug 2012 23:35:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c++ X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: pinskia at gcc dot gnu.org X-Bugzilla-Status: RESOLVED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Status Resolution Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2012-08/txt/msg00535.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54180 Andrew Pinski changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |INVALID --- Comment #8 from Andrew Pinski 2012-08-09 23:35:06 UTC --- (In reply to comment #7) > all those variables are defined, otherwise it would not compile. The main is, > that it is normal(both cases) for the "C" language syntax and both declaration > orders should work. With the correct lengths? Writing past the array bounds in both C and C++ is not required a diagnostic, it just invokes undefined behavior.