From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 21279 invoked by alias); 15 Mar 2012 00:58:46 -0000 Received: (qmail 21269 invoked by uid 22791); 15 Mar 2012 00:58:46 -0000 X-SWARE-Spam-Status: No, hits=-2.8 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 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, 15 Mar 2012 00:58:33 +0000 From: "redi at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug libstdc++/52591] [C++0x] [4.7 Regression] moving std::vector relies on movable elements Date: Thu, 15 Mar 2012 01:02:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: libstdc++ X-Bugzilla-Keywords: X-Bugzilla-Severity: major X-Bugzilla-Who: redi at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: redi at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.7.1 X-Bugzilla-Changed-Fields: 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: 2012-03/txt/msg01305.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52591 --- Comment #7 from Jonathan Wakely 2012-03-15 00:58:15 UTC --- std::vector did not conform to the C++11 allocator-aware container requirements in 4.6, now it does, so you can't use a non-MoveAssignable type as the element type. It would be possible to dispatch to a different function for the cases when propagate_on_container_move_assignment is true or the allocators are known to always compare equal (which I suspect libc++ does) and I'll consider doing that as a conforming extension, but I think the testcase is invalid.