From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 55DB13857C5E; Sat, 31 Oct 2020 21:16:02 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 55DB13857C5E From: "redi at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug libstdc++/77691] [8/9/10/11 regression] experimental/memory_resource/resource_adaptor.cc FAILs Date: Sat, 31 Oct 2020 21:16:02 +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: 7.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: redi at gcc dot gnu.org X-Bugzilla-Status: ASSIGNED X-Bugzilla-Resolution: X-Bugzilla-Priority: P4 X-Bugzilla-Assigned-To: ro at gcc dot gnu.org X-Bugzilla-Target-Milestone: 8.5 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: 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: Sat, 31 Oct 2020 21:16:02 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D77691 --- Comment #44 from Jonathan Wakely --- It looks like mingw* has the same problem: https://sourceforge.net/p/mingw-w64/bugs/778/ mlloc returns memory aligned to 8 bytes, GCC's stddef.h says 16 is a fundamental alignment. Even worse, mingw's own stddef.h says 8, and which definition of max_align_t you get depends on include order.=