From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 98544 invoked by alias); 23 Jul 2017 22:46:01 -0000 Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Received: (qmail 98491 invoked by uid 89); 23 Jul 2017 22:45:55 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-0.8 required=5.0 tests=BAYES_00,FREEMAIL_FROM,KAM_COUK,RCVD_IN_DNSWL_NONE,RP_MATCHES_RCVD,SPF_PASS autolearn=no version=3.3.2 spammy=Irfan, adilovic, irfan, Adilovic X-HELO: smtp-out-3.tiscali.co.uk Received: from smtp-out-3.tiscali.co.uk (HELO smtp-out-3.tiscali.co.uk) (62.24.135.131) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Sun, 23 Jul 2017 22:45:53 +0000 Received: from [10.7.7.45] ([88.150.206.166]) by smtp.talktalk.net with SMTP id ZPd5dLkPUcemAZPdBdAx9k; Sun, 23 Jul 2017 23:45:46 +0100 Subject: Re: gcc-7.1.0/c++17/old-abi: empty stringstream invalid memory access To: cygwin@cygwin.com References: Cc: irfanadilovic@gmail.com From: David Stacey Message-ID: <77d46578-8d3e-ac5c-fc14-ba956ff65801@tiscali.co.uk> Date: Mon, 24 Jul 2017 02:09:00 -0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-CMAE-Envelope: MS4wfBQZk8jbFucSkMWH1EnekUmNDWokO1Fi7drkBb+kg0+5yAptjJ0u2CxHyeibXKkheTvRgLI/gpuDGt39GGMKnh5XP6m8QDT0fI7euIMYZTqlRWD525zW SIFLsnYw7d8pwh6vzW5SgSWNsV4ZYgtIt8n0ypnk3BdQDQ0dm6zUHa8Kb3OQMl/T3z1seTgkLHFNjVkZVbr+SgxkOf49/YLwqh4= X-IsSubscribed: yes X-SW-Source: 2017-07/txt/msg00317.txt.bz2 On 23/07/17 12:38, Irfan Adilovic wrote: > I am reproducing here a bug report I filed to gcc's bugzilla against > gcc-7.1.0:https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81522 , in > hopes of finding others who observed the same issue or who may have a > solution. The bug only appears on Cygwin and only in c++17 mode with > the old ABI. Earlier in the month, there were a few issues reported regarding g++ that turned out to be a problem in signal.h. This was fixed in Cygwin 2.8.2. Please could you verify the version of Cygwin that you're using (cygcheck -c cygwin). If you have an older version of Cygwin, please could you update and re-run your testcase. Dave. -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple