From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-0.3 required=5.0 tests=BAYES_00, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Thread: 103376,4608b6f4718e680f X-Google-NewGroupId: yes X-Google-Attributes: gida07f3367d7,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Received: by 10.68.241.7 with SMTP id we7mr4990433pbc.4.1337152505026; Wed, 16 May 2012 00:15:05 -0700 (PDT) Path: pr3ni4357pbb.0!nntp.google.com!news1.google.com!goblin1!goblin2!goblin.stu.neva.ru!aioe.org!.POSTED!not-for-mail From: "Dmitry A. Kazakov" Newsgroups: comp.lang.ada Subject: Re: Problem in "X (1).Re := X (1).Re + 1" Date: Wed, 16 May 2012 09:14:13 +0200 Organization: cbb software GmbH Message-ID: References: <13177506.38.1336222539273.JavaMail.geo-discussion-forums@pbtg6> <21452734.731.1336405064187.JavaMail.geo-discussion-forums@ynbv35> <5749033.1275.1336416838264.JavaMail.geo-discussion-forums@pbchd7> <10294366.7.1336426132700.JavaMail.geo-discussion-forums@yngg23> <5209872.2691.1336497260879.JavaMail.geo-discussion-forums@ynlq12> <30097103.0.1336555778034.JavaMail.geo-discussion-forums@pbcow8> Reply-To: mailbox@dmitry-kazakov.de NNTP-Posting-Host: FbOMkhMtVLVmu7IwBnt1tw.user.speranza.aioe.org Mime-Version: 1.0 X-Complaints-To: abuse@aioe.org User-Agent: 40tude_Dialog/2.0.15.1 X-Notice: Filtered by postfilter v. 0.8.2 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Date: 2012-05-16T09:14:13+02:00 List-Id: On Tue, 15 May 2012 23:12:56 +0100, Simon Wright wrote: > I suppose that an implementation that used copy-on-write for the > standard containers would have to warn users that any use of Reference > or Constant_Reference would be liable to result in Program_Error in > unexpected places. Or support reference promotion (+ task identification), which is nice can of worms... -- Regards, Dmitry A. Kazakov http://www.dmitry-kazakov.de