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=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,23ade4b42d9cb5f0 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2003-01-21 11:29:03 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!logbridge.uoregon.edu!newsfeed.hostname.nl!zen.net.uk!news.cabal.org.uk!news-peer.gradwell.net!not-for-mail Newsgroups: comp.lang.ada From: porton@ex-code.com (Victor Porton) Date: Tue, 21 Jan 2003 18:10:57 +0500 References: <3e2b7777$0$33930$bed64819@news.gradwell.net> Organization: Extreme Code Software (http://ex-code.com) Subject: Re: Eliminating copying in Gnat Mime-Version: 1.0 X-Newsreader: knews 1.0b.1 Content-Type: text/plain; charset=us-ascii X-URL: http://www.ex-code.com/ Message-ID: <3e2d9f7e$0$33931$bed64819@news.gradwell.net> NNTP-Posting-Date: 21 Jan 2003 19:29:02 GMT NNTP-Posting-Host: 195.149.39.13 X-Trace: 1043177342 news.gradwell.net 33931 mail2news/195.149.39.13 X-Complaints-To: news-abuse@gradwell.net Xref: archiver1.google.com comp.lang.ada:33313 Date: 2003-01-21T19:29:02+00:00 List-Id: In article , Georg Bauhaus writes: > Victor Porton wrote: >: But Adjust is called 3 times :-( > > Are compilers allowed to optimize away an Adjust? > Might Adjust not have side effects? Yes, Standard permits throwing Adjust away in certain situations. Not 100% sure about side effects, but I think these are permitted.