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,FREEMAIL_FROM autolearn=ham autolearn_force=no version=3.4.4 X-Google-Thread: 103376,25e091afe1184988 X-Google-Attributes: gid103376,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news2.google.com!postnews.google.com!h48g2000cwc.googlegroups.com!not-for-mail From: roderick.chapman@googlemail.com Newsgroups: comp.lang.ada Subject: Re: Reference-oriented language and high-integrity software Date: 3 Nov 2006 01:43:18 -0800 Organization: http://groups.google.com Message-ID: <1162546998.925808.52360@h48g2000cwc.googlegroups.com> References: <87mz78zz1w.fsf@ludovic-brenta.org> NNTP-Posting-Host: 217.205.167.137 Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" X-Trace: posting.google.com 1162547005 18766 127.0.0.1 (3 Nov 2006 09:43:25 GMT) X-Complaints-To: groups-abuse@google.com NNTP-Posting-Date: Fri, 3 Nov 2006 09:43:25 +0000 (UTC) In-Reply-To: User-Agent: G2/1.0 X-HTTP-UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.8.1) Gecko/20061010 Firefox/2.0,gzip(gfe),gzip(gfe) X-HTTP-Via: 1.1 bloxx:3128 (squid/2.5.STABLE11) Complaints-To: groups-abuse@google.com Injection-Info: h48g2000cwc.googlegroups.com; posting-host=217.205.167.137; posting-account=EhC47gwAAABJYiJ7JUJjwDyYMTWH1OKq Xref: g2news2.google.com comp.lang.ada:7350 Date: 2006-11-03T01:43:18-08:00 List-Id: The provision of _sound_ (i.e. no false negatives) and _fast_ aliasing analysis a key factor, even in the absence of dynamic memory and garbage collection. The soundness (and efficiency) of the information flow analyser and the VC Generator (which is basically an implementation of Hoare's assignment axiom) depend on this property. - Rod, SPARK Team