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,b78c363353551702 X-Google-NewGroupId: yes X-Google-Attributes: gida07f3367d7,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Received: by 10.68.190.104 with SMTP id gp8mr3289471pbc.4.1340368989748; Fri, 22 Jun 2012 05:43:09 -0700 (PDT) Path: l9ni6864pbj.0!nntp.google.com!news1.google.com!news.glorb.com!feeder.erje.net!news.mixmin.net!aioe.org!.POSTED!not-for-mail From: "Dmitry A. Kazakov" Newsgroups: comp.lang.ada Subject: Re: about the new Ada 2012 pre/post conditions Date: Fri, 22 Jun 2012 14:43:11 +0200 Organization: cbb software GmbH Message-ID: <1v3soeviat3z1.f0iwle9giqwk.dlg@40tude.net> References: <1hgo6aks03zy.by4pq4xbjsgf$.dlg@40tude.net> <1jvy3elqtnd1j.1sjbk32evhp1f$.dlg@40tude.net> <4fe45ce8$0$9508$9b4e6d93@newsspool1.arcor-online.net> 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: 2012-06-22T14:43:11+02:00 List-Id: On Fri, 22 Jun 2012 13:54:16 +0200, Georg Bauhaus wrote: > On 22.06.12 09:23, Dmitry A. Kazakov wrote: >> Neither #1 nor #2 is defendable. > > Maybe dynamic checking is not defendable when the attack is > based on some biased, and, frankly, narrow set of assumptions. Sure, the most effective defence is just not to take any position. You might get exposed otherwise. BTW, narrower the set of assumptions is, wider is the context where the conclusion stays true. I would not be so proud about liberally sweeping assumptions, they may occasionally include flat earth or the Moon composed of cheese... -- Regards, Dmitry A. Kazakov http://www.dmitry-kazakov.de