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=-1.8 required=5.0 tests=BAYES_00,FREEMAIL_FROM, PLING_QUERY autolearn=no autolearn_force=no version=3.4.4 X-Google-Thread: a07f3367d7,b6d862eabdeb1fc4 X-Google-Attributes: gida07f3367d7,public,usenet X-Google-NewGroupId: yes X-Google-Language: ENGLISH,ASCII Path: g2news2.google.com!news3.google.com!feeder.news-service.com!feeder.visyn.net!visyn.net!aioe.org!not-for-mail From: =?iso-8859-15?Q?Yannick_Duch=EAne_=28Hibou57=29?= Newsgroups: comp.lang.ada Subject: Re: Ada noob here! Is Ada widely used? Date: Sat, 05 Jun 2010 11:05:16 +0200 Organization: Ada At Home Message-ID: References: <82pr06yvqu.fsf@stephe-leake.org> <7sxhe3ad80de$.5yvimcxk9vjb.dlg@40tude.net> NNTP-Posting-Host: anOtUalzMUZHasssFqT+2w.user.speranza.aioe.org Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15; format=flowed; delsp=yes Content-Transfer-Encoding: Quoted-Printable X-Complaints-To: abuse@aioe.org X-Notice: Filtered by postfilter v. 0.8.2 User-Agent: Opera Mail/10.53 (Win32) Xref: g2news2.google.com comp.lang.ada:12271 Date: 2010-06-05T11:05:16+02:00 List-Id: Le Sat, 05 Jun 2010 10:00:07 +0200, Dmitry A. Kazakov = a =E9crit: > Another problem which worries me, is program changes. Let I modify the= > program, the result is *another* program. How can I talk about the > "reliability" of what? Well, they share some code, but certainly we = > cannot > consider source lines random. E.g. Let I modify 0,01% of the source of= = > 90% > "reliable" program. I can tell nothing about whether the result is 90%= > reliable +/- factor * 0.01%. This model just does not work. So this is chaotic (and there is a science which can talk about it too).= -- = There is even better than a pragma Assert: a SPARK --# check. --# check C and WhoKnowWhat and YouKnowWho; --# assert Ada; -- i.e. forget about previous premises which leads to conclusion -- and start with new conclusion as premise.