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: 103376,5ae752c88e0dde5e X-Google-NewGroupId: yes X-Google-Attributes: gida07f3367d7,domainid0,public,usenet X-Google-Language: ENGLISH,UTF8 Path: g2news1.google.com!news1.google.com!npeer01.iad.highwinds-media.com!news.highwinds-media.com!feed-me.highwinds-media.com!nntp.club.cc.cmu.edu!feeder.erje.net!de-l.enfer-du-nord.net!feeder1.enfer-du-nord.net!gegeweb.org!aioe.org!not-for-mail From: =?utf-8?Q?Yannick_Duch=C3=AAne_=28Hibou57?= =?utf-8?Q?=29?= Newsgroups: comp.lang.ada Subject: Re: Using representation clauses in networking software Date: Sun, 15 Aug 2010 17:31:43 +0200 Organization: Ada At Home Message-ID: References: <8739ugqfeb.fsf@mid.deneb.enyo.de> <43fkp7an4c5m$.3db3n6adym42.dlg@40tude.net> <8739ugkka6.fsf@mid.deneb.enyo.de> NNTP-Posting-Host: lii8bauySSx0YHeDgKSgMg.user.speranza.aioe.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; 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/10.61 (Win32) Xref: g2news1.google.com comp.lang.ada:13341 Date: 2010-08-15T17:31:43+02:00 List-Id: Le Sun, 15 Aug 2010 16:44:33 +0200, Florian Weimer a = = =C3=A9crit: > I wonder if there has been any attempt to enhance representation > clauses so that they are useful in this context. What do you mean with =E2=80=9Cenhance=E2=80=9D here ? What enhancement = over a user = defined function/procedure would you expect ? -- = 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.