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-Thread: 103376,5c89acd494ea9116 X-Google-Attributes: gid103376,public,usenet X-Google-Language: ENGLISH,ASCII Path: g2news2.google.com!news3.google.com!feeder1-2.proxad.net!proxad.net!feeder1-1.proxad.net!oleane.net!oleane!hunter.axlog.fr!nobody From: Jean-Pierre Rosen Newsgroups: comp.lang.ada Subject: Re: Self pointer in limited record Date: Mon, 03 Sep 2007 17:55:33 +0200 Organization: Adalog Message-ID: References: <1183577468.034566.57830@n60g2000hse.googlegroups.com> <1188578849.187422.280620@50g2000hsm.googlegroups.com> <9fy1xoukz1e3$.h574sqmiauri$.dlg@40tude.net> <46d968ee$0$30368$9b4e6d93@newsspool4.arcor-online.net> <137iu0lr82dtb$.wqy3zjz2vr9q.dlg@40tude.net> <46d972e8$0$30384$9b4e6d93@newsspool4.arcor-online.net> <1alyfwaig93sk$.99oy269uon$.dlg@40tude.net> <46d9c138$0$4531$9b4e6d93@newsspool3.arcor-online.net> <1rt8kdcrj6tf.1qgvycc6vh357$.dlg@40tude.net> <46db2bf4$0$7699$9b4e6d93@newsspool2.arcor-online.net> <1188816674.2630.25.camel@kartoffel.vocalweb.de> <9cdmw7k85sey.85sb2t1bjefy$.dlg@40tude.net> NNTP-Posting-Host: mailhost.axlog.fr Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Trace: s1.news.oleane.net 1188835274 18670 195.25.228.57 (3 Sep 2007 16:01:14 GMT) X-Complaints-To: abuse@oleane.net NNTP-Posting-Date: Mon, 3 Sep 2007 16:01:14 +0000 (UTC) User-Agent: Thunderbird 2.0.0.6 (Windows/20070728) In-Reply-To: <9cdmw7k85sey.85sb2t1bjefy$.dlg@40tude.net> Xref: g2news2.google.com comp.lang.ada:1701 Date: 2007-09-03T17:55:33+02:00 List-Id: Dmitry A. Kazakov a �crit : > It is difficult to see how an abstract state machine is not a type. The > very word abstract assumes generalization, reuse and instances. It is types > and generics, the tools to express the idea of instances. > Sorry, but I beg to disagree here. Abstraction is about the reduction of a real world objet to those elements that are relevant for a given point of view. A singleton is an abstraction of a single object, and does not need a type. I don't see anything in the word abstract that assumes generalization. -- --------------------------------------------------------- J-P. Rosen (rosen@adalog.fr) Visit Adalog's web site at http://www.adalog.fr