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: a07f3367d7,c689b55786a9f2bd X-Google-Attributes: gida07f3367d7,public,usenet X-Google-NewGroupId: yes X-Google-Language: ENGLISH,ASCII Path: g2news2.google.com!news2.google.com!npeer02.iad.highwinds-media.com!news.highwinds-media.com!feed-me.highwinds-media.com!nntp.club.cc.cmu.edu!feeder.erje.net!newsfeed.straub-nv.de!noris.net!newsfeed.arcor.de!newsspool2.arcor-online.net!news.arcor.de.POSTED!not-for-mail From: "Dmitry A. Kazakov" Subject: Re: for S'Image use Func?? Newsgroups: comp.lang.ada User-Agent: 40tude_Dialog/2.0.15.1 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit Reply-To: mailbox@dmitry-kazakov.de Organization: cbb software GmbH References: <4be417b4$0$6992$9b4e6d93@newsspool4.arcor-online.net> Date: Fri, 7 May 2010 19:38:12 +0200 Message-ID: <1b4dbbn0xubms$.1pmm5qr1dwcdt$.dlg@40tude.net> NNTP-Posting-Date: 07 May 2010 19:38:06 CEST NNTP-Posting-Host: d1544e8f.newsspool4.arcor-online.net X-Trace: DXC=h?A@8H_@:7RPU8j_I0DN6_4IUK On Fri, 07 May 2010 17:46:09 +0200, Yannick Duch�ne (Hibou57) wrote: > Le Fri, 07 May 2010 16:25:37 +0200, Robert A Duff > a �crit: >> And teaching beginners how to instantiate generics, >> when there's a simple 'Image feature, is not a good idea. > Mhhhh... don't agree. 'Image is a kind of hidden genericity, Polymorphism. Genericity is a kind of polymorphism (static), but not all polymorphism is genericity. If you consider image statically polymorphic, then it is more the C++ way than the Ada's one. Compare: T'Image(X) image(x) -- Regards, Dmitry A. Kazakov http://www.dmitry-kazakov.de