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,e1d728aa632a5b94
X-Google-NewGroupId: yes
X-Google-Attributes: gida07f3367d7,domainid0,public,usenet
X-Google-Language: ENGLISH,ASCII-7-bit
Received: by 10.68.228.227 with SMTP id sl3mr18098070pbc.5.1341735060056;
        Sun, 08 Jul 2012 01:11:00 -0700 (PDT)
Path: 
 l9ni11158pbj.0!nntp.google.com!news2.google.com!goblin2!goblin.stu.neva.ru!aioe.org!.POSTED!not-for-mail
From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: Gnat: broken dispatch tables for interface types ?
Date: Sun, 8 Jul 2012 10:10:58 +0200
Organization: cbb software GmbH
Message-ID: <iqbn40vq6uns$.1ftz1lcr88qk0.dlg@40tude.net>
References: <c231a9b2-8fb7-41ab-98a2-72173a08f66c@googlegroups.com>
 <19yhfqeqkm9kc$.fcax7yetctwy$.dlg@40tude.net>
 <jtbdd0$2mft$1@adenine.netfront.net>
Reply-To: mailbox@dmitry-kazakov.de
NNTP-Posting-Host: 9A8bJrx4NhDLcSmbrb6AdA.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: 2012-07-08T10:10:58+02:00
List-Id: <comp.lang.ada>

On Sun, 08 Jul 2012 00:38:05 -0700, Jeffrey Carter wrote:

>> On Sat, 7 Jul 2012 20:02:36 -0700 (PDT), rodakay@internode.on.net wrote:
>>
>>   Has anyone had any success with interface types ?
> 
> According to Randy Brukardt, ARG member and editor of the ARM, "Interfaces are 
> worthless."

Yes, if he meant that interface is nothing but abstract tagged null record
plus some silly restrictions.

No, if he meant an ability to codify the interface of a type, multiple
inheritance, interface inheritance, generic programming.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de