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: a07f3367d7,c5168ea14aa45fce
X-Google-Attributes: gida07f3367d7,public,usenet
X-Google-NewGroupId: yes
X-Google-Language: ENGLISH,ASCII-7-bit
X-Received: by 10.180.74.141 with SMTP id t13mr53872wiv.5.1359689120688;
        Thu, 31 Jan 2013 19:25:20 -0800 (PST)
Path: 
 bp2ni9412wib.1!nntp.google.com!feeder1.cambriumusenet.nl!82.197.223.103.MISMATCH!feeder3.cambriumusenet.nl!feed.tweaknews.nl!194.109.133.86.MISMATCH!newsfeed.xs4all.nl!newsfeed3.news.xs4all.nl!xs4all!newspeer1.nac.net!border4.nntp.dca.giganews.com!border2.nntp.dca.giganews.com!nntp.giganews.com!newsfeed.news.ucla.edu!news.snarked.org!feeder.erje.net!eu.feeder.erje.net!news.stack.nl!aioe.org!.POSTED!not-for-mail
From: "John B. Matthews" <nospam@nospam.invalid>
Newsgroups: comp.lang.ada
Subject: Re: Ada 2005+ interface example
Date: Mon, 28 Jan 2013 17:02:04 -0500
Organization: The Wasteland
Message-ID: <nospam-650EA7.17020328012013@news.aioe.org>
References: <d1374e42-b8a1-476f-a7e1-18d1371643cd@googlegroups.com>
 <fpwdcz6f1wcp$.9adzbodl3jbk.dlg@40tude.net>
 <ea40e94d-2121-4cac-bd24-64e51fbb302c@l13g2000yqe.googlegroups.com>
NNTP-Posting-Host: LQJtZWzu+iKlBROuDg+IUg.user.speranza.aioe.org
Mime-Version: 1.0
X-Complaints-To: abuse@aioe.org
User-Agent: MT-NewsWatcher/3.5.3b3 (Intel Mac OS X)
X-Notice: Filtered by postfilter v. 0.8.2
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit
Date: 2013-01-28T17:02:04-05:00
List-Id: <comp.lang.ada>

In article 
<ea40e94d-2121-4cac-bd24-64e51fbb302c@l13g2000yqe.googlegroups.com>,
 Gautier write-only <gautier_niouzes@hotmail.com> wrote:

> Thanks a lot, I'll have a look. Perhaps it would be useful that I 
> explain why I would eventually use interfaces. I am reviving a "toy 
> compiler" of the late 80's, SmallAda, which was in Turbo Pascal and a 
> Mac Pascal too, now translated in Ada and working. I would like to 
> turn the low level machine code emission into a "generic" form.
> As I see it, it would be around a stream, with many methods, all 
> abstract for the root type, which would be implemented as code 
> emission for target processors (real or virtual). And perhaps 
> interfaces would be useful there (it is rather an intuition).

I often return to the Rationale for Ada 2005, 2.4 Interfaces:

<http://www.adaic.org/resources/add_content/standards/05rat/html/Rat-2-4.html>

-- 
John B. Matthews
trashgod at gmail dot com
<http://sites.google.com/site/drjohnbmatthews>