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-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 103376,499373c5a06cccc1
X-Google-Attributes: gid103376,public
X-Google-ArrivalTime: 2004-02-16 08:16:45 PST
Path: 
 archiver1.google.com!news2.google.com!news.maxwell.syr.edu!newsfeed.icl.net!newsfeed.fjserv.net!news-FFM2.ecrc.net!uio.no!ntnu.no!not-for-mail
From: Preben Randhol <randhol+valid_for_reply_from_news@pvv.org>
Newsgroups: comp.lang.ada
Subject: Re: Variant records..
Date: Mon, 16 Feb 2004 16:16:44 +0000 (UTC)
Organization: PVV
Message-ID: 
 <slrnc31r7c.r6.randhol+valid_for_reply_from_news@k-083152.nt.ntnu.no>
References: <e8f9995c.0402151451.5bbe03de@posting.google.com>
 <slrnc318ga.3ja.randhol+valid_for_reply_from_news@k-083152.nt.ntnu.no>
 <e8f9995c.0402160725.45b85ca8@posting.google.com>
NNTP-Posting-Host: k-083152.nt.ntnu.no
X-Trace: tyfon.itea.ntnu.no 1076948204 21525 129.241.83.152 (16 Feb 2004
 16:16:44 GMT)
X-Complaints-To: usenet@itea.ntnu.no
NNTP-Posting-Date: Mon, 16 Feb 2004 16:16:44 +0000 (UTC)
User-Agent: slrn/0.9.8.0 (Linux)
Xref: archiver1.google.com comp.lang.ada:5602
Date: 2004-02-16T16:16:44+00:00
List-Id: <comp.lang.ada>

On 2004-02-16, Ganesh Ramasivan <ganesh.ramasivan@gdcanada.com> wrote:
> Preben Randhol <randhol+valid_for_reply_from_news@pvv.org> wrote in message news:<slrnc318ga.3ja.randhol+valid_for_reply_from_news@k-083152.nt.ntnu.no>...
>> On 2004-02-15, Ganesh Ramasivan <ganesh.ramasivan@gdcanada.com> wrote:
>> > In the following example, how would i forbid the user of data type Foo
>> > from specifying the following:
>> >
>> > John : Foo(Vehicle => MAN, Power => AUTOMATIC);
>> >
>> > ie. is there a way to restrict the user from specifying certain types
>> > as variants?
>> 
>> I guess this is homework? If it is why don't you simply try to do this
>> and see what happens?
>
> This is just a simple example I am working with as I am an ada newbie.
>
> I tried and it compiles. What I am trying to do is to prevent the user
> from creating types that do not make sense.

If you put

   Audio : Foo(Vehicle => MAN, Power => AUTOMATIC);

it won't compile, so I do not really understand your question.

-- 
"Saving keystrokes is the job of the text editor, not the programming
 language."