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Newsgroups: comp.lang.ada
From: Ted Dennison<dennison@telepath.com>
References: <3BE301D1.4010106@telepath.com> <9s6d45$bd2$1@nh.pace.co.uk>
 <9s74eg$12b2bq$5@ID-25716.news.dfncis.de>
Subject: Re: List container strawman 1.1
Message-ID: <EXSG7.18921$xS6.30449@www.newsranger.com>
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Date: Fri, 09 Nov 2001 15:51:01 GMT
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Date: 2001-11-09T15:51:01+00:00
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In article <9s74eg$12b2bq$5@ID-25716.news.dfncis.de>, Nick Roberts says...
(Talking about adding Text I/O routines for lists to the package)
>But this can be done, and should be done, by declaring 'read' and 'write'
>procedures for the List_Type, conforming to what RM95 13.13.2 requires, and
>then using representation clauses to replace the default List_Type'Read and
>List_Type'Write attributes. This way, the required behaviour becomes
>implicit and automatic.

The problem with doing that is that it must be done in the same package where
the type is declared. In this case, that's the generic list package. If this is
something compiler vendors provide, or something that gets put under "Ada.*" one
day, modifying the body may not be possible.

---
T.E.D.    homepage   - http://www.telepath.com/dennison/Ted/TED.html

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