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From: "Marin David Condic" <dont.bother.mcondic.auntie.spam@[acm.org>
Newsgroups: comp.lang.ada
Subject: Re: List container strawman
Date: Fri, 2 Nov 2001 11:36:36 -0500
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I'd think that in *most* instances you aren't going to need to instantiate
from within a subprogram. Hence, Controlled is probably not that much of a
burden. (We don't live in a perfect world do we?)

How does Ada.Strings.Unbounded handle not being limited? I didn't see an
indication of it being derived from Controlled and it is doing something
fairly similar to lists. Or does it rely on behind-the-scenes magic to cope
with their dynamic nature?

MDC
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Marin David Condic
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Pace Micro Technology Americas    www.pacemicro.com
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"Ted Dennison" <dennison@telepath.com> wrote in message
news:WOzE7.10186$xS6.14012@www.newsranger.com...
>
> Ahh. It finally dawned on me what your objection to private was. (I'm a
little
> slow today again.) We are talking about what happens when you do a
> "List1 := List2;", aren't we?
>
> Yeah, it is either going to have to be limited, or be derived from
> Ada.Finalization.Controlled. Limited gets rid of the ability to perform
> funtional operations on it; Controlled get rid of the ability to
instantiate it
> from within a subprogram.
>
> Have I mentioned lately how much I dislike the implementation of
controlled
> types? :-{
>