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From: Francisco Javier Loma Daza <Francisco.Loma@isotrol.com>
Newsgroups: comp.lang.ada
Subject: Re: List container strawman
Date: Fri, 02 Nov 2001 16:57:57 +0100
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Date: 2001-11-02T16:57:57+01:00



On 2 Nov 2001, Marin David Condic wrote:
> Date: 2 Nov 2001 14:57:16 GMT
> To: comp.lang.ada@ada.eu.org
> From: "Marin David Condic" <dont.bother.mcondic.auntie.spam@[acm.org>]
> Reply-To: comp.lang.ada@ada.eu.org
> Sender: comp.lang.ada-admin@ada.eu.org
> Subject: Re: List container strawman
> 
> Limited private sounds like a good idea to me - with operations to assign
> one list to another via duplication.
> 
> One other thing: Allow me publically to display my ignorance. If Element
> is
> private, how does this play with tagged records? I know there is a
> "tagged
> private" formal type - but I've never played with it so I don't know what
> the implications are for that.


    If the formal is tagged private then you can derive a tagged type from
it.

generic
    type T is tagged private;
package DD

    type Object is new T with null record;

end DD;