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From: "Alex R. Mosteo" <devnull@mailinator.com>
Newsgroups: comp.lang.ada
Subject: Re: generic question
Date: Mon, 20 Nov 2006 11:35:12 +0100
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Date: 2006-11-20T11:35:12+01:00
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Pascal Obry wrote:

> Stefan Bellon a �crit :
>> Or, since you are referring to the Ada 2005 container classes anyway,
>> using Ada 2005 and anonymous access:
>> 
>> generic
>>    type T is private;
>> package P is
>>    type Node is record
>>       Data : T;
>>       Prev : access Node;
>>       Next : access Node;
>>    end record;
>> end P;
> 
> You probably don't want "access Node" here as you won't be able to
> deallocate such pointer. There is no way to instantiate
> Unchecked_Conversion with an anonymous access type. This is something I
> found quite irritating in Ada 2005.

Isn't enough to have a wrapper access type at the point of deallocation? Or
are some scope rules preventing this?