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From: Robert A Duff <bobduff@shell01.TheWorld.com>
Newsgroups: comp.lang.ada
Subject: Re: heap size exceeded for large matrices
Date: Mon, 30 Aug 2010 13:00:40 -0400
Organization: The World Public Access UNIX, Brookline, MA
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Date: 2010-08-30T13:00:40-04:00
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Simon Wright <simon@pushface.org> writes:

> "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> writes:
>
>> Now if you either declare an access type in a scope or else use an
>> anonymous type then any object allocated by new and assigned to this
>> pointer will be automatically destroyed when the scope is left:
>>
>>    declare
>>       type Pointer is access all Object;
>>       X1 : Pointer := new Object;
>>       X2 : access Object := new Object;
>>    begin
>>       ... -- Using X1 and X2
>>    end; -- Targets of X1 and X2 are finalized and freed here
>
> I'm pretty sure that GNAT does this by using the Reclaim pool mentioned
> above to implement the storage pool.

I don't think so.  I think those objects are finalized,
but never freed.

And I think that's desirable behavior, because things like
"Reclaim pool" have a cost, so should be enabled only upon
explicit request.

- Bob