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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: heap size exceeded for large matrices
Date: Mon, 30 Aug 2010 17:55:20 +0100
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Date: 2010-08-30T17:55:20+01:00
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"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.

> For a reference-counted GC there are several implementations of. For
> example this:
>
> http://www.dmitry-kazakov.de/ada/components.htm#Objects_etc

And the Booch Components, http://sourceforge.net/projects/booch95/files/