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From: matthew_heaney@acm.org (Matthew Heaney)
Subject: Re: Allocating memory--Ada95
Date: 1998/05/19
Message-ID: <matthew_heaney-ya023680001905982305450001@news.ni.net>#1/1
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References: <6jsa9j$ous$1@nnrp1.dejanews.com>
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Date: 1998-05-19T00:00:00+00:00
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In article <6jsa9j$ous$1@nnrp1.dejanews.com>, jsanchor@my-dejanews.com wrote:

(start of quote)
I am trying to dynamically allocate storage(using 'new' allocator)...but I
need to allocate within certain bounds. Does anybody know how.
Thank you in advance.
(end of quote)

Override Root_Storage_Pool, declare an object of that type, and place
storage in memory where you require, as in 

with System.Storage_Pools; use ...;
package My_Storage_Pools is

   type My_Storage_Pool (Size : Positive) is
      new Root_Storage_Pool with record
         Elements : Storage_Element_Array (1 .. Size);
      end record;

   <primitive ops>

end;

with My_Storage_Pool; use ...;
package Allocation is

   Pool : My_Storage_Pool (<some large size>);
   for Pool'Address use <some address>;

end;

Now when you declare an access type, use your custom pool to as its storage
pool:

with Allocation;
package P is

   type T is ...;
   type T_Access is access T;
   for T_Access'Storage_Pool use Allocation.Pool;

end;

That's the general flavor of solution.