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From: anon@att.net
Newsgroups: comp.lang.ada
Subject: Re: newbie: can't read fast enough... :-)    memory leaks...
Date: Fri, 5 Sep 2014 04:58:03 +0000 (UTC)
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Date: 2014-09-05T04:58:03+00:00
List-Id: <comp.lang.ada>

For GNAT, you can copy to your local dir and modify 
"System.Pool_Global" (GNAT) and "System.Pool_Local" (GNAT) 
compile and link them you to your program.  The "Deallocation" 
routine is normally unfunctional so memory is "reclaimed" during 
program finalization only.  So the "Deallocate" routine that needs 
to be modified for GC collection.

But leaks may still appear from using outside non-Ada libraries or 
making some OS calls. It one reason why "binding" to these libraries 
or routines should be limited to testing phase only and then rewritten 
in Ada if possible.


In <wccfvg78ck5.fsf@shell01.TheWorld.com>, Robert A Duff <bobduff@shell01.TheWorld.com> writes:
>Brad Moore <brad.moore@shaw.ca> writes:
>
>> I wonder how many implementations are out there that do not have a
>> default storage pool that reclaims the storage of a collection of an
>> nested access type when the master associated with of the access type
>> declaration is exited.
>
>I know of only one compiler that frees local collections automatically
>-- Rational/IBM/Atego.  Unless you use a Storage_Size or Storage_Pool
>clause, which works in all compilers, AFAIK.
>
>> I'm pretty sure that GNAT does for Windows and Linux, but perhaps they
>> have a minimalist runtime for certain targets where this is not needed
>> or desired?
>
>No, GNAT doesn't do it.  I don't think it should be automatic: if you
>want that functionality, use a storage pool.
>
>- Bob