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From: Duncan Sands <baldrick@free.fr>
To: comp.lang.ada@ada-france.org
Subject: Re: Possible heap problem on Windows, help sought
Date: Wed, 29 Nov 2006 15:20:00 +0100
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Date: 2006-11-29T15:25:01+01:00

> Well I made a small test program using my ordinary compilation options 
> (-g -O2 -gnato -fstack-check) and it happily allocated and used 300 MB 
> of heap, as I asked it to, so it seems that this is not a heap problem. 
> Sorry for a mistaken hypothesis, I should have checked it before posting 
> my question. But the problem remains and any advice will be gratefully 
> received, although I now suspect that the cause may be a programming 
> error, a Heisenbug that disappears in the debugger and does not manifest 
> on Linux for some reason.

It could well be memory corruption or the use of an uninitialized variable.
These both have a tendency to manifest themselves differently in the debugger.
Try running your program under valgrind.

Ciao,

Duncan.