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Subject:	RE: Trouble of using very large arrays
Date:	Thu, 22 Apr 2004 17:21:39 -0400
Message-ID:	<ACAAE6BD7520AB4CB2744D1D1BAD3A2BA1424A@jupiter.insideai.com>
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Thread-Topic:	Trouble of using very large arrays
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From:	"John Bond" <Jbond AT ai-logix DOT com>
To:	<djgpp AT delorie DOT com>
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Reply-To:	djgpp AT delorie DOT com

******M. K. Shen wrote:
I have difficulty in using very large arrays. In a
simple program I could have 'unsigned int a[70000][2]'
without problem but with 'unsigned int a[80000][2]' the
program aborts without even the code being changed to
access the increased new part of the array. Why is
this so? Thanks in advance.

******
Looks like you over-ran your stack.  Look at FAQ 6.6 to expand the stack with the global _stklen.  When I had this problem, I added the line:

unsigned _stklen = 1048576;  /* need a 1MB stack */

to double the stack size.  If you know your local variable size needed (in bytes), this is useful.  Otherwise use the heap.

-JBond, jbond_at_ai-logix.com (replace _at_ with @)

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