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Mail Archives: djgpp/2001/07/05/19:01:27

From: Andreas Dorn <adornno1 AT web DOT de>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Large Arrays
Date: Fri, 06 Jul 2001 00:42:54 +0200
Organization: University of Heidelberg, Germany
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Hans-Bernhard Broeker wrote:
> Andreas Dorn <adorn AT ix DOT urz DOT uni-heidelberg DOT de> wrote:
> > I need a really large array for a matrix (~100 MB).
> 
> Fine. But you should re-think the way you're using to create it.
> 
> [.. inside main(): ..]
> >   float TheMatrix[Dimension][Dimension];
> 
> This creates the matrix in the stack. That's bad, because the stack
> has a fixed maximal size, on DOS/DJGPP (and several other platforms).
> Use the heap, instead (--> 'new' or 'malloc'). Methods for creating 2D
> dynamical arrays that still can be accessed by a[i][j] notation are in
> the comp.lang.c FAQ.

Thank you for the hint. I re-arranged the Matrix definition and now
everything works fine.

Andreas Dorn

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