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| 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 |
| Lines: | 19 |
| Message-ID: | <3B44ED6E.E3EDD428@web.de> |
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| To: | djgpp AT delorie DOT com |
| DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
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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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