From:	"Matthew Bennett" <Bennett AT btinternet DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Simple newbie problem - arrays
Date:	3 May 1997 10:05:13 GMT
Organization:	Visit my web page at http://www.btinternet.com/~bennett/matthew.html
Lines:	29
Message-ID:	<01bc57a9$47894800$0b3e63c3@8652hvt73761>
NNTP-Posting-Host:	host5-99-62-11.btinternet.com
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Hi,

I'm new to djgpp, and even C/C++.  I'm not however new to programming ;)
Anyway, one of the cool things about djgpp is it's protected mode stuff,
allowing you to easily use extended memory.
I decided to try this out with a simple array. Here's my program:

#include <stdio.h>     // I know I don't need this, but hey...

int main(void)
{
int q[100][100][100];
q[80][80][80] = 44;
printf("%d", q[80][80][80]);
return 0;
}

This array should only use about a meg, and so it should have plenty of
space with extended mem etc.
However, when I run it the program quits with an error - presumably because
it ran out of memory.  It works fine for small arrays though.

How can I use large arrays like this - there must be a way in djgpp to
store them using extended memory.

Any suggestions?

Thanks, 
Matthew

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