From: The NiBBLeR <bws AT degas DOT telebyte DOT nl>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: environment djggp: ALL OK, else NOT :(
Date: Thu, 11 Sep 1997 07:53:20 +0200
Organization: Brainwave Software
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> I'm programming a 3d-engine in djgpp at the moment.
> But now I found something ratherly strange:
> 
> when I have the DJGPP-environment-variable on:
>     SET DJGPP=C:\DJGPP\DJGPP.ENV
> my engine works OK !!!
> 
> but when I want to run this engine (I include cwsdpmi.exe for the dpmi)
> on another computer without djgpp, I get a general protection fault ????
> (btw I tried all kind of different systems, and it only works when djgpp
> is on there... )
> 
> and I would like to spread my engine without the need of WHOLE DJGPP...
> 
> Does somebody know how this is possible, and what the causes may be...

Hello Me again,

I found the cause of the gpf, something like this:

char s[3][4];
int  i,j;

for (i=0; i<3; i++)
  for (j=0; j<4; j++)
     s[j][i]=3; // Note I swapped the i and the j in this statement


But it was hard to find this error, cause when I had the
djgpp-environment variable on,
it didn't generate an error: IT all worked fine !!!!(Even the results
looked ok !)

Thank you for all your time and help...

Greets,

Rick Blommers