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From: Martin Str|mberg <ams AT dexter DOT ludd DOT ltu DOT se>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: General Protection Fault error is intermittent
Date: Sun, 23 Jun 2013 15:54:27 +0000 (UTC)
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K.J.Williams <lordwilliams1972 AT gmail DOT com> wrote:
> Yeah I am not checking for a null pointer in the second use 
> of strtok() in my string_parser() to prevent me from copying 
> the string back to the calling statement. Thats not why 
> I posted my message here. You see, I wrote the program parstext.c 
> to test my function for the larger program that I want to implement 
> it for. But the problem is that DJGPP will not warn me about violating 
> memory boundaries with the parstext.c program as it does with the 
> bigger program WATT ( a project of several files ). I wanted to know 
> why isn't DJGPP warning me when I run parstext.c runs without complaints?   
> Its basically a segmented memory violation caused by strtok on following 
> calls.

It's WINDOWS's fault. It's DPMI host doesn't provide the functionality
that this requires. Try booting in plain DOS and run with CWSDPMI and
you should get a crash if you're using NULL pointers.


-- 
MartinS