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From: c9524 AT rrzc2 (Ulrich Windl)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: mysterious error -- Need Help!
Date: 22 Jun 1995 13:08:34 GMT
Organization: University of Regensburg, Germany
Lines: 36
References: <3sb51j$9bu AT berlin DOT infomatch DOT com>
Reply-To: Ulrich Windl <Ulrich DOT Windl AT rz DOT uni-regensburg DOT de>
Nntp-Posting-Host: rrzc2.rz.uni-regensburg.de
To: djgpp AT sun DOT soe DOT clarkson DOT edu
Dj-Gateway: from newsgroup comp.os.msdos.djgpp

In article <3sb51j$9bu AT berlin DOT infomatch DOT com> haasj AT infomatch DOT com (Jarrod Haas) writes:

> I have this program that I'm writing under djgpp that refuses to run 
> properly. It compiles fine with no warnings or errors, but at runtime if use
> 1 or more command line paramaters, i get:
> 
> 
> RPG (Random Primitive Generator) 0.0 Beta -- Shape Generator for POV
> (C) 1995 Jarrod Haas, Random Conformity Soft.
> Segmentation violation in pointer 0x00000000 at d8:13ac
> blah blah blah
> call frame traceback EIPs:
> 0x000013ac
> 
> If it makes any difference, my commandline for the compile was 
> 

> /*Globals*/
> char **args;
> int verbose;
> int numargs;
> 

>   /*pass command line to global variable*/
>   for (c = 0; c <= argc; c++)
>   {
>     args[c] = argv[c];
>   }
>   numargs = argc;
> 

Here "args" does point to nowhere (NULL). You can't store something there.
You might insert a "args = malloc(sizeof(char *) * argc)". But why copying;
you are just copying pointers!!

Ulrich