From: Nate Eldredge <neldredge AT hmc DOT edu>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: upgrade chaos
Date: 12 Jan 2000 01:03:24 -0800
Organization: InterWorld Communications
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References: <387B38E0 DOT 1047EF30 AT mpx DOT com DOT au>
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jazir <entropic AT mpx DOT com DOT au> writes:

> hey everyone,
> 
>   i decided to upgrade to djgppv2.03, and GCC 2.95.2 in the one hit
> 
>   bad idea!
> 
>   cuz now i have no idea which change caused my problems.  i have a textfile
> {de}/compression program that i wrote, and it used to work fantastically with
> all kinds of files, even very large ones.
> 
>   when compiled with my new installation, i get SIGSEGV in the function free()
> 
>   this even happens when free is called by functions such as fclose(), rather
> then being called by my functions.  i don't see any reason for this to be
> happening, and i'm wondering if anyone has some clues for me..?

I'd say there's a good chance your code has a bug that just wasn't
tickled by the old versions.  The free crash indicates that it may be
a dynamic allocation problem; you might try a malloc debugger.
There's my YAMD:

http://www3.hmc.edu/~neldredge/yamd/

as well as several others on Simtelnet.

-- 

Nate Eldredge
neldredge AT hmc DOT edu