Message-ID: <D1DE20405ECBD011B2AC0060974BC6EA04F925@DBSERVER>
From: "EFT.Eric Devolder" <eric DOT devolder AT eft DOT be>
To: djgpp AT delorie DOT com
Subject: RE: Program goes wrong when optimized under gcc 2.8
Date: Mon, 28 Sep 1998 15:54:55 +0200
MIME-Version: 1.0
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> ----------
> From: 	Eli Zaretskii[SMTP:eliz AT is DOT elta DOT co DOT il]
> Sent: 	lundi 28 septembre 1998 14:39
> To: 	EFT.Eric Devolder
> Subject: 	Re: Program goes wrong when optimized under gcc 2.8
> 
> 
> On Mon, 28 Sep 1998, EFT.Eric Devolder wrote:
> 
> > > When I compile the program like this: gcc -o hot2std.exe hot2std.c
> > > it works perfeclty.
> > > If I try to compile with optimization (gcc -O[1,2 or 3] -o
> hot2std.exe
> > > hot2std.c), I get strange outputs, compared to those of the debug
> > > version.
> 
> This line is the villain:
> 
> 	sprintf(temp,"0002%06.6ldA%019.19s  \n"
> 
> This produces 33 characters, including the terminating '\0', whereas 
> temp[] is declared as "char temp[32];".
> 
> I don't know whether there are any more problems in your program.
> 
> 
I've made the change, but the problem still remain. I really don't know
what is the problem.

If you want to have a run, just perform
gcc -O3 -o hot2std.exe hot2std.c (to get a buggy version)
gcc -g -o hot2std.exe hot2std.c (to get a working version)
then
hot2std raw (and compare output of both versions);