From:	"Gerhard W. Gruber" <g DOT gruber AT sis DOT co DOT at>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Bug in gcc 2.7.2?
Date:	Thu, 16 Apr 1998 15:47:00 +0200
Organization:	S.I.S. IT
Lines:	39
Message-ID:	<35360BD4.5DB6C8C5@sis.co.at>
NNTP-Posting-Host:	192.56.14.75
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

I just encountered a strange thing. I was using a loop that process a buffer.
When the index is outside the buffersize the code should read the next block
from the file and continue. To do this I'm using the modulo operator but there
seems a bug with this.

bl = BufLen % i;

gives following results:
BufLen = 4096
i = 1
bl = 0

i = 2
bl = 0

i = 3
bl = 1 ???????

All variables are unsigned long

I just checked the code and substituted "bl = BufLen % i" with "bl = i / BufLen"
and this works fine.

-- 

Bye,
   Gerhard

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