From: dns AT cyberdude DOT com
Newsgroups: comp.os.msdos.djgpp
Subject: Infinite loop???
Date: Wed, 08 Jul 1998 22:38:27 +0200
Organization: MatavNet
Lines: 17
Message-ID: <35A3D8C3.208E6D23@cyberdude.com>
NNTP-Posting-Host: line-210-94.dial.matav.net
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Precedence: bulk

I use the following code:
unsigned short s=1;
unsigned int   t=1;
while ((s<<t)!=0) {	// this loop is infinite! but why?
      t++; }
In RHIDE I tried to step trough the code but even when the expression
seems to be false it stays in the loop.
changing the loop to:  
while ((unsigned short)(s<<t)!=0) {	
      t++; }            // this gives good answer
but then the above wont work on data types int/long only if I change !=0
to != 1
I don't understand why its working like this. I used BC before and it
gave me correct answers.
Any help would be appreciated.
Thanks,
Dns