X-Authentication-Warning: delorie.com: mail set sender to djgpp-bounces using -f
From: Mok-Kong Shen <mok-kong DOT shen AT t-online DOT de>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: bit shifting problem
Date: Thu, 10 Feb 2005 11:27:13 +0100
Organization: T-Online
Lines: 16
Message-ID: <cufcpq$6g2$03$1@news.t-online.com>
References: <cue1dv$n1b$00$1 AT news DOT t-online DOT com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit
X-Trace: news.t-online.com 1108031098 03 6658 qTeQrrFlFKikQ+V 050210 10:24:58
X-Complaints-To: usenet-abuse AT t-online DOT de
X-ID: Tbk4fGZYZeVXjGwlkmseAOy2uATKnP+fvfqGAoEuevw8Lfodza7gE5
User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax)
X-Accept-Language: en-us, en
In-Reply-To: <cue1dv$n1b$00$1@news.t-online.com>
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com
Errors-To: nobody AT delorie DOT com
X-Mailing-List: djgpp AT delorie DOT com
X-Unsubscribes-To: listserv AT delorie DOT com
Precedence: bulk



Mok-Kong Shen wrote:
> 
> Sorry for posing yet another, possibly also newbie, problem.
> In the following code I expected the values of k and n to be
> both 0, since shifting 32 bits for a 32-bit word effectively
> clears it. .........
[snip]

Apology. I have known the answer. Shifting by 32 for a 32-bit
quantity is undefined in the standard. gcc simply does nothing
in this situation, both for the left and the right shift.

M. K. Shen