From: Andreas Schwab <schwab@suse.de>
To: Christian Groessler <cpg@aladdin.de>
Cc: gcc@gcc.gnu.org
Subject: Re: signed/unsigned right shift
Date: Fri, 12 Mar 2004 22:24:00 -0000 [thread overview]
Message-ID: <jeish9vh43.fsf@sykes.suse.de> (raw)
In-Reply-To: <87wu5pwyg7.fsf@aladdin.de> (Christian Groessler's message of "12 Mar 2004 22:24:40 +0100")
Christian Groessler <cpg@aladdin.de> writes:
> I have the following program which takes 2 unsigned short values,
> multiplies them and shifts the result right.
>
> This right shift gives a value with 1s bits at the high end.
This is correct. The promotion rules let unsigned short promote to int,
since the latter can represent all values of the former.
Andreas.
--
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux AG, Maxfeldstraße 5, 90409 Nürnberg, Germany
Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
next prev parent reply other threads:[~2004-03-12 22:24 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-12 21:25 Christian Groessler
2004-03-12 22:24 ` Andreas Schwab [this message]
2004-03-12 22:37 ` Dale Johannesen
2004-03-14 18:09 Christian Groessler
2004-03-14 18:23 ` Ian Lance Taylor
2004-03-15 22:02 Christian Groessler
2004-03-15 22:14 ` Andreas Schwab
2004-03-15 22:18 ` Andreas Schwab
2004-03-15 22:17 ` Ian Lance Taylor
2004-03-15 22:24 Christian Groessler
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