From: Andreas Schwab <schwab@suse.de>
To: Christian Groessler <cpg@aladdin.de>
Cc: Ian Lance Taylor <ian@wasabisystems.com>, GCC List <gcc@gcc.gnu.org>
Subject: Re: signed/unsigned right shift
Date: Mon, 15 Mar 2004 22:18:00 -0000 [thread overview]
Message-ID: <je65d5g3f0.fsf@sykes.suse.de> (raw)
In-Reply-To: <jead2hg3l7.fsf@sykes.suse.de> (Andreas Schwab's message of "Mon, 15 Mar 2004 23:14:44 +0100")
Andreas Schwab <schwab@suse.de> writes:
> Christian Groessler <cpg@aladdin.de> writes:
>
>> But sentence 3 says "The integer promotions preserve value including
>> sign."
>>
>> So shouldn't the conversion be "unsigned short" to "unsigned int"?
>
> No, it just says that the _value_ is preserved. It doesn't say anything
> about the type. That's one of the key difference between K&R C and ISO
> C: type preservation vs. value preservation.
s/type preservation/unsigned preservation/
Andreas.
--
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux AG, MaxfeldstraÃe 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:[~2004-03-15 22:18 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-15 22:02 Christian Groessler
2004-03-15 22:14 ` Andreas Schwab
2004-03-15 22:18 ` Andreas Schwab [this message]
2004-03-15 22:17 ` Ian Lance Taylor
-- strict thread matches above, loose matches on Subject: below --
2004-03-15 22:24 Christian Groessler
2004-03-14 18:09 Christian Groessler
2004-03-14 18:23 ` Ian Lance Taylor
2004-03-12 21:25 Christian Groessler
2004-03-12 22:24 ` Andreas Schwab
2004-03-12 22:37 ` Dale Johannesen
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