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Re: signed/unsigned right shift
- From: Andreas Schwab <schwab at suse dot de>
- To: Christian Groessler <cpg at aladdin dot de>
- Cc: Ian Lance Taylor <ian at wasabisystems dot com>,GCC List <gcc at gcc dot gnu dot org>
- Date: Mon, 15 Mar 2004 23:14:44 +0100
- Subject: Re: signed/unsigned right shift
- References: <87ish53h24.fsf@aladdin.de>
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.
Andreas.
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Andreas Schwab, SuSE Labs, schwab@suse.de
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