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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 23:18:27 +0100
- Subject: Re: signed/unsigned right shift
- References: <87ish53h24.fsf@aladdin.de> <jead2hg3l7.fsf@sykes.suse.de>
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.
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Andreas Schwab, SuSE Labs, schwab@suse.de
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