signed/unsigned right shift

Andreas Schwab schwab@suse.de
Mon Mar 15 22:14:00 GMT 2004


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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