Re: xor as a lazy comparison

Puneet Vyas
2005-07-24T22:16:08Z

Jan Engelhardt wrote:

>>To confuse you, coders with assembly or hardware background throw in
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>I doubt that. I'm good enough assembly to see this :)
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>>equivalent bit operations to succinctly describe their visualisation
>>of solution space... Perhaps the writer _wanted_ you to pause and
>>think? Maybe the compiler produces better code? Try it and see.
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>It produces a simple CMP. Should not be inefficient, though.
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>Jan Engelhardt
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I just compiled two identical program , one with "!=" and other with
"^". The assembly output is identical.