Re: xor as a lazy comparison

From: Puneet Vyas
Date: Sun Jul 24 2005 - 17:17:25 EST

Jan Engelhardt wrote:

To confuse you, coders with assembly or hardware background throw in

I doubt that. I'm good enough assembly to see this :)

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.

It produces a simple CMP. Should not be inefficient, though.

Jan Engelhardt

I just compiled two identical program , one with "!=" and other with "^". The assembly output is identical.
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