What is right, indeed... Depends on what you are trying to do. Please read 2's compleent. If you are doing ordinary arithmetic, then what you are doing is probably what you want. If you are doing something like calculating a TCP checksum, then the other method is closer to (but not exactly) what you want.

In reply to Re: Negating a number by Illuminatus
in thread Negating a number by flamey

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