[Tutor] "if n % 2 == 0" vs. "if not n % 2" compared for speed: aesthetics lose

Richard D. Moores rdmoores at gmail.com
Tue Nov 23 20:56:03 CET 2010


On Tue, Nov 23, 2010 at 10:29, R. Alan Monroe <amonroe at columbus.rr.com> wrote:
>> I've always disliked using "if not n % 2"  to test for even/odd ints
>> because of its convoluted logic. But I ran some speed tests and found
>> it was the way to go over "if n % 2 == 0".
>
> Did you try bitwise-and with 1?

What's that?

Dick


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