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From: Terry Reedy <tjreedy@udel.edu>
Subject: Re: Bitshifts and "And" vs Floor-division and Modular
Date: Thu, 06 Sep 2012 21:53:56 -0400
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On 9/6/2012 8:01 PM, jimbo1qaz wrote:
> Is it faster to use bitshifts or floor division? And which is better,
> & or %? All divisors and mods are power of 2, so are binary
> operations faster? And are they considered bad style?

Yes, meaningless, yes, and no.
I would do what seems sensible to you in the context.

-- 
Terry Jan Reedy