Re: Off topic 'C' question

On Sat, Jul 29, 2000 at 09:38:33PM -0400, Mike Mascari wrote:
> I have a quick question. What is the quickest way to determine
> the next highest power of two which is greater than a given
> integer in 'C'. For example, given the number 7, I would like to
> return 8. Given the number 13, I would like to return 16, etc. Is
> there a gem to do this without shifting a bit value from 1 left
> up to a maximum of 32 (or 64) iterations? 

You could use:

pow(x, ((int)(log(x)/log(2)) + 1));

-- 
Louis-David Mitterrand - ldm@apartia.org - http://www.apartia.org

 "Poor girl looks as confused as a blind lesbian in a fish market." -
 Simon R. Green