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Re: counting bits [message #34102 is a reply to message #34099]

Mon, 17 February 2003 21:09

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Craig Markwardt (craigmnet@cow.physics.wisc.edu) writes:

> Very wicked!
>
> Okay, here's a problem I've always solved by the brute force method:
>
> * what is the lowest / highest bit position set in an integer?
>
> For example, a the lowest bit position in the binary number 11010100
> is 2 (bit positions are labeled starting with 0 of course). The brute
> force method involves testing each bit in succession using something
> like (VALUE AND 2L^I) for each I, until a set bit is found.

You two guys really have to get a life. Are either
of you two married?

Cheers,

David

--
David W. Fanning, Ph.D.
Fanning Software Consulting, Inc.
Phone: 970-221-0438, E-mail: david@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
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[Message index]

		Re: counting bits By: Craig Markwardt on Wed, 19 February 2003 21:31
		Re: counting bits By: Dick Jackson on Wed, 19 February 2003 07:47
		Re: counting bits By: Craig Markwardt on Tue, 18 February 2003 15:10
		Re: counting bits By: JD Smith on Tue, 18 February 2003 14:58
		Re: counting bits By: David Fanning on Tue, 18 February 2003 13:55
		Re: counting bits By: Rick Towler on Tue, 18 February 2003 13:27
		Re: counting bits By: JD Smith on Tue, 18 February 2003 11:56
		Re: counting bits By: eddie haskell on Tue, 18 February 2003 08:10
		Re: counting bits By: David Fanning on Mon, 17 February 2003 21:09
		Re: counting bits By: Craig Markwardt on Mon, 17 February 2003 20:45
		Re: counting bits By: JD Smith on Mon, 17 February 2003 15:54
		Re: counting bits By: David Fanning on Mon, 17 February 2003 12:41
		Re: counting bits By: David Fanning on Mon, 17 February 2003 12:38
		Re: counting bits By: JD Smith on Thu, 20 February 2003 07:43
		Re: counting bits By: JD Smith on Thu, 20 February 2003 07:24

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