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Re: assignment inside boolean expression [message #20601 is a reply to message #20593]

Tue, 11 July 2000 00:00

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

Ben Tupper <tupper@seadas.bigelow.org> writes:
> "Liam E.Gumley" wrote:
>
>>
>> Recall that in IDL, integers with odd non-zero values are Boolean
>> 'True'. Beware of floats and doubles though, where any non-zero value is
>> Boolean 'True'.
>>
>
> Dang!
>
> I just spent an hour figuring out an efficient way of determining if an
> integer is odd!
>
> I have an IDL function ISODD() for sale... very cheap. No reasonable
> offer refused.

Not to undercut you, but will (X AND 1) do the trick?

Craig

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Craig B. Markwardt, Ph.D. EMAIL: craigmnet@cow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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[Message index]

		Re: assignment inside boolean expression By: Jeffrey Jones on Tue, 11 July 2000 00:00
		Re: assignment inside boolean expression By: Ben Tupper on Tue, 11 July 2000 00:00
		Re: assignment inside boolean expression By: promashkin on Tue, 11 July 2000 00:00
		Re: assignment inside boolean expression By: Craig Markwardt on Tue, 11 July 2000 00:00
		Re: assignment inside boolean expression By: K. Bowman on Tue, 11 July 2000 00:00
		Re: assignment inside boolean expression By: Ben Tupper on Tue, 11 July 2000 00:00
		Re: assignment inside boolean expression By: promashkin on Mon, 10 July 2000 00:00
		Re: assignment inside boolean expression By: Liam E. Gumley on Mon, 10 July 2000 00:00
		Re: assignment inside boolean expression By: Liam E. Gumley on Mon, 10 July 2000 00:00

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