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Re: printing an array from pointers [message #48181 is a reply to message #48125]

Wed, 29 March 2006 08:43

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Paul Van Delst writes:

> No "etc" allowed:
>
> IDL> a=4
> IDL> b=7
> IDL> t = [a, b]
> IDL> help, t
> T INT = Array[2]
> IDL> t = [ [a], [b] ]
> IDL> help, t
> T INT = Array[1, 2]
> IDL> t = [ [[a]], [[b]] ]
> IDL> help, t
> T INT = Array[1, 1, 2]
> IDL> t = [ [[[a]]], [[[b]]] ]
>
> t = [ [[[a]]], [[[b]]] ]
> ^
> % Only three levels of variable concatenation are allowed.
>
>
> I've always found this behaviour confusing. Why special case for only three levels?

Oh... because it's IDL, that's why. :-)

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/

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[Message index]

		printing an array from pointers By: bressert@gmail.com on Tue, 28 March 2006 00:12
		Re: printing an array from pointers By: David Fanning on Wed, 29 March 2006 08:43
		Re: printing an array from pointers By: Paul Van Delst[1] on Wed, 29 March 2006 08:29
		Re: printing an array from pointers By: David Fanning on Wed, 29 March 2006 08:14
		Re: printing an array from pointers By: Paul Van Delst[1] on Wed, 29 March 2006 08:06

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