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Re: User selectable lower array bound? [message #26156 is a reply to message #25981] Tue, 07 August 2001 10:21 Go to previous messageGo to previous message
Craig Markwardt is currently offline  Craig Markwardt
Messages: 1869
Registered: November 1996
Senior Member
JD Smith <jdsmith@astro.cornell.edu> writes:
> The most annoying thing about IDL arrays to me is the need always to
> test whether they exist or not when concatenating onto them. The idea
> of extending arrays in both directions would be neatly summed up by
> allowing:
>
> a=[b,a] & a=[a,b] even if a doesn't (yet) exist.
>
> Either that, or IDL needs a list type which allows such operations.
> Wasn't that just me ranting about special case functionality leading to
> inconsistency?

Hmmm, agreed. I think WMC's and my proposal was for a "null" data
type which was essentially an empty list.

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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