comp.lang.idl-pvwave archive: archive » Re: Storing !NULL in struct

Home » Public Forums » archive » Re: Storing !NULL in struct

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: Storing !NULL in struct [message #83525]

Wed, 13 March 2013 07:46

Michael Galloy
Messages: 1114
Registered: April 2006

Senior Member

On 3/13/13 2:17 am, Tom Grydeland wrote:
> And it would be useful _to me_ if I could put a !NULL in a struct.
> I'm using the struct for UVALUEs in widgets, and it would be nice if
> they allowed _any_ well-defined IDL value.

But !null is undefined:

IDL> help, !null
<Expression> UNDEFINED = !NULL
IDL> print, size(!null, /type)
0

Mike
--
Michael Galloy
www.michaelgalloy.com
Modern IDL: A Guide to IDL Programming (http://modernidl.idldev.com)
Research Mathematician
Tech-X Corporation

Report message to a moderator

[Message index]

		Re: Storing !NULL in struct By: Michael Galloy on Wed, 13 March 2013 07:46
		Re: Storing !NULL in struct By: tom.grydeland on Wed, 13 March 2013 01:17
		Re: Storing !NULL in struct By: Bob[4] on Tue, 12 March 2013 11:15
		Re: Storing !NULL in struct By: tom.grydeland on Fri, 15 March 2013 01:10

Previous Topic:	Findind NANs in unformatted image data
Next Topic:	Re: Annular Zernike polynomials

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sun Nov 30 11:58:45 PST 2025

Total time taken to generate the page: 1.60370 seconds