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Re: Defining Integer Field in a Structure [message #27735 is a reply to message #27732]

Thu, 01 November 2001 13:24

John-David T. Smith is currently offline

John-David T. Smith
Messages: 384
Registered: January 2000

Senior Member

Brian Bell wrote:
>
> Is there a way to define a field within a structure whose type is
> integer? In my case, I want the field to be any integer from 0 to 4.
> I know you can assign an actual integer to the field, but I don't want
> to do this because I want the field value to change within certain
> procedures and to return that value to the procedures calling it. I
> would appreciate any help you might be able to offer.
>

This is illegal:

IDL> a={0:"this", 1:"is",2:"a",3:"funny",4:"test"}

so the short answer is no. However, if you just want 4 numbered
"slots", try an array:

IDL> a={vals:['this','is','a','funny','test']}
IDL> print,a.vals[1]
is

if you'd like the types of each slot to be different, try at a pointer
array. If you'd like the number of "slots" to be variable, try a
pointer to a pointer array.

JD

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[Message index]

		Re: Defining Integer Field in a Structure By: Logan Lindquist on Fri, 02 November 2001 12:06
		Re: Defining Integer Field in a Structure By: Craig Markwardt on Thu, 01 November 2001 15:36
		Re: Defining Integer Field in a Structure By: David Fanning on Thu, 01 November 2001 14:58
		Re: Defining Integer Field in a Structure By: Pavel A. Romashkin on Thu, 01 November 2001 14:27
		Re: Defining Integer Field in a Structure By: David Fanning on Thu, 01 November 2001 14:05
		Re: Defining Integer Field in a Structure By: John-David T. Smith on Thu, 01 November 2001 13:24
		Re: Defining Integer Field in a Structure By: Harvey Rarback on Tue, 06 November 2001 17:02

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