comp.lang.idl-pvwave archive: archive » passing functions as arguments in IDL?

Home » Public Forums » archive » passing functions as arguments in IDL?

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

Re: passing functions as arguments in IDL? [message #19258 is a reply to message #18725]

Tue, 29 February 2000 00:00

Benno Puetz
Messages: 16
Registered: March 2000

Junior Member

David Fanning wrote:

> Rick Baer (baer@hpl.hp.com) writes:
>
>> Is there any way to pass functions as arguments in IDL? I would
>> like to be able to do something like this:
>> ...
>> IDL> print, tf1, f1, 4
>
> You can do this:
>
> function f1, x
> return, x*x
> end
>
> function tf1, func, arg
> IF Size(func, /Type) NE 7 THEN BEGIN
> Print, 'String argument required'
> RETURN, -1
> ENDIF
> retVal = Call_Function(func, arg)
> return, retVal
> end
>
> IDL> print, tf1('f1', 4)
>
> Cheers,
>
> David
> --

Would it also be possible to pass argument lists of variable length,
depending on the function to be called?

I've tried the _EXTRA keyword but to no avail ...

--
Benno Puetz
Kernspintomographie
Max-Planck-Institut f. Psychiatrie Tel.: +49-89-30622-413
Kraepelinstr. 10 Fax : +49-89-30622-520
80804 Muenchen, Germany

Report message to a moderator

[Message index]

		passing functions as arguments in IDL? By: Rick Baer on Tue, 01 February 2000 00:00
		Re: passing functions as arguments in IDL? By: Martin Schultz on Tue, 29 February 2000 00:00
		Re: passing functions as arguments in IDL? By: davidf on Tue, 29 February 2000 00:00
		Re: passing functions as arguments in IDL? By: Benno Puetz on Tue, 29 February 2000 00:00

Previous Topic:	Output to dxf?
Next Topic:	point_lun

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Fri Oct 10 03:56:48 PDT 2025

Total time taken to generate the page: 0.16009 seconds