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Re: Unsupported keyword on older IDL version [message #31646 is a reply to message #31636]

Mon, 29 July 2002 08:34

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Craig Markwardt (craigmnet@cow.physics.wisc.edu) writes:

> Another possibility is to use the _EXTRA mechanism:
>
> ;; Assume EXTRA is undefined
> if double(!version.release) GE 5.4 then $
> extra = {utc: 1}
> value = systime(_EXTRA=extra)
>
> Anyway you cut it, you will need an IDL version check.

I think this might depend on how old a version of IDL
you were calling. I don't think _Extra always failed
gracefully in the early days, when routines were passed
a keyword they didn't understand.

On the other hand, this does have the advantage of
running in a run-time version of IDL, whereas the
CALL_FUNCTION approach would fail.

Cheers,

David

--
David W. Fanning, Ph.D.
Fanning Software Consulting, Inc.
Phone: 970-221-0438, E-mail: david@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
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[Message index]

		Re: Unsupported keyword on older IDL version By: Paul Hick on Mon, 29 July 2002 20:30
		Re: Unsupported keyword on older IDL version By: David Fanning on Mon, 29 July 2002 20:21
		Re: Unsupported keyword on older IDL version By: Paul Hick on Mon, 29 July 2002 19:41
		Re: Unsupported keyword on older IDL version By: JD Smith on Mon, 29 July 2002 13:17
		Re: Unsupported keyword on older IDL version By: David Fanning on Mon, 29 July 2002 13:35
		Re: Unsupported keyword on older IDL version By: David Fanning on Mon, 29 July 2002 08:34
		Re: Unsupported keyword on older IDL version By: Craig Markwardt on Mon, 29 July 2002 08:14
		Re: Unsupported keyword on older IDL version By: thompson on Mon, 29 July 2002 07:40

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