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Re: _STRICT_EXTRA keyword [message #29910 is a reply to message #29821]

Fri, 22 March 2002 12:01

JD Smith
Messages: 850
Registered: December 1999

Senior Member

Ben Tupper wrote:
>
> On Fri, 22 Mar 2002 10:22:25 -0700, David Fanning <david@dfanning.com>
> wrote:
>> Mark Hadfield mentioned a "_STRICT_EXTRA" keyword that
>> is available in IDL 5.5 the other day. I have reason
>> to think this may be what I am looking for, but I can't
>> seem to find it in the ... uh ... IDL 5.5 documentation. :-(
>>
>
> Hi,
>
> While the topic of *_Extra has surfaced... a while back there was an
> informative discussion here about the subtlies of _EXTRA and
> _REF_EXTRA. Was there ever a 'tutorial' ala the Rebin/Refom tutorial
> pulled together? I get an awful lot out of those.
>
> I ask because this has been a slippery subject for me. Everytime I
> build an object that inherits another, I fiddle-faddle with the
> inherited keywords with my fingers crossed until these keywords are
> properly passed along.
>
> The last time I did this (with the xGrid_Data object) I got so
> knotted-up that in the end I decided to simply copy *every* keyword
> for the superclass (Grid_Data object) into the INIT of the subclass
> object. It cut the knot, but it kinda hangs out there like an
> untucked shirt (and I hope no one notices.)
>
> Now this _Strict_Extra keyword... well, as Pooh might say, "Oh,
> bother!"
>

Ben,

You may find this bit I wrote up interesting. Too much detail for a
tutorial, but it gives you the basic ideas, and even touches on
_STRICT_EXTRA (bother indeed). I may repurpose this as a tutorial if
enough people bug me.

http://groups.google.com/groups?selm=3BE2FCDF.6A63C4C9%40ast ro.cornell.edu

JD

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[Message index]

		_STRICT_EXTRA keyword By: David Fanning on Fri, 22 March 2002 09:22
		Re: _STRICT_EXTRA keyword By: btupper on Mon, 25 March 2002 06:23
		Re: _STRICT_EXTRA keyword By: David Fanning on Fri, 22 March 2002 22:21
		Re: _STRICT_EXTRA keyword By: A. D. & J.C. Cool on Fri, 22 March 2002 18:22
		Re: _STRICT_EXTRA keyword By: JD Smith on Fri, 22 March 2002 12:01
		Re: _STRICT_EXTRA keyword By: btupper on Fri, 22 March 2002 10:29
		Re: _STRICT_EXTRA keyword By: David Fanning on Fri, 22 March 2002 10:04
		Re: _STRICT_EXTRA keyword By: Malcolm Walters on Fri, 22 March 2002 09:28

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