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Re: IDL Memory Leaks [message #27836 is a reply to message #27679]

Tue, 06 November 2001 10:16

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

JD Smith (jdsmith@astro.cornell.edu) writes:

> Correction, kindly pointed out by an RSI developer... the feature
> introduced to put a halt to David's perverse misuse of base widgets was
> *handles*, not pointers. Interestingly, he also filled me in that
> handles in fact *were* base widgets internally, stripped of everything
> by the uvalue. I had obviously attempted to elide those from my memory,
> and not without due cause. Let's hope we remember handles only as a
> curious side-excursion in IDL history, and insist on pointers in all our
> code.

While we are getting a history lesson, I'll just
point out that using unrealized base widgets as pointers,
handles, or whatever, was not my idea. Like most of my
really good ideas, I stole this one from someone smarter
than me, Josh Goldstein, who was one of the best IDL programmers
I ever saw. He could write IDL code faster than I could think!

I admit that I publicized this perverse idea,
but only because I found it useful for building
weird data sets and I found the notion of "pointers"
helpful in flogging IDL programming courses.

I still run into an occasional program that uses
unrealized base widgets in this way. And I'm
happy to say those programs still run. :-)

Cheers,

David

--
David W. Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438, E-mail: david@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155

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[Message index]

		IDL Memory Leaks By: Myron Brown on Mon, 05 November 2001 09:53
		Re: IDL Memory Leaks By: Stein Vidar Hagfors H[1] on Tue, 06 November 2001 13:21
		Re: IDL Memory Leaks By: David Fanning on Tue, 06 November 2001 10:16
		Re: IDL Memory Leaks By: David Fanning on Tue, 06 November 2001 06:57
		Re: IDL Memory Leaks By: R.Bauer on Tue, 06 November 2001 02:33
		Re: IDL Memory Leaks By: alt on Mon, 05 November 2001 22:15
		Re: IDL Memory Leaks By: David Fanning on Mon, 05 November 2001 17:14
		Re: IDL Memory Leaks By: John-David T. Smith on Mon, 05 November 2001 14:53
		Re: IDL Memory Leaks By: David Fanning on Mon, 05 November 2001 14:35

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