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Re: yet another idl memory question [message #66788 is a reply to message #66699]

Mon, 08 June 2009 12:05

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Paolo writes:

>> Of course, data=3D0B doesn't free *all* the memory,
>> and doing this many times leads, I suspect, to the memory
>> fragmentation that is the heart of the problem. I suggest
>> you use UNDEFINE. That really does release *all* the memory
>> associated with a variable.
>
> Really? Certainly it's not a substitute for ptr_free, is it?
> At least not in my system:

Well, I think you are confusing "variable", which is what
I claim, with "pointer to a variable", which I admit UNDEFINE
doesn't free. (I think it was written *before* pointers, to
tell you the truth!)

But in any case, easily fixed. Just test to see if the
variable is a pointer or object, destroy it if so, and
carry on undefining the variable.

Maybe I'll get around to it later today. :-)

Cheers,

David
--
David Fanning, Ph.D.
Coyote's Guide to IDL Programming (www.dfanning.com)
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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[Message index]

		yet another idl memory question By: jw2519 on Thu, 04 June 2009 08:53
		Re: yet another idl memory question By: pgrigis on Wed, 10 June 2009 15:01
		Re: yet another idl memory question By: David Fanning on Wed, 10 June 2009 14:15
		Re: yet another idl memory question By: JDS on Mon, 15 June 2009 11:57
		Re: yet another idl memory question By: David Fanning on Mon, 08 June 2009 13:09
		Re: yet another idl memory question By: pgrigis on Mon, 08 June 2009 12:57
		Re: yet another idl memory question By: ben.bighair on Mon, 15 June 2009 12:07
		Re: yet another idl memory question By: pgrigis on Mon, 08 June 2009 12:56
		Re: yet another idl memory question By: David Fanning on Mon, 08 June 2009 12:05

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