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Re: Returning A Variable Length struct to IDL from C [message #27840 is a reply to message #27675]

Tue, 06 November 2001 08:27

Richard Younger
Messages: 43
Registered: November 2000

Member

Nigel Wade wrote:
>
> Really?. I run code which calls IDL_ImportArray many 1000s of times
> within a session, all with malloc'd data and have not had any
> problems.
>
> Why do you think it can only be used once per session, with static
> data?

It could be that IDL handles malloc() and free() just fine, but not
new[] and delete[], which is what K. seems to be using (though I'm not
sure about delete[]). I am not at all familiar with how new[] is
implemented, but it could use malloc() or include garbage collection, or
be radically different. From what I remember, I don't think it's in the
C++ spec and so would depend on your compiler.

> No, no, no! You're missing the entire purpose of DLMs.
> It's the realm of DLMs to do those things which are too complicated to do
> in IDL. ;-)

Well, complicated DLM's are part of the fun, but I think Craig's point
is that it's a little easier to manipulate IDL structures in, um, IDL.
;-) Though that code you posted should give anyone a good head start on
passing structures with arrays of strings.

Best,
Rich

--
Richard Younger

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[Message index]

		Returning A Variable Length struct to IDL from C By: K Banerjee on Mon, 05 November 2001 11:05
		Re: Returning A Variable Length struct to IDL from C By: Nigel Wade on Wed, 07 November 2001 02:00
		Re: Returning A Variable Length struct to IDL from C By: Craig Markwardt on Tue, 06 November 2001 08:28
		Re: Returning A Variable Length struct to IDL from C By: Richard Younger on Tue, 06 November 2001 08:27
		Re: Returning A Variable Length struct to IDL from C By: Richard Younger on Tue, 06 November 2001 07:58
		Re: Returning A Variable Length struct to IDL from C By: Nigel Wade on Tue, 06 November 2001 05:36
		Re: Returning A Variable Length struct to IDL from C By: Nigel Wade on Tue, 06 November 2001 04:22
		Re: Returning A Variable Length struct to IDL from C By: Craig Markwardt on Mon, 05 November 2001 18:16

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