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Re: Problems with IDL call_external to C shared object [message #21984]

Fri, 13 October 2000 00:00

Nigel Wade
Messages: 286
Registered: March 1998

Senior Member

Mark Rivers wrote:
>
> I've done a lot of this, and it's not that hard, don't give up!
>
> Here are some tricks:
>
> - All arrays which need to be passed between IDL and C must be allocated in
> IDL, as J.D. Smith said. This includes both arrays being passed from IDL to
> C and from C back to IDL. Sometimes this requires an initial call to the C
> code to return the array sizes which IDL will allocate, if the array sizes
> are not known to IDL beforehand.
>

Alternatively, you can use the LINKIMAGE or DLM interface where the C
code
can create any IDL variable required. Albeit at the expense of a greater
learning curve.

--
-----------------------------------------------------------
Nigel Wade, System Administrator, Space Plasma Physics Group,
University of Leicester, Leicester, LE1 7RH, UK
E-mail : nmw@ion.le.ac.uk
Phone : +44 (0)116 2523568, Fax : +44 (0)116 2523555

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[Message index]

		Re: Problems with IDL call_external to C shared object By: Nigel Wade on Fri, 13 October 2000 00:00
		Re: Problems with IDL call_external to C shared object By: Mark Rivers on Thu, 12 October 2000 00:00
		Re: Problems with IDL call_external to C shared object By: John-David T. Smith on Thu, 12 October 2000 00:00

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