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Re: CALL_EXTERNAL in Linux Fedore Core2??? [message #40929 is a reply to message #40917]

Wed, 08 September 2004 04:46

Bob[2]
Messages: 5
Registered: June 2004

Junior Member

David Grier's remarks are good.

Also: You are including idl_export.h, so it would also be wise to use
IDL_INT for the return type of your 'test' procedure in C -- after you
rename the procedure to something less troublesome, like 'braintest'.
Then in the call_external, you will want to set /IVALUE. I think you
might not have seen these errors yet, since IDL did not find the right
shared object and did not find the symbol.

Also, look through the messages in the list, if you haven't already done
so. There have been several about call_external.

- Bob

umesh wrote:
> Hi!
>
> I am trying to call a simple C program (test.c) from a IDL program using
> CALL_EXTERNAL. The C program is,
>
> #include <stdio.h>
>
> #include <math.h>
>
> #include"/usr/local/rsi/idl_6.0/external/include/idl_export.h "
>
> float Scale;
> int test(int argc, char *argv[])

> xx=CALL_EXTERNAL('/home/upadiga/work/IDLwork/test', $
> '/home/upadiga/work/IDLwork/test', $
> sc)

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[Message index]

		Re: CALL_EXTERNAL in Linux Fedore Core2??? By: umesh on Wed, 08 September 2004 14:13
		Re: CALL_EXTERNAL in Linux Fedore Core2??? By: Bob[2] on Wed, 08 September 2004 04:46
		Re: CALL_EXTERNAL in Linux Fedore Core2??? By: David G. Grier on Tue, 07 September 2004 20:58

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