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Re: call_external (IDL5.5) [message #29475 is a reply to message #29474]

Tue, 26 February 2002 08:58

R.Bauer
Messages: 1424
Registered: November 1998

Senior Member

James Kuyper wrote:
>
> Mark Rivers wrote:
> ...
>
>> There is one very important difference between CALL_EXTERNAL in IDL 5.5 and
>> previous versions, which has to do with how IDL strings are passed. The
>> following code is from "export.h" in IDL 5.5.
>> ********************************************
>> typedef int IDL_STRING_SLEN_T;
>> #define IDL_STRING_MAX_SLEN 2147483647
>>
>>
>> typedef struct { /* Define string descriptor */
>> IDL_STRING_SLEN_T slen; /* Length of string, 0 for null */
>> short stype; /* type of string, static or dynamic */
>> char *s; /* Addr of string */
>> } IDL_STRING;
>
> Which points out he importance of using "#include export.h" to create
> the typedef, rather than copying the typedef into your own code.

I agree to this and sure this was the main problem.

The second problem comes from this two lines.

strcpy(buf,path.s);
buf[path.slen]='\0';

I have learned that I have to do:

buf[path.slen]='\0';
strcpy(buf,path.s);

regards
Reimar

--
Reimar Bauer

Institut fuer Stratosphaerische Chemie (ICG-1)
Forschungszentrum Juelich
email: R.Bauer@fz-juelich.de
http://www.fz-juelich.de/icg/icg1/
============================================================ ======
a IDL library at ForschungsZentrum Juelich
http://www.fz-juelich.de/icg/icg1/idl_icglib/idl_lib_intro.h tml

http://www.fz-juelich.de/zb/text/publikation/juel3786.html
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[Message index]

		Re: call_external (IDL5.5) By: Craig Markwardt on Tue, 26 February 2002 10:43
		Re: call_external (IDL5.5) By: R.Bauer on Tue, 26 February 2002 08:58
		Re: call_external (IDL5.5) By: Mark Rivers on Mon, 25 February 2002 20:03
		Re: call_external (IDL5.5) By: James Kuyper on Mon, 25 February 2002 07:28
		Re: call_external (IDL5.5) By: Mark Rivers on Mon, 25 February 2002 06:56
		Re: call_external (IDL5.5) By: notspecified on Mon, 25 February 2002 05:56
		Re: call_external (IDL5.5) By: Gert Van de Wouwer on Mon, 25 February 2002 05:35
		Re: call_external (IDL5.5) By: R.Bauer on Mon, 25 February 2002 05:19
		Re: call_external (IDL5.5) By: Gert Van de Wouwer on Wed, 06 March 2002 06:42

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