RE: AW: Overloaded UDF

["Dennis Lovelady" <iseries@xxxxxxxxxxxx>]

> Nope. Depends on the language implementation so RPG, MI Assembler, and
> C can have optional parameters although they provide different
> mechanisms for determining how many parameters were passed. CL cannot
> although CLLE can but there is no direct language support for
> determining the number of parameters passed. COBOL can accept optional
> parameters but provides no way to determine how many were passed.

I have a number of CL (not CLLE) programs that accept up to N parameters,
but to which I pass less than N under certain circumstances.  The program
can determine whether "more" parameters are needed by the values in the
supplied data.  I don't recommend this approach because the maintainer can
be easily confused, but I can say that it does work.

Also, a MONMSG MCH3601 (I think it is) will handle the case where an
unpassed parameter is referenced.  Though that's a significant hit on
performance and joblog size.  Don't do it.  (But you can, and that's the
point I wanted to make.)

Regards,
Dennis Lovelady
http://www.linkedin.com/in/dennislovelady
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