Using *OMIT & *NOPASS

Folks:

I've got a bit of a quandary... We've been writing a number procedures that
have a variable number of parameters.

These procedures, in turn, call other procedures that also have a variable
number of parameters.  The two procedures have very similar (if not
identical) parameter lists ... but the called parameter might call a
different procedure based on a control file.

I made the erroneous conclusion that if a parameter was not passed, it's
address would be set to *NULL (similar to passing *OMIT).

So, the question is ... what is the best way to handle possibility unpassed
parameters without having to code a complex structure of "if %parms > 2,
call w/ 3 params, if %parms > 3, call w/ 4 params", etc?

Here's a quick pseudocode of what we are doing...

Program Z

callp x(a,b)

end pgm z

Proc X (a, b *nopass, c *nopass)

if control file say one thing
        return Y (a,b,c)
else
        return W (a,b,c)
endif

end proc X

Proc Y (a, b *nopass, c *nopass)

do stuff

end proc Y

Proc W (a, b *nopass, c *nopass)

do other stuff

end proc Y


david

--
David Gibbs
Sr. Software Engineer
MKS, Inc.
2500 S. Highland Ave, Suite 200
Lombard, IL  60148
(630) 495-2108 x5004

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