RE: Overloading in RPG.

[bill.reger@xxxxxxxxxxxxx]

I have been following this "overloading" thread and find that I am a bit
ambivalent about whether I think this is a good thing or not.

On the one hand, I have always disliked modules that performed different
logic based on input parameters.  To me this is a module in need of some
further splitting up into more modules.  A module that does two things can
easily be split into two modules, with a third module that executes one or
the other of them.  Using Brad's "GetCustAddress" example, we could instead
build:

     "GetCustAdrByCust#"
     "GetCustAdrByLName"

     and finally

     "GetCustAddress"      (executes one or the other of the other two
modules)

I have always argued that this level of decomposition gives the programmer
the same freedom to use "GetCustAddress" but also allows them to use the
sub-modules when requirements dictate.

On the other hand, if RPG had "overloading", then I would not have to build
the third module since the RPG compiler would handle the function of
determining which of the first two modules I wish to execute.

Bill


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