Re: Called routines sending values back to the calling program

When you change the value of a parameter, it'll automatically be changed in the calling program.



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Chamara Withanachchi
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-----Original Message-----
From: "lwl" <lwl@xxxxxxxxxxxxx>

Date: Tue, 17 Mar 2009 16:55:31
To: <rpg400-l@xxxxxxxxxxxx>
Subject: Called routines sending values back to the calling program


Good afternoon.



Please excuse the rudimentary level of my question but I don't have local
resources to whom I can address the question.



In an application system there are multiple requirements to generate a
random number. The data to drive the generation process is located in
several different files; the logic by which this number is generated is
closely guarded. It is for these reasons we want to create a callable
routine that returns the random number. The random number generator will be
called from at least 6 different application programs.



I understand how a programmer passes parameters to a called program but how
does a programmer structure the called program to pass a parameter back to
the calling program? And what has to be done within the calling program to
receive the parameter being passed by the called program?



TYIA





Roy Luce

Systems Plus - Midwest



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