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I'm assuming the caller is also RPGLE (rather than something like a Db2 stored procedure).
By default parameters are read/write. You can specify CONST or VALUE on your prototype to make them read-only. The difference between CONST and VALUE being whether the local variable can be modified, but in either case the caller variable is not changed.
You can only return a single return value (I often return a data structure when I need multiple values). You declare the return type on the prototype:
Dcl-pr myProcdure int(10);
This will return an interger value.
HTH
________________________________
From: Booth Martin <booth@xxxxxxxxxxxx>
Sent: Saturday, September 15, 2018 9:14 PM
To: RPG programming on the IBM i / System i
Subject: in & out parameters in RPGLE
This seems straight forward but is it? The RPG world has gone places I
never imagined.
I want to use PR/PI for the parameter(s) needed as input for a program,
right?
But what about the return parameter(s)?
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