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  1.  Home
  2. RPG400-L
  3. August 2021

Here's an interesting RPG parameter Issue

I'm sure it's something that a few of you know why it happens, but here's
the situation.


Service program A calls program B with a parameter list (using PLIST.. yes,
it's old).

Let's say the parameter list contains a string called firstName and we pass
in a value of Brad.

Now, Program B modifies that parameter value to Bradley.

Program B ends, LR is set on, all that good stuff.

Control returns to service program A and firstName is still Brad.

We call Program B again, but before we do we verify firstName is Brad.

In Program B, firstName is still Bradley.

Make sense? :)

Bradley V. Stone
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