Re: Reading Pipe - ASCII -> EBCDIC Conversion -- RPG400-L

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Barbara,

As I understand it, if the variable passed has the same length/type as the
parameter definition, the address of the variable is passed directly; if it
has a different type or length, it's copied into a temporary variable, whose
address is passed to the procedure.

If oneIn the second case, I assume that if the called procedure *were* to
change the parameter, since it would only affect the temporary variable, it
wouldn't be a problem, whereas in the first case, it *could* affect the
variable in the calling program. Is this correct?

A low-level question then: In the second case (using a temporary variable),
is the storage for that variable freed immediately after the procedure has
returned control or what?

Rory

On Thu, Jul 22, 2010 at 7:22 AM, Barbara Morris <bmorris@xxxxxxxxxx> wrote:

* const: a pointer passed by reference. The called procedure is not
expected to change the parameter. Coding CONST is a promise from the
RPG programmer to the RPG compiler that the called procedure will not
change the parameter. If the called procedure is an RPG procedure, the
RPG compiler will enforce this.

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