RE: Procedure Problem

["Ron Hawkins" <hwarangron@xxxxxxxx>]

It seems to me that with a procedure to center a field, descriptors are the
only way to go. You need to be able to pass any size character field. You
would not want to center a numeric field, nor a constant, only character
fields. So you only have to get the size of a character field. The user
should not have to pass the size of the field.

-----Original Message-----
From: owner-rpg400-l@midrange.com [mailto:owner-rpg400-l@midrange.com]On
Behalf Of Jon.Paris@halinfo.it
Sent: Thursday, December 23, 1999 10:23 AM
To: RPG400-L@midrange.com
Subject: RE: Procedure Problem





When I re-read this I remembered why I leant in this direction.  Unless you
are
asking the programmer to only receive the centered result into the original
input field or into a field of identical size (both of which require the
kind of
knowledge of the routine that you are trying to avoid) you cannot use an
Eval'd
function for a generic centering routine unless a) you have one routine for
each
possible length of output field - again requiring knowledge or b) Use CallP
and
pass the output field as a parameter and use descriptors to work out how
long it
is.

The original example used Eval and so I went with that direction.


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