RE: Subroutines vs Subprocedures was RE: Indicators

["Lim Hock-Chai" <Lim.Hock-Chai@xxxxxxxx>]

I don't see any problem accessing or updating global variables within a 
sub-procedure.  Actually there are a lot of languages that do not even have a 
equivalent of RPG sub-routine.  It all depend on design.  Normally, I try to 
name my proc very specific to a task that it execute.

I don't see a problem creating a sub-Proc call updLstChgInfo() that update some 
global last change info fields.
Much like java's setter method.  Of course, java programmer normally create a 
setter for each variable.

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx]On Behalf Of Joe Lee


Sub-procedures are great for many things, such as when you have a
function that you want to be able to apply to multiple different input
values. You could of course do this with a sub-routine by moving the
value into a temporary variable, executing the routine, and then moving
the value back, but this is ugly. However they should be limited to
situations where they don't need access to global variables, if you need
the data you must pass it in. 

Joe Lee