Re: Benefits of Sub-procedures

[rob@xxxxxxxxx]

And that's a good way to evolve.

Stop using subroutines, no matter how simple.  And use subprocedures 
instead.  While the subroutine may be too simplistic to make sense to 
bother with the PR's and PI's it's a good discipline to stick to it as a 
"Commandment from God" for two to three months just to get into practice. 
And then, only then, go back to using subroutines when it's really 
simplistic.  Or you have some special need like having RETURN exit the 
program and not just the subprocedure.  (There are those who feel that 
exiting a program from a subroutine is a violation of structured 
programming and is punishable by (your humorous situation here)).

Then as you evolve you can decide which subprocedures might make sense to 
move to a service program.

Rob Berendt
-- 
"They that can give up essential liberty to obtain a little temporary 
safety deserve neither liberty nor safety." 
Benjamin Franklin 




Ken Sims <mr3111@xxxxxxxxx> 
Sent by: rpg400-l-bounces@xxxxxxxxxxxx
10/23/2003 03:28 PM
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Re: Benefits of Sub-procedures






Hi Booth -

>Callable programs, RPGIV, %BIFS, and all of the other neat stuff can be 
>picked up a
>little at a time and brought into a shop but not sub-procedures. However,
>one must cross the sub procedures canyon in one giant step.

That's not true.  Procedures are not limited to service programs and bound 

modules.

You can write non-exported procedures in the same source as the main 
program such that you get all of the prototyping, return value, 
expressions 
as parameters, etc. benefits.  What you don't get is the ability to call 
that procedure from another program.

I started out this way, using what I call "internal procedures", well 
before I wrote my first service program.

Ken
http://www.ke9nr.net/
Opinions expressed are my own and do not necessarily represent the views 
of 
my employer or anyone in their right mind.

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