RE: Todays WTF -- RPG400-L

Aaron,

Why would you want to mix procedures and mainline subroutines in one
module (other than *InzSR or *PSSR). If you're going to tuck away code
somewhere, why not make it accessible by prototypes (since prototypes
can't call subRs outside of its scope)?

Kurt Anderson
Application Developer
Highsmith Inc

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of albartell
Sent: Friday, August 10, 2007 11:28 AM
To: 'RPG programming on the AS400 / iSeries'
Subject: RE: Todays WTF

For the record, and to repeat what I said in my previous email more or
less, I agree with your refined statement of sub routine usage. I
pretty much only use them when I DON'T need local variables and instead
the code uses entirely global variables. With that said I only use
global variables when it makes sense.

Now, if sub procedures became entirely free format and didn't require a
prototype I would probably use them as a complete replacement for sub
routines.

Thanks for expanding on your reasoning,
Aaron Bartell
http://mowyourlawn.com

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx]
On Behalf Of Steve Richter
Sent: Friday, August 10, 2007 11:20 AM
To: RPG programming on the AS400 / iSeries
Subject: Re: Todays WTF

On 8/10/07, albartell <albartell@xxxxxxxxx> wrote:

I agree with your definition of how sub procs helped your situation
and that is the same approach that I took. That still doesn't address

your original comment of putting sub routines with the likes of
GOTO's, but if your re-definition below serves as a sort of retract to

say sub routines can SOMETIMES be beneficial then I will just drop my

challenge.

Aaron,

complexity = a lot of details. details are details, no matter the
origin.
When you are reading code that contains a GOTO, the unimplied return
point of the GOTO is one more detail you have to keep track of.
When the subrtn uses a global variable that is assigned to in one
routine and then used as input 3 routines down the call stack, that is
another detail. The end result, is a pile of details that unnecessarily
bog down your work.

-Steve
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