If you're going to write a procedure to calculate State Taxes, why not make it file driven. The file could be indexed by location (IE State, or State & City, or at worst by Zip Code) with and local, Township, County, and State tax calculations defined.
-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Briggs, Trevor (TBriggs2)
Sent: Monday, August 06, 2012 10:47 AM
To: RPG programming on the IBM i / System i
Subject: RE: Callp question
Having had a little experience calculating state taxes, for me this would be the latter. There are differences in state's tax calculations and they change. If NY changed their calculation method, would I really want to re-test the procedure for every other state that has a state tax too to make sure I hadn't broken it?
Trevor Briggs
Analyst/Programmer
Lincare, Inc.
(727) 431-1246
TBriggs2@xxxxxxxxxxx
-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Alan Shore
Sent: Monday, August 06, 2012 10:39 AM
To: RPG programming on the IBM i / System i
Subject: RE: Callp question
Hmm - I would think it's how one defines "doing one thing only".
Which do you consider "doing one thing only" - Calculating state taxes where the state code is an input parameter, Callp Statetaxes(NY); Or is "doing one thing only" - calculating state taxes for NY Callp StatetaxesNY;
Interesting thought
Alan Shore
Programmer/Analyst, Direct Response
E:AShore@xxxxxxxx
P:(631) 200-5019
C:(631) 880-8640
"If you're going through Hell, keep going" - Winston Churchill
-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Briggs, Trevor
(TBriggs2)
Sent: Monday, August 06, 2012 10:23 AM
To: RPG programming on the IBM i / System i
Subject: RE: Callp question
Call me idealistic, but I believe the intent of a procedure is to do one thing only. The purpose of parameters is to supply values upon which the procedure operates, not to specify a switch which alters the function performed.
On the other hand, I well know that creating four procedures where one will do can also multiply the overhead of documentation, especially if you use change management software.
I think the deciding factor would be how much difference there was between the functions, which if your three procedures are all calling the same procedure anyway would seem to be small.
Trevor Briggs
Analyst/Programmer
Lincare, Inc.
(727) 431-1246
TBriggs2@xxxxxxxxxxx
-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Dave
Sent: Monday, August 06, 2012 7:49 AM
To: RPG programming on the IBM i / System i
Subject: Callp question
Hi,
I'm being asked to do this :
DoStuffThisWay ();
DoStuffTheOtherWay ();
DoStuffTheOldWay()
Instead of having : DoStuff (wayToDoStuff); So that the caller does not care about the parameter.
Then, in the module containing my 3 procedures :
P DoStuffThisWay
DoStuff(1);
DoStuffTheOtherWay
DoStuff(2);
Etc.
Obviously,this means maintaining more procedures and duplicating code.
I was wondering about procedure pointers. Could that help? How? Any other ideas?
Thanks.
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