Re: MAIN or cycleless programs.

[Jeff Young <cooljeff913@xxxxxxxxx>]

Just curious, but if your proceedure needed a variable that had been defined 
globaly and was not changing it, why would you not use the global value instead 
of passing it.

Also, if you *wanted* your proceedure to update a global variable, why not just 
use it instead of passing it as a parm?

Thanks,
 
Jeff Young 
Sr. Programmer Analyst
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________________________________
From: Vern Hamberg <vhamberg@xxxxxxxxxxx>
To: RPG programming on the IBM i / System i <rpg400-l@xxxxxxxxxxxx>
Sent: Fri, November 5, 2010 1:03:36 PM
Subject: Re: MAIN or cycleless programs.

David

So far as I know, anything you declare outside of any procedures is 
global - put them at the top, ahead of everything else.

But not having done this, I could be mistaken.

Of course, some, including me, would say NOT to use global variables. 
Use parameters - that's what procedures are for. Declare what you need 
at the earliest opportunity, then pass it to your various procedures.

I think some stuff still needs to be global - I don't remember what I've 
run into, but something recently.

Vern

On 11/5/2010 8:39 AM, David FOXWELL wrote:
> Hi,
>
> I've just done my first program using the MAIN keyword. I have to admit that I 
> didn't see any benefit from doing so. I particularly missed having a main 
> procedure with all the global definitions in it. Especially the program 
> parameters.
>
> Any thoughts would be welcome.