Re: [EXTERNAL] Parameter lists

[Craig Richards <craig@xxxxxxxxxxxxxxxx>]

I assumed this was about the PLIST OpCode...

On Thu, 7 Nov 2019 at 13:39, Alan Shore via RPG400-L <
rpg400-l@xxxxxxxxxxxxxxxxxx> wrote:

> Hi John
> Maybe I am not understanding what you are asking about
> If you call a program, the program either needs parameters to run - hence
> a parameter list - or it doesn't
> We have many programs that do not use parameters
> Conversely - we have a large number of programs that do
>
> Alan Shore
> E-mail : ASHORE@xxxxxxxx
> Phone [O] : (631) 200-5019
> Phone [C] : (631) 880-8640
> 'If you're going through hell, keep going.'
> Winston Churchill
>
> -----Original Message-----
> From: RPG400-L [mailto:rpg400-l-bounces@xxxxxxxxxxxxxxxxxx] On Behalf Of
> john erps
> Sent: Thursday, November 7, 2019 8:32 AM
> To: RPG programming on IBM i <rpg400-l@xxxxxxxxxxxxxxxxxx>
> Subject: [EXTERNAL] Parameter lists
>
> Hi all,
>
> In almost every RPG program i see parameter lists are extensively used. I
> like to know the advantage of see as i don't see it. It's rather unique to
> RPG, separating the list of parameters from the actual call.
>
> Every time i see a call i have to go to the beginning of the program to
> see the actual parameters that are used. This, for me, is very
> inconvenient. I ever use them. The only "advantage" i see has something to
> do with "reuse".
> Reuse is good, i wish it would be really used in RPG programs more (i.e.
> service program and procedures etc). Instead, we got "parameter lists".
>
> What is the advantage of parameter lists??
>
> I suspect there is no advantage, just "we always do it like that". They
> were just introduced to cope with the limited punch card format. Same with
> key lists actually. But these days we don't have to use them anymore.
> Provided free format RPG is used.
>
> Parameter lists... does anybody know there advantage, besides obscuring
> the program??
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