RE: Would it be a reasonable to ask IBM's programmers to, write a %sortsfl(sfl: column)

From: neill.harper@xxxxxxxx
To: midrange-l@xxxxxxxxxxxx
Subject: RE: Would it be a reasonable to ask IBM's programmers to, write a %sortsfl(sfl: column)
Date: Mon, 7 Dec 2009 20:10:43 +0000

This is supported at the os level.

Check out QUSCRTUI, QUSADDUI, QUSRRTVUI.

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of john e
Sent: 07 December 2009 15:32
To: midrange-l@xxxxxxxxxxxx
Subject: RE: Would it be a reasonable to ask IBM's programmers to, write a
%sortsfl(sfl: column)




I would be happy to have some simple functionality, like a simple list or
map, where the keys/values are simple fields or datastructures. I will
handle deallocating resources myself, or simply use actgrp(*new).

For example, many times you need to simply collect revenues per department
where you have to totalise on department.
The standard approach for this is to use a temporary keyed file for this
which is a rather convoluted / complex solution for such a simple function.
You have an extra file definition, a file specification and all the db
overhead that comes along with using a database file. And the only reason
you use this db file is the "indexing" functionality that comes with it
(retrieve a record with a key). But this indexing functionality is simply
some datastructure and some operations.

Instead, with a simple map, one could create a procedure which defines a
variable with type "map" for example and have a light-weight simple solution
for this.

You don't need garbage collection, interfaces, a type system etc etc for
this.

But i know, it will never happen.
Because.... "i can do that already now with RPG"
See my previous post why in 10 years most as400 apps are still green-screen.

Date: Mon, 7 Dec 2009 10:03:12 -0500
Subject: Re: Would it be a reasonable to ask IBM's programmers to, write a

%sortsfl(sfl: column)

From: stephenrichter@xxxxxxxxx
To: midrange-l@xxxxxxxxxxxx

On Mon, Dec 7, 2009 at 6:17 AM, john e <jacobus1968@xxxxxxxxxxx> wrote:

Agreed...

IBM should enhance RPGIV to support "collections", like maps and lists.

I don't think that is the sort of thing you can just bolt onto a
language. There has to be a solid foundation of features like gargage
collection, objects, interfaces, base classes, metadata, type system,
...
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