Re: ILE RPG & List API's

["Roger Pence" <rp@xxxxxxxxxxxxxx>]

Nigel---

A year or so ago (hmmm, maybe longer, time flies!), Julian Monypenny
provided some very good user space routines in a couple of NEWS/400
articles. It was very good stuff, although I am pretty sure it hasn't been
converted to RPG IV (it was RPG/400).

rp

-----Original Message-----
From: nigel.percy@pocruises.com <nigel.percy@pocruises.com>
To: midrange-l@midrange.com <midrange-l@midrange.com>
Date: Tuesday, April 14, 1998 11:19 AM
Subject: ILE RPG & List API's


     Hi All,


     Could someone give me some advice regarding using ILE RPG and list
     API's via user spaces. As you know you can manipulate data in user
     spaces via pointers in ILE RPG. If I going to be retrieving data via
     an API into a user space and I have no idea how much data is going to
     be returned, what do I set the Data Structure/Array Size to?

     If I set it 'Really Big' this will obviously have a negative impact on
     the amount of storage that the pgm uses.

     You can't use dynamic allocation because I don't know how items are
     going to be returned via the API.

     The pointer method seems to be at a disadvantage when compared with
     using the QUSRTVUS and incrementing the offset

     Please someone tell me I got it wrong and that the pointer method is
     the way to go.


     Nigel Percy

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