RE: Sorting a user space

Why 2047? I could make the PtrAry as large as I would like I think. And
if I ran out of room, I could use a file instead of the table - although
it would be slower.

And the filler is necessary - at least on the compiler I use. It
complains about alignment otherwise.

I think you're right about the Align verb though - it's just hanging
there.

And the point was the idea - not necessarily my demonstration of perfect
syntax - I just typed this off the top of my head - after a glance at
some other code. In this case - it's the idea of using pointers to the
data in the user space as data itself that can be manipulated as any
other data can be.

I was offering my help with the idea. Not code to copy and use as
printed.

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Scott Klement
Sent: Wednesday, 14 September 2005 7:42
To: RPG programming on the AS400 / iSeries
Subject: RE: Sorting a user space


> D                     DS              Align
> D PtrAry                      32      Dim(100)
> D ThePtr                  *   Inz(*Null) Overlay(PtrAry:1)
> D The1stSortField        2A   Overlay(PtrAry:17)
> D The2ndSortField        2A   Overlay(PtrAry:19)
> D Filler                12A   Overlay(PtrAry:21)

That'll work as long as you have 2047 or fewer entries to sort.  (or
1023 
if you're running an older release of OS/400).

Also, your filler field is unnecessary, since the entries in the DS 
overlay a 32A field, they'll always be aligned on a 32 byte boundary,
with 
or without the filler.

Also, the ALIGN keyword is doing nothing in this example, since there's 
only one field in the data structure, (not counting the overlaid 
ones) there's no field after it to align.