Re: Questions about DS arrays

[rob@xxxxxxxxx]

Some sorting is allowed
http://archive.midrange.com/rpg400-l/200312/msg00096.html

Rob Berendt
-- 
Group Dekko Services, LLC
Dept 01.073
PO Box 2000
Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com





Scott Klement <rpg400-l@xxxxxxxxxxxxxxxx> 
Sent by: rpg400-l-bounces@xxxxxxxxxxxx
12/08/2004 02:17 PM
Please respond to
RPG programming on the AS400 / iSeries <rpg400-l@xxxxxxxxxxxx>


To
RPG programming on the AS400 / iSeries <rpg400-l@xxxxxxxxxxxx>
cc

Subject
Re: Questions about DS arrays






> 1.  Can an individual field within a data structure array be sorted
> using the BIF %SUBARR and the SORTA op code?

Depends on what you mean by "data structure array".  If you've got a
qualified data structure with the DIM keyword on the DS definition (i.e.
an "array of qualified data structures") then no, you can't sort it with
SORTA (with or without %SUBARR)

You could sort it with qsort(), which is faster, anyway.

If you're referring to an array that's located inside a data structure, or
a field that overlays an array field that's inside a data structure, then
you can sort it with SORTA.  (But you can't have data structures or
sub-arrays inside that...)


> 2.  What is the best way to clear or initialize a large data structure
> array (over 5000 elements)?  I have found that using the CLEAR opcode
> takes a long time.

Is there a good reason to clear it?  Maybe you should keep track of how
many elements you've used in a separate variable, and then only refer to
those elements.  That way, there's no need to clear it.

--
This is the RPG programming on the AS400 / iSeries (RPG400-L) mailing list
To post a message email: RPG400-L@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/rpg400-l
or email: RPG400-L-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at http://archive.midrange.com/rpg400-l.