RE: Reading large parm

Why not define a field containing the address of that parameter, and a
field of 6 positions the address of which you initialize with that
parameter address. Then increasing the address value with 6 every time
you want to read the next 6 positions. Whatever solution you choose,
choose maintainability over speed. My address solution nears the old
C-pointer arithmetic which is not too clear to ye olde RPG programmers,
and to be honest the solution with the array might be best to explain to
other programmers (and is perhaps better self-documenting).

The address solution might be better if the actual length of the field
is varying very often (120 the one day and 1020 the next), but requires
more information (like: length of field) to work in all situations.

Again: maintainability over speed. The cost of a developer outweighs the
cost of a few CPU cycles.

My eur. 0.02.

Cor

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-
bounces@xxxxxxxxxxxx] On Behalf Of rob@xxxxxxxxx
Sent: dinsdag 6 mei 2008 16:42
To: RPG programming on the AS400 / iSeries
Subject: Re: Reading large parm

Two different ways come to light. Assumption is that the six places
you
need are character and one field. Change to datastructure if they
aren't.


One:

For x = 1 to 115 by 6;
GoProcess(%substr(Big:x:6));
EndFor;

Two:

D MyChar based(pMyChar)

For x=0 to 119 by 6;
pMychar=%address(Big) + x;
GoProcess(Mychar);
EndFor;





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





Steve Jones <sjones@xxxxxxxxxxxxxx>
Sent by: rpg400-l-bounces@xxxxxxxxxxxx
05/06/2008 10:24 AM
Please respond to
RPG programming on the AS400 / iSeries <rpg400-l@xxxxxxxxxxxx>


To
rpg400-l@xxxxxxxxxxxx
cc

Subject
Reading large parm






Group:

I am looking for a good way to break apart a large parm passed to my
program. The parm will be 120 in length, but I need to read 6 places

at

a time & use that later in the program. Instead of creating a data
structure which breaks it down, can I somehow just read 6 places at a
time, use that info, then read the next 6?

Thank in advance
Steve Jones
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