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Hmmm.... not sure what value there is in moving the elements one at a time
as opposed to en masse. Unless you're thinking there may be a "hole" in the
middle and you need to compress it out. But a routine like that described
could be used to ensure that that doesn't happen.

I'm in the midst of other activities, but before this night is through, I
will try to put together an understandable sample to show the value of this
sort of logic, and in the process show you how it could be used to compress
out the blanks, should they be introduced. 'Cuz I think it's worth it. :)

Dennis Lovelady
http://www.linkedin.com/in/dennislovelady
--
"It is a paradox that every dictator has climbed to power on the ladder of
free speech. Immediately on attaining power each dictator has suppressed
all free speech except his own."
-- Herbert Hoover


Thanks for your reply Dennis
I must admit, this intrigued me, but from what I can find on the
internet, this doesn't move the individual occurrences down the way I
want it to
Of course, with the way my brains been working today, I probably will
be 100% wrong

Alan Shore
Programmer/Analyst, Direct Response
E:AShore@xxxxxxxx
P:(631) 200-5019
C:(631) 880-8640
"If you're going through Hell, keep going" - Winston Churchill


-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-
bounces@xxxxxxxxxxxx] On Behalf Of Dennis
Sent: Tuesday, April 26, 2011 2:29 PM
To: RPG programming on the IBM i / System i
Subject: Re: Filling an array from the first occurrence on down

I use what may be considered a cheater's approach to this. I set a
pointer to the source and the target, calculate the lengths, and do a
memcpy to shift such data. So that if I want to shift elements 1-5
"up", pSrc will point to array(1), pTgt will point to array(2), and len
will have the number of bytes to copy (the number of elements * size of
each element). Then:

memcpy(pTgt, pSrc, len) ;

Works for compressing out, too. And no silly looping.

"Alan Shore" <ashore@xxxxxxxx> wrote:

Hi everyone
I'm having one of those days where no matter what I do, I just cannot
get my head around what should be a simple problem Hopefully someone
is
kind enough to provide an answer I have an array
D LINE S 30 DIM(6)

Data can be in any combination of the occurrences (or none at all) I
need to create logic so that data is moved down to fill in from the
first, through the second, then third etc., until the only blanks are
in the trailing occurrences

Hopefully I explained it correctly, here is an example
1
2 data 1
3
4
5 data here
6 f=data 2

Becomes
1 data 1
2 data here
3 f=data 2
4
5
6
NOTE - I don't want the information sorted, just moved up As always,
any and all responses gratefully appreciated

Alan Shore
Programmer/Analyst, Direct Response
E:AShore@xxxxxxxx
P:(631) 200-5019
C:(631) 880-8640
"If you're going through Hell, keep going" - Winston Churchill

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