RE: Using RRN 0 to do Setll on arrival sequence file

I think that the documentation is fine.

To position the file before the first record of a file, you should be
using setll with a rrn of 1.

Probably, the compiler should have flagged an rrn of 0 as an error or
should have gotten a run-time exception.  As someone else mentioned,
requesting that the file be positioned at a rrn that is invalid doesn't
make sense.

In other words,

Setll w/rrn = 1 means, position the file before the 1st record, ie. at
the beginning of the file.

Therefore

Setll w/rrn = 0 means, position the file one record before the 1st
record, ie. before the beginning of the file.


You won't be able to talk IBM into making 0 = 1 <grin>

But you could probably get them to throw an exception on rrn = 0.

HTH,

Charles Wilt
--
iSeries Systems Administrator / Developer
Mitsubishi Electric Automotive America
ph: 513-573-4343
fax: 513-398-1121
  

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx 
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Lim Hock-Chai
Sent: Friday, October 20, 2006 2:48 PM
To: RPG programming on the AS400 / iSeries
Subject: RE: Using RRN 0 to do Setll on arrival sequence file

Read will fail after setll with rrn 0, which take us back to the
original question of why would setll with rrn 0 set the 
cursor to end of
file.  It should set to the beginning of file according to setll
documentation.  


-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Wilt, Charles
Sent: Friday, October 20, 2006 1:36 PM
To: RPG programming on the AS400 / iSeries
Subject: RE: Using RRN 0 to do Setll on arrival sequence file

Ah, but did you try doing a read after the setll with 0?

It'd be interesting if the read works.

Charles Wilt
--
iSeries Systems Administrator / Developer Mitsubishi Electric 
Automotive
America
ph: 513-573-4343
fax: 513-398-1121
  

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Lim Hock-Chai
Sent: Friday, October 20, 2006 2:24 PM
To: RPG programming on the AS400 / iSeries
Subject: RE: Using RRN 0 to do Setll on arrival sequence file

Uummm.
For a non empty file, READ will be successful when cursor is at BOF.
READ will failed when cursor is at EOF.  The opposite applies for 
READP.
So, for me, technically, they are not the same.


-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Bob P. Roche

<clip> technically the begiining of the file is and "end of 

file" You 

can set on EOF from READP also.
</clip>

--
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.

-- 
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.


-- 
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.