Re: Chain doesn't set %EOF

["Booth Martin" <booth@xxxxxxxxxxxx>]

My guess would be that the reasoning is that a failed chain is not always
the end of the file.  It could, and probably is, the middle of the file, or
even the beginning of the file.  There could well be many records higher
than the chained record.

It surprises me to see that your chain loop actually worked.  I've tried
that and its never worked for me.  :) 
 
---------------------------------
Booth Martin
http://www.martinvt.com
---------------------------------
-------Original Message-------
 
From: RPG programming on the AS400 / iSeries
Date: 03/29/05 10:49:39
To: rpg400-l@xxxxxxxxxxxx
Subject: Chain doesn't set %EOF
 
Why doesn't a failed CHAIN (which sets off %FOUND) also set on %EOF?  I can
code a read loop as:
 
SetLL ( SomeKey) File;
ReadE ( SomeKey ) File;
DoW Not %Eof( File );
   // do something
   ReadE ( SomeKey ) File;
EndDo;
 
Rather that doing a SetLL/ReadE combo to start the loop it used to be
shorthand to code a Chain with:
 
Chain ( SomeKey ) File;
DoW Not %Eof( File );
   // do something
   ReadE ( SomeKey ) File;
EndDo;
 
except Chain doesn't fiddle with %EOF so this won't work.
 
Could do this with RPGIII.  You could put the same indicator for the CHAIN
NotFound indicator position and ReadE EndOfFile indicator position.  Any
possibility of getting Chain to set the %EOF indicator as well as the %FOUND
indicator?  Or would that break existing code?
 
Paul
 
--
Paul Morgan
Senior Programmer Analyst - Retail
J. Jill Group
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Tilton, NH 03276-2009
Phone: (603) 266-2117
Fax:   (603) 266-2333
 
 
 
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