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One line - looping (curved - will never intersect)

  *        _ *         _ *
  |      /   |       /   |
  v   /      v    /      v
  */         * /         *


opps - he said - two dimensional - oh well - nice try



Jeff Stevens
Mize, Houser & Co. P.A.
913 451 1882
JStevens@xxxxxxxxxxxxxx





MWalter@xxxxxxxxxxxxxxx 
Sent by: rpg400-l-bounces@xxxxxxxxxxxx
02/01/2005 03:21 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: RPG read loops






Sorry, Starting top center dot. Is this what you had in mind or did I
mis-read the 'documentation'. What did you intend? :-) I must say, I've
seen better documentation in Mapics programs. LOL

Thanks,

Mark

Mark D. Walter
Senior Programmer/Analyst
CCX, Inc.
mwalter@xxxxxxxxxx
http://www.ccxinc.com


 
             MWalter@hanoverwi 
             re.com 
             Sent by:                                                   To 

             rpg400-l-bounces@         RPG programming on the AS400 / 
             midrange.com              iSeries <rpg400-l@xxxxxxxxxxxx> 
                                                                        cc 

 
             02/01/2005 04:14                                      Subject 

             PM                        RE: RPG read loops 
 
 
             Please respond to 
              RPG programming 
              on the AS400 / 
                  iSeries 
             <rpg400-l@midrang 
                  e.com> 
 
 




 *--------->*--------->*
 ^          |          |
 |          v          v
 *<---------*<---------*


Thanks,

Mark

Mark D. Walter
Senior Programmer/Analyst
CCX, Inc.
mwalter@xxxxxxxxxx
http://www.ccxinc.com



             "Bob Cozzi"
             <cozzi@xxxxxxxxx>
             Sent by:                                                   To
             rpg400-l-bounces@         "'RPG programming on the AS400 /
             midrange.com              iSeries'" <rpg400-l@xxxxxxxxxxxx>
                                                                        cc

             02/01/2005 03:54                                      Subject
             PM                        RE: RPG read loops


             Please respond to
              RPG programming
              on the AS400 /
                  iSeries
             <rpg400-l@midrang
                  e.com>






Oh, and each dot on the top row must be connected with each dot in the
bottom row, in case that wasn't clear.

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx]
On Behalf Of Bob Cozzi
Sent: Tuesday, February 01, 2005 2:39 PM
To: 'RPG programming on the AS400 / iSeries'
Subject: RE: RPG read loops

Yes there is a better way...
I will only tell you the answer, however, after you send me a diagram
illustrating how, in the figure below, to connect the top row of 3 dots
with
the bottom row of 3 dots using a line drawn with a pen or pencil WITHOUT
ever allowing any of the lines to intersect. This has to be accomplished 
on
a two-dimensional surface. You have ten minutes... Go!

  *          *          *


  *          *          *



-Bob Cozzi


-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx]
On Behalf Of Paul Morgan
Sent: Tuesday, February 01, 2005 2:27 PM
To: rpg400-l@xxxxxxxxxxxx
Subject: RPG read loops

Almost all of the code in the current Leave / Iter thread showed a loop
like:

DoU F3 or F12
   exfmt
   If Not (F3 or F12)
      //  do something
   EndIf
EndDo

This only has one exfmt statement inside a DoU loop.  A similar file read
loop would be:

DoU %EoF
   Read
   If Not %Eof
      // do something
   EndIf
EndDo

which has one read statement inside of a DoU loop.  Isn't there a better
way
of coding loops with more than one read/exfmt like:

exfmt
DoW Not (F3 or F12)
   //  do something
   exfmt
EndDo

or

Read
DoW Not %Eof
   // do something
   Read
EndDo

or

SetLL
ReadE
DoW Not %Eof
   // do something
   ReadE
EndDo

Most programmers seem to code with the single read/exfmt style which IMHO
complicates the code.  In a DoU/Read loop the body of the loop is nested
two
deep inside the DoU and an If statement.  In a Read/DoW/Read loop the body
of the loop is nested one deep inside a DoW.  Doesn't this reduction in 
the
nesting of the body of the loop improve the program?  Readability is
improved.  Performance is also improved (although minor) with the removal
of
one test against the end of loop.

Other programmers I work with are adamant about not coding more than one
read statement.  Why is coding more than one read statement such a 
problem?

Paul

--
Paul Morgan
Senior Programmer Analyst - Retail
J. Jill Group
100 Birch Pond Drive, PO Box 2009
Tilton, NH 03276-2009
Phone: (603) 266-2117
Fax:   (603) 266-2333



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