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  1.  Home
  2. RPG400-L
  3. March 2007

RE: char to numeric

Try ATOLL() as I suggested.

-Bob Cozzi
www.i5PodCast.com
Ask your manager to watch i5 TV



-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On
Behalf Of Lim Hock-Chai
Sent: Friday, March 02, 2007 11:46 AM
To: RPG programming on the AS400 / iSeries
Subject: RE: char to numeric

Oops.  Thanks for catching that.  I also notice that in the atoi method,
I declare the num as 10s 0 instead of 10i 0.  Redo and rerun and result
are below 

%dec takes 8 secs.
%int takes 12 secs.
atoi takes 8 secs.

%int method ==>
D char            s             10    inz('12    ') 
D num             s             10i 0               
D myIx            s             10s 0               
                                                    
 /free                                              
                                                    
   for myIx = 1 to 10000000;                        
    num = %int(char);                               
   endfor;                                          
                                                    
   *inlr = *on;                                     
                                                    
 /end-free                                          


%dec method ==>
D char            s             10    inz('12    ')
D num             s             10s 0              
D myIx            s             10s 0              
                                                   
 /free                                             
                                                   
   for myIx = 1 to 10000000;                       
      num = %dec(char :10 :0);                     
   endfor;                                         
                                                   
   *inlr = *on;                                    
                                                   
 /end-free                                         


Atoi method ==>
H DFTACTGRP(*NO) BNDDIR('QC2LE' :'AHBNDDIR')                
D char            s             10    inz('12    ')         
D num             s             10i 0                       
D myIx            s             10s 0                       
                                                            
D atoi            PR            10i 0 extproc('atoi')       
D  pValue                         *   value options(*string)
                                                            
 /free                                                      
                                                            
                                                            
   for myIx = 1 to 10000000;                                
      num = atoi(char);                                     
   endfor;                                                  
                                                            
   *inlr = *on;                                             
                                                            
 /end-free                                                  

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Alan Shore
Sent: Friday, March 02, 2007 11:36 AM
To: RPG programming on the AS400 / iSeries
Subject: RE: char to numeric

Lim - unless it was a typo on your part, you may want to re-run the
stats for %dec Please see your code for %dec below


Alan Shore

NBTY, Inc
(631) 244-2000 ext. 5019
AShore@xxxxxxxx

rpg400-l-bounces@xxxxxxxxxxxx wrote on 03/02/2007 12:31:43 PM:


Looks like %dec is the winner.  Execute the conversion for 10M times 
and below are result:

%dec takes 4 secs.
%int takes 12 secs.
atoi takes 9 secs.


Below are coding:

%dec method ==>
D char            s             10    inz('12    ')
D num             s             10s 0
D myIx            s             10s 0

 /free

   for myIx = 1 to 10000000;
      num = %dec(num :10 :0);
   endfor;

   *inlr = *on;

 /end-free



%int method ==>
D char            s             10    inz('12    ')
D num             s             10i 0
D myIx            s             10s 0

 /free

   for myIx = 1 to 10000000;
    num = %int(char);
   endfor;

   *inlr = *on;

 /end-free



Atoi method ==>
H DFTACTGRP(*NO) BNDDIR('QC2LE' :'AHBNDDIR')
D char            s             10    inz('12    ')
D num             s             10s 0
D myIx            s             10s 0

D atoi            PR            10i 0 extproc('atoi')
D  pValue                         *   value options(*string)

 /free


   for myIx = 1 to 10000000;
      num = atoi(char);
   endfor;

   *inlr = *on;

 /end-free


-----Original Message-----
From: rpg400-l-bounces+lim.hock-chai=usamobility.com@xxxxxxxxxxxx
[mailto:rpg400-l-bounces+lim.hock-chai=usamobility.com@xxxxxxxxxxxx] 
On Behalf Of David Gibbs
Sent: Friday, March 02, 2007 10:57 AM
To: RPG programming on the AS400 / iSeries
Subject: Re: char to numeric

Lim Hock-Chai wrote:

I need to write a process that requires converting a 10 chars field 
in



a file to a numeric field.  There are millions of records in this 
file



and speed is very import for this process.  Does any one know of the



most speedy way to do this conversion?  Note:  This char field is 
left



justified (contains tailing blanks) and could contain all blanks.


atoi?

D atoi            PR            10i 0 extproc('atoi')
D  pValue                         *   value options(*string)

david

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