Re: Field value - Pointers

[Rob Berendt <rob@xxxxxxxxx>]

You're right.  I've sent my apologies.

However, this pointer stuff is great.  I am writing a program and found another 
use for it.  Check out:
                                                                      
 * DDS only allows us to have 10 character field names.  Therefore    
 * we will print PRTMSG.  However we want the value of PRTMSG to      
 * always be the value of ExceptionId.                                
D PrtMsgP         S               *   inz(%addr(ExceptionId))         
D PrtMsg          S                   like(ExceptionId) based(PrtMsgP)
                                                                      
 * We want to print the first 70 characters of ObjectName.  Therefore 
 * we will print the field Objname which will always contain the first
 * 70 characters of ObjectName.  No moves or substrings needed.       
D ObjnameP        S               *   inz(%addr(ObjectName))          
D Objname         S             70A   based(ObjnameP)                 





boldt@ca.ibm.com on 04/13/2000 04:09:02 PM
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Subject:        Re: Field value



Rob wrote:
>Hey Hans,
>Did you get my pointer example?  And the explanation of why you
>might want to do this?
>My sample program compiled and worked fine.
>Oh my God!  Jon goaded me into being a pointer fiend!  And I've
>never touched them before RPGIV!

I don't think pointers will help Vini in this case.  What he
has is a number of different customer types, each one with a
different set of required fields in the record.  He wants to
assure that each record has  the appropriate set of required
fields. This sounds like a database design question that I'm
not really qualified to answer.  I'm sure there must be some
good database designers out there who're much more qualified
to help.

Cheers!  Hans

Hans Boldt, ILE RPG Development, IBM Toronto Lab, boldt@ca.ibm.com


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