Re: Additional RPGLE Enhancement Requests

Date:   7/17/97  7:40 PM
RE:     Re: Additional RPGLE Enhancement Requests
<SNIP>

>As I said, this is just some random bit of brainstorming, so I don't
>know all of the ramifications yet.  But here is an example:
>
>   D DataStruct    DS
>   D   Combined
>   D     Field1                 OVERLAY(Combined:1)
>   D     Field2                 OVERLAY(Combined:*NEXT)
>   D     Field3                 OVERLAY(Combined:*NEXT)
>
 <SNIP>
>
>So, in this example, if FIELD1, FIELD2, and FIELD3 are each 10 byte
>long fields, subfield COMBINED is implicitly defined as 30A.  If the
>definition of any subfield changes, the definition of COMBINED would
>also change on recompile with no source change.
>This shouldn't be too difficult for us to implement since we already
>have to deal with computing the length of data structures like this.
>
>Cheers!  Hans

Hans
Now if we could just get the definitions of those variables, 
(Maybe Invoice Number, Customer Number, Order Number, etc.)
from our Field Reference file via the H-Spec  REF(FIELDREF)
keyword......... Our app's would really reflect/change automatically
with the changes to our data base.


P.S.  Hans as you know, if we have a externally defined D/S,
We cannot use any of those fields in any other D/S right? (a real pain)
Can you explain why you(plural, ie yous guys) can't allow us to 
have a variable in more than one D/S? 

I mean we can have the variable in multiple storage locations now
in an RPG program right?  Like the same name from 2 data base files,
a couple of more from different formats on a display file, and a 
couple of more in the printer file formats.  

Why can't we have a couple of more storage locations in different
Data Structures?   I would agree we couldn't have the same one 
twice in the Same D/S(like you can't have the same within 
one DSPF format) But come on,  stretch......

John Carr


John Carr
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