AS400 Mapping Fields To Arrays in ILE RPG -- AS400 AS/400 tnt400.com

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All AS/400 Tip Categories / AS/400 Programming / Mapping Fields To Arrays in ILE RPG

Question:

I'm trying to map a 10 numeric variables (7,6) into an array for clearer coding, but the exact syntax is defeating me. I can do it with alpha vars via the overlay keyword within a D spec, but not numeric. Help!

Answer(s):

Try this. Its a little bit strange but it works.
D  pbtw           s                   based(pbtwpntr) dim(10)
D  pbtwpntr     s               *   inz(%addr(ipbtw00))
The field pbtw is your array (10 elements), based on a pointerfield. The field pbtwpntr is a pointer to the FIRST field of a range of 10 fields (ipbtw00, ipbtw01......ipbtw09).

Assumming none of the 10 variables are already defined in a data structure....
     D MyDs            DS
     D  Var01                         7P 6
     D  Var02                         7P 6
     D  Var03                         7P 6
     D  Var04                         7P 6
     D  Var05                         7P 6
     D  Var06                         7P 6
     D  Var07                         7P 6
     D  Var08                         7P 6
     D  Var09                         7P 6
     D  Var10                         7P 6
     D MyArr                          7P 6 Overlay(Var01)
     D                                     Dim( 10 )
Mike Cravitz NEWS/400 Technical Editor

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