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Status Submitted
Workspace IBM i
Categories Languages - RPG
Created by Guest
Created on Mar 28, 2024

RELATED IDEAS

Add bit identifiers to DCL-DS subfields in RPG IV

I'd like to have the ability to declare a bit field in an RPG IV data structure.

In the C language, you might have a structure like this:

struct _Gen_IOP_T {
                             /*Gen IOP breakdown structure for MATMATR*/
       char          Bus;                /* Bus Number                */
       int           Card    : 4;        /* Card Number               */
       int           Board   : 4;        /* Board Number              */
    } _Gen_IOP_T;

And I'd like to do the same in RPG IV like this:

    Dcl-Ds Gen_IOP_T;
       Bus Char(1);
       Card Int(10:4);
       Board Int(10:4);
     End-Ds;

     

The 2nd parameter of the int() and char() types could be the bit size.

Then in Calcs, I could just compare it to a value like 1, 2, 3, etc. instead of using the %BITAND or whatever.

It also allow us to part the MIH includes to RPG IV dcl-ds much more easily.

 

Idea priority High

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