RE: Prototype Field References

[Marco Facchinetti <facchinetti@xxxxxxxxx>]

About prototype definitions you can use the like keyword.
Our standard is to define the ds (dictionary) in all the programs, of course
the ds is based on a pointer so there is no memory waste and since the
pointer is never set we cannot modify (and use) the fields.

E.g. d mydiz      e ds       based(p_mydiz)

This is working since we have a package and the srvpgm are for internal use
only (we are not selling the service programs to somebody else). Of course
if you have to distribute your programs this is not the right way.

HTH
Marco

--- "Mike Pantzopoulos - (H/O)" <mpantzopoulos@xxxxxxxxxxxxxxxx> wrote:

> 
> Apologies! It should read a prototype (member)  is actually a
> copy-book!!!
> -----Original Message-----
> From: rpg400-l-bounces@xxxxxxxxxxxx
> [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Mike Pantzopoulos -
> (H/O)
> Sent: Thursday, 29 September 2005 4:00 PM
> To: rpg400-l@xxxxxxxxxxxx
> Subject: Prototype Field References
> 
> 
> I am looking for some advice concerning the use of prototypes and the
> actual parameter passed via a sub-procedure:
> 
>       *       Our application uses an external dictionary, and only in
> exceptional circumstances do we ever hard-code an attribute.
>       *       A sub-procedure is actually a copy-book. I haven't
> worked out how to define the prototype parameter as a reference to an
> external data dictionary. Therefore, the field definition is whatever is
> hard-coded in the parameter declaration. Is this correct, or is there
> another way?
>       *       A program which requires the prototype needs to make
> sure that the parameter passed to the procedure matches the attributes
> declared in the prototype. If the prototype definition changes then it
> seems extremely difficult to manage the amendment of all the programs
> which use the prototype/procedure.
>       *       Because the prototype is a source file and not an
> object, the D-spec declaration cannot reference the prototype
> declaration and because the prototype is a source file, it cannot share
> a common definition reference.
> 
> In essence, there seems to be a huge maintenance issue here.
> 
> Am I right with this assessment?
> 
> Any comments?
>     
> Thanks In Advance
> 
> Mike Pantzopoulos
> 
> EIG-Ansvar Limited
> Tel  : 61 (3) 9614 3535
> Fax: 61 (3) 9614 2740
> 
> 
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