RE: likerec by extname from copybook

Hello Barbara,

I have considered to do so, but because templates are in our D-spec
copybook I must use EXTNAME there. (Or else I would handle outside our
naming rules)
I have a workaround that works, but it causes me to define the
file/recordname in copybook and serviceprograms both. I would like to
define the template only in the copybook, and further use the template.
Is that possible?

This is what I work around now:  (Simplified)

------------------------------------------------------
D-specs copybook templates:

 // Datastructure template                             
d Relatie_t     e ds                  extname(ALGPCN) 
d                                     qualified       
d                                     based(dummyPtr) 

------------------------------------------------------

Serviceprogram prototype copybook

d Relatie_SelectWdw...                                            
d                 PR            10I 0 extproc('Relatie_SelectWdw')
d  ZoekArg                      40A   const                       
d  ZoekMeth                     10I 0 const                       
d  Relatie_ds                         likerec(ALGPCNR)            

------------------------------------------------------

Serviceprogram procedure routine interface

p Relatie_SelectWdw...                                   
p                 B                   export             
d Relatie_SelectWdw...                                   
d                 PI            10I 0                    
d  ZoekArg                      40A   const              
d  ZoekMeth                     10I 0 const              
d  Relatie_ds                         likerec(ALGPCNR)   

somewhere in the routine a chain into ds:

  chain relncn algpcnr Relatie_ds;

-------------------------------------------------------

Calling program:

d/copy from copybook

                                                        
d status          S             10I 0                   
d naam            S             10A                     
d relds           DS                  likeds(relatie_t) 
                                                        
 /free                                                  
    status = Relatie_SelectWdw( naam                    
                              : InkVerkort_c            
                              : relds                   
                              );                        
    *inlr = *on;                                        
 /end-free


Thanks, Arco!



> -----Oorspronkelijk bericht-----
> Van: rpg400-l-bounces@xxxxxxxxxxxx 
> [mailto:rpg400-l-bounces@xxxxxxxxxxxx] Namens Barbara Morris
> Verzonden: vrijdag 20 mei 2005 21:08
> Aan: rpg400-l@xxxxxxxxxxxx
> Onderwerp: Re: likerec by extname from copybook
> 
> "Simonse, Arco (CMK)" wrote:
> > 
> > What I hoped to do is to define a template datastructure in 
> my D-specs 
> > copybook what calling programs should use when calling the 
> I/O routine.
> > The only place where I want to have F-specs is in my 
> serviceroutines.
> > That's why I tried to use the copybook DS on my LIKEREC definition.
> > 
> > When I replace my LIKERECs with LIKEDS keywords, just like you Tim, 
> > then I cannot chain directly into the datastructure because that 
> > requires the use of LIKEREC. I'm curious how you solved this Tim.
> > 
> 
> In V5R2, I think the best way to handle this is to define a 
> LIKEREC DS to be based, and set the basing pointer to the 
> address of your parmeter DS.  If the parameter is CONST, 
> you'd have to make the LIKEREC DS non-based, and copy the 
> parameter DS to the LIKEREC DS.
> 
> (In V5R3, there's no problem, because the compiler allows the 
> LIKEDS structure to be used for I/O.)
> 
> --
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