Re: Bindable APIs Vs Non-Bindable APIs

"Paramasivam Murugesan , Gurgaon" wrote:
> 
> What are all the difference between Bindable APIs & Non-Bindable APIs ?
> 
> I know, One is bindable to the PGM Object and the other is Non-bindable to
> *PGM's.
> 

One big difference is how optional parameters are handled.

For the PGM APIs, the term used in the documentation is "optional".  You
can leave the parameter completely out of your call.  

       call api(parm1, parm2, optionalparm3)
       call api(parm1, parm2)

For the CEE APIs, the term used in the documentation is "omissible". 
You still have to pass something for the parameter; if you leave it out,
random bad things can happen.  In RPG, you code OPTIONS(*OMIT).

       call api(parm1, parm2, optionalparm3)
       call api(parm1, parm2, nullpointer)
It depend on your programming language exactly how you pass that
nullpointer.  In RPG, you code *OMIT; in C, you code NULL; in COBOL, you
code OMITTED.  (I don't think it's possible to omit parameters in CL.)