RE: Unbound procedure call

Aren't service programs, by definition, dynamically bound? A static bind being something like binding a module into a program object.

-Kurt

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Alan Campin
Sent: Monday, January 21, 2013 1:55 PM
To: RPG programming on the IBM i (AS/400 and iSeries)
Subject: Re: Unbound procedure call

And where are you going to get the address? The address would be different every time. If you use %PAddr the address is determined at compile time.

The only way I know to do this is to use system functions to dynamically bind to a service program and procedure. See www.think400.dk/downloads.htmand look at my Dynamic Service program load service program.


On Mon, Jan 21, 2013 at 1:39 PM, Dave <dfx1@xxxxxxxxxxxxxx> wrote:

Hi all,

I was asked in an interview how I would go about coding a call to a
procedure so that no binding to that procedure would occur at compilation.
I said I would need to have the addresses of the callable procedures
and I would have a generic prototype based on a pointer that called
the procedure indicated by its address. Depending upon what the
program needed to do I would initialise that pointer so the right procedure would be called.
This was a test to get an idea of my RPG skills, but I discovered that
this was a technique favoured by the shop. I did not dare ask why
would they want to use this technique, so I'm asking : why would you
really want to do it this way? Why not just use a SELECT statement?
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