Function pointers

[meebee]

PCH version 3.158

I wanted to write a dispatcher function, with an array storing pointes to callback functions. Given a certain event I wanted to call the appropriate callback function.
Unfortunately it seems that the pic c compiler doesnt support function pointers. E.g:

void do_nothing() {}

void main() {
void (*p)();
p = do_nothing;
p();
}

Gives me this error message:
Error 117: Improper use of a function identifier.

Did I miss something or is the compiler not capable with dealing of function pointers? Is there any workaround for this?

Any help appreciated,
Michael

[dyeatman]

There have a LOT of discussions about pointers on the board! Search this board for function pointers and you will get a lot of info and some sample code!

[Neutone]

[meebee]

This is the hardware platform I use:
http://particle.teco.edu/artefacts.html

The data that is transmitted over RF always has a certain type.
There are e.g. different control types/messages and depending on the application you have to respond differently.
So what I want to to is to use a dispatcher and a register_callback function. Then you can write your custom handler function, register it and it is invoked appropriately by the dispatcher.
My main goal is provide a development platform where other developers can write applications upon. With the aforementioned mechanism I can cleanly separate the underlying framework from the application that is written with it.