Macro for Interrupt Routine

Hi guy's

I'm back with new questions.. :)

I recently tried to add a ISR into a C++ file.. So thats working right 
now, but now I want to try something like that:

#define TIMER(node_instance) extern "C" {void TIM2_IRQHandler() 
node_instance.TimerInterrupt();}}

I want to create a Macro for the TIM2 IRQ. So if an Timer Interrupt 
occurs it should call the node_instance.TimerInterrupt() function. But 
somehow it's not working, that means that the 
node_instance.TimerInterrupt() is not getting called..

I don't have access to the uC. So I can't do any kind of testing right 
now. But maybe I dont have it in the right order?!

Or maybe it should be like:

#define extern "C" {void 
TIM2_IRQHandler()}(node_instance.TimerInterrupt())

But I think this is also wrong..

Any ideas?

Thx
Kenan


p.s. I'm working with codesourcery and the stm32f103