I'm quite a newbie using C ++. I am trying to implement in C ++, the state machine described in this link for C language: https://barrgroup.com/Embedded-Systems/How-To/State-Machines-Event-Driven-Systems .

I have created an Fsm class, which implements the behavior of the state machine, and a Machine class, whose methods will be the states.

The code works, but it generates a warning (-Wpmf-conversions) when I try to savethe memory address of a Machine method, in State state__

class Fsm
{
public:
    typedef void (*State)();
private:
    State state__;
public:
    Fsm(State state);
    void dispatch();
}; 

Fsm::Fsm(State state)
{
    state__ = state ;
} //Fsm

void Fsm::dispatch()
{
    (*state__)() ;
}



class Machine : public Fsm
{
public:
    Machine() : Fsm((State)&Machine::initial) {}       // ctor
};