Hi,

I tried to enhance the backend of boost::msm by inheriting from boost::msm::back::state_machine.

When doing so, I cannot access members of my subclass in the states.

When compiling the attached example, I get this error message:

error: ‘class boost::msm::back::state_machine<fsm_, boost::parameter::void_, boost::parameter::void_, boost::parameter::void_, boost::parameter::void_>’ has no member named ‘test’

How can I "inject" extended_back_machine as the type being passed as "FSM" to the state?

Bye
Manuel

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template<typename FrontMachine>
struct extended_back_machine : public boost::msm::back::state_machine<FrontMachine>
{
void test()
{
    std::cout << "test" << std::endl;
}
};

struct fsm_ : public boost::msm::front::state_machine_def<fsm_>
{
struct State : public boost::msm::front::state<>
{
    template <class Event,class FSM>
    void on_entry(Event const&, FSM& fsm)
    {
      fsm.test();
    }
};
typedef State initial_state;
};

int main()
{
typedef extended_back_machine<fsm_> fsm;
fsm m;
m.start();
return 0;
}

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