Re: [Boost-users] Pass data to states, in boost state chart

 SateMachine machine;  machine.setData(100);  machine.initiate();  machine.setData(200);  machine.process_evet(event());

3. access that value from state event handler

  sc::result Initial::react(const event())   {     cout << "Data:" << context< StateMachine>().getData() << endl;   }

Please advise if there is any other better solution

If all you need is to pass the data to the reaction, you can encapsulate it in the event: struct your_event : sc::event<your_event> { data_type data_; }; //.... your_event e; e.data_ = data; machine.process_event(e); //... sc::result react(const your_event &e) { cout << e.data_; }