1 // Copyright 2008 Christophe Henry 2 // henry UNDERSCORE christophe AT hotmail DOT com 3 // This is an extended version of the state machine available in the boost::mpl library 4 // Distributed under the same license as the original. 5 // Copyright for the original version: 6 // Copyright 2005 David Abrahams and Aleksey Gurtovoy. Distributed 7 // under the Boost Software License, Version 1.0. (See accompanying 8 // file LICENSE_1_0.txt or copy at 9 // http://www.boost.org/LICENSE_1_0.txt) 10 11 #ifndef BOOST_MSM_BACK_TOOLS_H 12 #define BOOST_MSM_BACK_TOOLS_H 13 14 15 #include <string> 16 #include <iostream> 17 #include <boost/msm/back/common_types.hpp> 18 #include <boost/msm/back/metafunctions.hpp> 19 20 namespace boost { namespace msm { namespace back 21 { 22 23 // fills the array passed in with the state names in the correct order 24 // the array must be big enough. To know the needed size, use mpl::size 25 // on fsm::generate_state_set 26 template <class stt> 27 struct fill_state_names 28 { fill_state_namesboost::msm::back::fill_state_names29 fill_state_names(char const** names):m_names(names){} 30 template <class StateType> operator ()boost::msm::back::fill_state_names31 void operator()(boost::msm::wrap<StateType> const&) 32 { 33 m_names[get_state_id<stt,StateType>::value]= typeid(StateType).name(); 34 } 35 private: 36 char const** m_names; 37 }; 38 39 // fills the typeid-generated name of the given state in the string passed as argument 40 template <class stt> 41 struct get_state_name 42 { get_state_nameboost::msm::back::get_state_name43 get_state_name(std::string& name_to_fill, int state_id):m_name(name_to_fill),m_state_id(state_id){} 44 template <class StateType> operator ()boost::msm::back::get_state_name45 void operator()(boost::msm::wrap<StateType> const&) 46 { 47 if (get_state_id<stt,StateType>::value == m_state_id) 48 { 49 m_name = typeid(StateType).name(); 50 } 51 } 52 private: 53 std::string& m_name; 54 int m_state_id; 55 }; 56 57 // displays the typeid of the given Type 58 struct display_type 59 { 60 template <class Type> operator ()boost::msm::back::display_type61 void operator()(boost::msm::wrap<Type> const&) 62 { 63 std::cout << typeid(Type).name() << std::endl; 64 } 65 }; 66 67 } } }//boost::msm::back 68 #endif //BOOST_MSM_BACK_TOOLS_H 69