// Copyright 2008 Christophe Henry // henry UNDERSCORE christophe AT hotmail DOT com // This is an extended version of the state machine available in the boost::mpl library // Distributed under the same license as the original. // Copyright for the original version: // Copyright 2005 David Abrahams and Aleksey Gurtovoy. Distributed // under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt) #ifndef BOOST_MSM_BACK_BIND_HELPERS_H #define BOOST_MSM_BACK_BIND_HELPERS_H #include <functional> namespace boost { namespace msm { namespace back { // helper to replace std::plus as the lack of implicit conversion makes it not usable in one of our bind template<class _Ty,class _Tz> struct plus2 : public std::binary_function<_Ty, _Tz, _Ty> { // functor for operator+ _Ty operator()( _Ty _Left, _Tz _Right) const { // apply operator+ to operands return (_Left + _Right); } }; // helper to dereference a pointer to a function pointer template <class T> struct deref { typedef T& result_type; T& operator()(T* f) const { return *f; } }; } } }//boost::msm::back #endif //BOOST_MSM_BACK_BIND_HELPERS_H