/Src/Dependencies/Boost/boost/spirit/home/phoenix/operator/detail/binary_eval.hpp
C++ Header | 44 lines | 35 code | 3 blank | 6 comment | 0 complexity | 6086b8fab4268f83f97358989190b144 MD5 | raw file
1/*============================================================================= 2 Copyright (c) 2001-2007 Joel de Guzman 3 4 Distributed under the Boost Software License, Version 1.0. (See accompanying 5 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 6==============================================================================*/ 7#ifndef PHOENIX_OPERATOR_DETAIL_BINARY_EVAL_HPP 8#define PHOENIX_OPERATOR_DETAIL_BINARY_EVAL_HPP 9 10#include <boost/mpl/or.hpp> 11#include <boost/mpl/eval_if.hpp> 12#include <boost/mpl/identity.hpp> 13#include <boost/type_traits/is_same.hpp> 14#include <boost/spirit/home/phoenix/core/compose.hpp> 15 16#define PHOENIX_BINARY_EVAL(eval_name, op_result, expr) \ 17 struct eval_name \ 18 { \ 19 template <typename Env, typename A0, typename A1> \ 20 struct result \ 21 { \ 22 typedef typename A0::template result<Env>::type x_type; \ 23 typedef typename A1::template result<Env>::type y_type; \ 24 \ 25 typedef typename \ 26 mpl::eval_if< \ 27 mpl::or_<is_actor<x_type>, is_actor<y_type> > \ 28 , re_curry<eval_name, x_type, y_type> \ 29 , op_result<x_type, y_type> \ 30 >::type \ 31 type; \ 32 }; \ 33 \ 34 template <typename RT, typename Env, typename A0, typename A1> \ 35 static RT \ 36 eval(Env const& env, A0& a0, A1& a1) \ 37 { \ 38 return expr; \ 39 } \ 40 }; 41 42#undef x 43#undef y 44#endif