1 #if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES) 2 3 #include <boost/proto/detail/preprocessed/poly_function_traits.hpp> 4 5 #elif !defined(BOOST_PP_IS_ITERATING) 6 7 #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) 8 #pragma wave option(preserve: 2, line: 0, output: "preprocessed/poly_function_traits.hpp") 9 #endif 10 11 /////////////////////////////////////////////////////////////////////////////// 12 // poly_function_traits.hpp 13 // Contains specializations of poly_function_traits and as_mono_function 14 // 15 // Copyright 2008 Eric Niebler. Distributed under the Boost 16 // Software License, Version 1.0. (See accompanying file 17 // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 18 19 #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) 20 #pragma wave option(preserve: 1) 21 #endif 22 23 #define BOOST_PP_ITERATION_PARAMS_1 \ 24 (3, (1, BOOST_PROTO_MAX_ARITY, <boost/proto/detail/poly_function_traits.hpp>)) 25 #include BOOST_PP_ITERATE() 26 27 #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) 28 #pragma wave option(output: null) 29 #endif 30 31 #else 32 33 #define N BOOST_PP_ITERATION() 34 35 //////////////////////////////////////////////////////////////////////////////////////////////// 36 template<typename PolyFun BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)> 37 struct poly_function_traits<PolyFun, PolyFun(BOOST_PP_ENUM_PARAMS(N, A)), mpl::size_t<sizeof(poly_function_t)> > 38 { 39 typedef typename PolyFun::template impl<BOOST_PP_ENUM_PARAMS(N, const A)> function_type; 40 typedef typename function_type::result_type result_type; 41 }; 42 43 //////////////////////////////////////////////////////////////////////////////////////////////// 44 template<typename PolyFun BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)> 45 struct as_mono_function_impl<PolyFun(BOOST_PP_ENUM_PARAMS(N, A)), true> 46 { 47 typedef typename PolyFun::template impl<BOOST_PP_ENUM_PARAMS(N, const A)> type; 48 }; 49 50 //////////////////////////////////////////////////////////////////////////////////////////////// 51 template<typename PolyFun BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)> 52 struct as_mono_function_impl<PolyFun(BOOST_PP_ENUM_PARAMS(N, A)), false> 53 { 54 typedef PolyFun type; 55 }; 56 57 //////////////////////////////////////////////////////////////////////////////////////////////// 58 template<typename PolyFun BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)> 59 struct as_mono_function<PolyFun(BOOST_PP_ENUM_PARAMS(N, A))> 60 : as_mono_function_impl<PolyFun(BOOST_PP_ENUM_PARAMS(N, A)), is_poly_function<PolyFun>::value> 61 {}; 62 63 #undef N 64 65 #endif // BOOST_PROTO_DONT_USE_PREPROCESSED_FILES 66