1 #if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES) 2 3 #include <boost/proto/detail/preprocessed/and_n.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/and_n.hpp") 9 #endif 10 11 /////////////////////////////////////////////////////////////////////////////// 12 /// \file and_n.hpp 13 /// Definitions of and_N, and_impl 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, (2, BOOST_PP_MAX(BOOST_PROTO_MAX_ARITY, BOOST_PROTO_MAX_LOGICAL_ARITY), <boost/proto/detail/and_n.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 // BOOST_PP_IS_ITERATING 32 33 #define N BOOST_PP_ITERATION() 34 35 // Assymetry here between the handling of and_N and or_N because 36 // and_N is used by lambda_matches up to BOOST_PROTO_MAX_ARITY, 37 // regardless of how low BOOST_PROTO_MAX_LOGICAL_ARITY is. 38 template<bool B, BOOST_PP_ENUM_PARAMS(BOOST_PP_DEC(N), typename P)> BOOST_PP_CAT(and_,N)39 struct BOOST_PP_CAT(and_, N) 40 #if 2 == N 41 : mpl::bool_<P0::value> 42 {}; 43 #else 44 : BOOST_PP_CAT(and_, BOOST_PP_DEC(N))< 45 P0::value BOOST_PP_COMMA_IF(BOOST_PP_SUB(N,2)) 46 BOOST_PP_ENUM_SHIFTED_PARAMS(BOOST_PP_DEC(N), P) 47 > 48 {}; 49 #endif 50 51 template<BOOST_PP_ENUM_PARAMS(BOOST_PP_DEC(N), typename P)> BOOST_PP_CAT(and_,N)52 struct BOOST_PP_CAT(and_, N)<false, BOOST_PP_ENUM_PARAMS(BOOST_PP_DEC(N), P)> 53 : mpl::false_ 54 {}; 55 56 #if N <= BOOST_PROTO_MAX_LOGICAL_ARITY 57 58 template<BOOST_PP_ENUM_PARAMS(N, typename G), typename Expr, typename State, typename Data> 59 struct _and_impl<proto::and_<BOOST_PP_ENUM_PARAMS(N, G)>, Expr, State, Data> 60 : proto::transform_impl<Expr, State, Data> 61 { 62 #define M0(Z, N, DATA) \ 63 typedef \ 64 typename proto::when<proto::_, BOOST_PP_CAT(G, N)> \ 65 ::template impl<Expr, State, Data> \ 66 BOOST_PP_CAT(Gimpl, N); \ 67 /**/ 68 BOOST_PP_REPEAT(N, M0, ~) 69 #undef M0 70 71 typedef typename BOOST_PP_CAT(Gimpl, BOOST_PP_DEC(N))::result_type result_type; 72 operator ()_and_impl73 result_type operator()( 74 typename _and_impl::expr_param e 75 , typename _and_impl::state_param s 76 , typename _and_impl::data_param d 77 ) const 78 { 79 // Fix: jfalcou - 12/29/2010 80 // Avoid the use of comma operator here so as not to find Proto's 81 // by accident. 82 // expands to G0()(e,s,d); G1()(e,s,d); ... G{N-1}()(e,s,d); 83 #define M0(Z,N,DATA) BOOST_PP_CAT(Gimpl,N)()(e,s,d); 84 BOOST_PP_REPEAT(BOOST_PP_DEC(N),M0,~) 85 return BOOST_PP_CAT(Gimpl,BOOST_PP_DEC(N))()(e,s,d); 86 #undef M0 87 } 88 }; 89 90 #endif 91 92 #undef N 93 94 #endif 95