| // Boost.Range library |
| // |
| // Copyright Neil Groves 2014. Use, modification and |
| // distribution is subject to 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) |
| // |
| // For more information, see http://www.boost.org/libs/range/ |
| // |
| #ifndef BOOST_RANGE_DETAIL_COMBINE_CXX03_HPP |
| #define BOOST_RANGE_DETAIL_COMBINE_CXX03_HPP |
| |
| #ifndef BOOST_RANGE_MIN_COMBINE_ARGS |
| #define BOOST_RANGE_MIN_COMBINE_ARGS 2 |
| #endif |
| |
| #ifndef BOOST_RANGE_MAX_COMBINE_ARGS |
| #define BOOST_RANGE_MAX_COMBINE_ARGS 5 |
| #endif |
| |
| #include <boost/config.hpp> |
| #include <boost/iterator/zip_iterator.hpp> |
| #include <boost/preprocessor/arithmetic/dec.hpp> |
| #include <boost/preprocessor/arithmetic/div.hpp> |
| #include <boost/preprocessor/arithmetic/mul.hpp> |
| #include <boost/preprocessor/control.hpp> |
| #include <boost/preprocessor/control/while.hpp> |
| #include <boost/preprocessor/facilities/empty.hpp> |
| #include <boost/preprocessor/facilities/identity.hpp> |
| #include <boost/preprocessor/iteration/local.hpp> |
| #include <boost/preprocessor/punctuation/comma.hpp> |
| #include <boost/preprocessor/repetition.hpp> |
| #include <boost/preprocessor/tuple/elem.hpp> |
| #include <boost/range/iterator_range_core.hpp> |
| #include <boost/type_traits/remove_reference.hpp> |
| #include <boost/mpl/transform.hpp> |
| #include <boost/utility/result_of.hpp> |
| |
| #include <vector> |
| #include <list> |
| |
| namespace boost |
| { |
| namespace range_detail |
| { |
| |
| template<typename F, typename T, int SIZE> |
| struct combined_result_impl; |
| |
| template<typename F, typename T> |
| struct combined_result |
| : combined_result_impl<F, T, tuples::length<T>::value> |
| { |
| }; |
| |
| #define BOOST_RANGE_combined_element(z, n, data) \ |
| typename tuples::element<n, T>::type |
| |
| #define BOOST_RANGE_combined_result(z, n, data) \ |
| template<typename F, typename T> \ |
| struct combined_result_impl <F,T,n> \ |
| : result_of<F(BOOST_PP_ENUM(n, BOOST_RANGE_combined_element, ~))> \ |
| { \ |
| }; |
| |
| #define BOOST_PP_LOCAL_MACRO(n) BOOST_RANGE_combined_result(~,n,~) |
| |
| #define BOOST_PP_LOCAL_LIMITS (BOOST_RANGE_MIN_COMBINE_ARGS, \ |
| BOOST_RANGE_MAX_COMBINE_ARGS) |
| #include BOOST_PP_LOCAL_ITERATE() |
| |
| #define BOOST_RANGE_combined_get(z, n, data) get<n>(tuple) |
| |
| #define BOOST_RANGE_combined_unpack(z, n, data) \ |
| template<typename F, typename T> inline \ |
| typename combined_result<F,T>::type \ |
| unpack_(mpl::int_<n>, F f, const T& tuple) \ |
| { \ |
| return f(BOOST_PP_ENUM(n, BOOST_RANGE_combined_get, ~)); \ |
| } |
| |
| #define BOOST_PP_LOCAL_MACRO(n) BOOST_RANGE_combined_unpack(~,n,~) |
| #define BOOST_PP_LOCAL_LIMITS (BOOST_RANGE_MIN_COMBINE_ARGS, \ |
| BOOST_RANGE_MAX_COMBINE_ARGS) |
| #include BOOST_PP_LOCAL_ITERATE() |
| |
| } // namespace range_detail |
| |
| namespace range |
| { |
| |
| #define BOOST_RANGE_combined_seq(z, n, data) boost::data(BOOST_PP_CAT(r,n)) |
| |
| #ifdef BOOST_NO_CXX11_RVALUE_REFERENCES |
| |
| #include <boost/range/detail/combine_no_rvalue.hpp> |
| |
| #else // by using rvalue references we avoid requiring 2^n overloads. |
| |
| #include <boost/range/detail/combine_rvalue.hpp> |
| |
| #endif |
| |
| #define BOOST_PP_LOCAL_MACRO(n) BOOST_RANGE_combine(~,n,~) |
| #define BOOST_PP_LOCAL_LIMITS (BOOST_RANGE_MIN_COMBINE_ARGS, \ |
| BOOST_RANGE_MAX_COMBINE_ARGS) |
| #include BOOST_PP_LOCAL_ITERATE() |
| |
| } // namespace range |
| |
| using boost::range::combine; |
| |
| } // namespace boost |
| |
| #endif // include guard |
| |
| #undef BOOST_RANGE_combined_element |
| #undef BOOST_RANGE_combined_result |
| #undef BOOST_RANGE_combined_get |
| #undef BOOST_RANGE_combined_unpack |
| #undef BOOST_RANGE_combined_seq |
| #undef BOOST_RANGE_combined_exp_pred |
| #undef BOOST_RANGE_combined_exp_op |
| #undef BOOST_RANGE_combined_exp |
| #undef BOOST_RANGE_combined_bitset_pred |
| #undef BOOST_RANGE_combined_bitset_op |
| #undef BOOST_RANGE_combined_bitset |
| #undef BOOST_RANGE_combined_range_iterator |
| #undef BOOST_RANGE_combined_args |
| #undef BOOST_RANGE_combine_impl |
| #undef BOOST_RANGE_combine |