| /*============================================================================= |
| Copyright (c) 2001-2006 Joel de Guzman |
| Copyright (c) 2006 Dan Marsden |
| |
| 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_PP_IS_ITERATING |
| #if !defined(FUSION_ZIP_HPP_20060125_2058) |
| #define FUSION_ZIP_HPP_20060125_2058 |
| |
| #include <boost/fusion/view/zip_view.hpp> |
| #include <boost/fusion/adapted/mpl.hpp> |
| #include <boost/fusion/container/vector.hpp> |
| #include <boost/fusion/container/vector/convert.hpp> |
| #include <boost/type_traits/add_reference.hpp> |
| #include <boost/preprocessor/repetition/enum.hpp> |
| #include <boost/preprocessor/repetition/enum_params.hpp> |
| #include <boost/preprocessor/repetition/enum_binary_params.hpp> |
| #include <boost/preprocessor/repetition/repeat_from_to.hpp> |
| #include <boost/preprocessor/arithmetic/inc.hpp> |
| #include <boost/preprocessor/iteration/iterate.hpp> |
| #include <boost/mpl/vector.hpp> |
| #include <boost/mpl/transform.hpp> |
| #include <boost/mpl/placeholders.hpp> |
| |
| #if !defined(FUSION_MAX_ZIP_SEQUENCES) |
| #define FUSION_MAX_ZIP_SEQUENCES 10 |
| #endif |
| |
| namespace boost { namespace fusion { |
| |
| struct void_; |
| |
| namespace result_of |
| { |
| template<BOOST_PP_ENUM_PARAMS_WITH_A_DEFAULT(BOOST_PP_INC(FUSION_MAX_ZIP_SEQUENCES), typename T, fusion::void_)> |
| struct zip; |
| } |
| |
| #define BOOST_PP_FILENAME_1 \ |
| <boost/fusion/algorithm/transformation/zip.hpp> |
| #define BOOST_PP_ITERATION_LIMITS (2, FUSION_MAX_ZIP_SEQUENCES) |
| #include BOOST_PP_ITERATE() |
| |
| }} |
| |
| #endif |
| |
| #else |
| |
| #define ZIP_ITERATION BOOST_PP_ITERATION() |
| |
| namespace result_of |
| { |
| template< BOOST_PP_ENUM_PARAMS(ZIP_ITERATION, typename T) > |
| #if defined(BOOST_NO_PARTIAL_SPECIALIZATION_IMPLICIT_DEFAULT_ARGS) |
| #define TEXT(z, n, text) , text |
| struct zip< BOOST_PP_ENUM_PARAMS(ZIP_ITERATION, T) BOOST_PP_REPEAT_FROM_TO(BOOST_PP_DEC(ZIP_ITERATION), FUSION_MAX_ZIP_SEQUENCES, TEXT, void_) > |
| #undef TEXT |
| #else |
| struct zip< BOOST_PP_ENUM_PARAMS(ZIP_ITERATION, T) > |
| #endif |
| { |
| typedef mpl::vector< BOOST_PP_ENUM_PARAMS(ZIP_ITERATION, T) > sequences; |
| typedef typename mpl::transform<sequences, add_reference<mpl::_> >::type ref_params; |
| typedef zip_view<typename result_of::as_vector<ref_params>::type> type; |
| }; |
| } |
| |
| #define FUSION_REF_PARAM(z, n, data) const T ## n& |
| |
| template<BOOST_PP_ENUM_PARAMS(ZIP_ITERATION, typename T)> |
| inline typename result_of::zip<BOOST_PP_ENUM_PARAMS(ZIP_ITERATION, const T)>::type |
| zip(BOOST_PP_ENUM_BINARY_PARAMS(ZIP_ITERATION, T, const& t)) |
| { |
| fusion::vector<BOOST_PP_ENUM(ZIP_ITERATION, FUSION_REF_PARAM, _)> seqs( |
| BOOST_PP_ENUM_PARAMS(ZIP_ITERATION, t)); |
| return typename result_of::zip<BOOST_PP_ENUM_PARAMS(ZIP_ITERATION, const T)>::type( |
| seqs); |
| } |
| |
| #undef FUSION_REF_PARAM |
| #undef ZIP_ITERATION |
| |
| #endif |