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//---------------------------------------------------------------------------// // Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com> // // 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 // // See http://boostorg.github.com/compute for more information. //---------------------------------------------------------------------------// #ifndef BOOST_COMPUTE_DETAIL_MPL_VECTOR_TO_TUPLE_HPP #define BOOST_COMPUTE_DETAIL_MPL_VECTOR_TO_TUPLE_HPP #include <boost/mpl/copy.hpp> #include <boost/mpl/vector.hpp> #include <boost/tuple/tuple.hpp> #include <boost/fusion/include/mpl.hpp> #include <boost/fusion/adapted/boost_tuple.hpp> #include <boost/preprocessor/repetition.hpp> #include <boost/compute/config.hpp> namespace boost { namespace compute { namespace detail { namespace mpl = boost::mpl; template<class Vector, size_t N> struct mpl_vector_to_tuple_impl; #define BOOST_COMPUTE_PRINT_ELEM(z, n, unused) \ typename mpl::at_c<Vector, n>::type #define BOOST_COMPUTE_VEC2TUP(z, n, unused) \ template<class Vector> \ struct mpl_vector_to_tuple_impl<Vector, n> \ { \ typedef typename \ boost::tuple< \ BOOST_PP_ENUM(n, BOOST_COMPUTE_PRINT_ELEM, ~) \ > type; \ }; BOOST_PP_REPEAT_FROM_TO(1, BOOST_COMPUTE_MAX_ARITY, BOOST_COMPUTE_VEC2TUP, ~) #undef BOOST_COMPUTE_VEC2TUP #undef BOOST_COMPUTE_PRINT_ELEM // meta-function which converts a mpl::vector to a boost::tuple template<class Vector> struct mpl_vector_to_tuple { typedef typename mpl_vector_to_tuple_impl< Vector, mpl::size<Vector>::value >::type type; }; } // end detail namespace } // end compute namespace } // end boost namespace #endif // BOOST_COMPUTE_DETAIL_MPL_VECTOR_TO_TUPLE_HPP
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