projects / ceph.git / blame
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|---|---|---|
| 7c673cae FG |
1 | //---------------------------------------------------------------------------// |
| 2 | // Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com> | |
| 3 | // | |
| 4 | // Distributed under the Boost Software License, Version 1.0 | |
| 5 | // See accompanying file LICENSE_1_0.txt or copy at | |
| 6 | // http://www.boost.org/LICENSE_1_0.txt | |
| 7 | // | |
| 8 | // See http://boostorg.github.com/compute for more information. | |
| 9 | //---------------------------------------------------------------------------// | |
| 10 | ||
| 11 | #ifndef BOOST_COMPUTE_DETAIL_MPL_VECTOR_TO_TUPLE_HPP | |
| 12 | #define BOOST_COMPUTE_DETAIL_MPL_VECTOR_TO_TUPLE_HPP | |
| 13 | ||
| 14 | #include <boost/mpl/copy.hpp> | |
| 15 | #include <boost/mpl/vector.hpp> | |
| 16 | #include <boost/tuple/tuple.hpp> | |
| 17 | #include <boost/fusion/include/mpl.hpp> | |
| 18 | #include <boost/fusion/adapted/boost_tuple.hpp> | |
| 19 | #include <boost/preprocessor/repetition.hpp> | |
| 20 | ||
| 21 | #include <boost/compute/config.hpp> | |
| 22 | ||
| 23 | namespace boost { | |
| 24 | namespace compute { | |
| 25 | namespace detail { | |
| 26 | ||
| 27 | namespace mpl = boost::mpl; | |
| 28 | ||
| 29 | template<class Vector, size_t N> | |
| 30 | struct mpl_vector_to_tuple_impl; | |
| 31 | ||
| 32 | #define BOOST_COMPUTE_PRINT_ELEM(z, n, unused) \ | |
| 33 | typename mpl::at_c<Vector, n>::type | |
| 34 | ||
| 35 | #define BOOST_COMPUTE_VEC2TUP(z, n, unused) \ | |
| 36 | template<class Vector> \ | |
| 37 | struct mpl_vector_to_tuple_impl<Vector, n> \ | |
| 38 | { \ | |
| 39 | typedef typename \ | |
| 40 | boost::tuple< \ | |
| 41 | BOOST_PP_ENUM(n, BOOST_COMPUTE_PRINT_ELEM, ~) \ | |
| 42 | > type; \ | |
| 43 | }; | |
| 44 | ||
| 45 | BOOST_PP_REPEAT_FROM_TO(1, BOOST_COMPUTE_MAX_ARITY, BOOST_COMPUTE_VEC2TUP, ~) | |
| 46 | ||
| 47 | #undef BOOST_COMPUTE_VEC2TUP | |
| 48 | #undef BOOST_COMPUTE_PRINT_ELEM | |
| 49 | ||
| 50 | // meta-function which converts a mpl::vector to a boost::tuple | |
| 51 | template<class Vector> | |
| 52 | struct mpl_vector_to_tuple | |
| 53 | { | |
| 54 | typedef typename | |
| 55 | mpl_vector_to_tuple_impl< | |
| 56 | Vector, | |
| 57 | mpl::size<Vector>::value | |
| 58 | >::type type; | |
| 59 | }; | |
| 60 | ||
| 61 | } // end detail namespace | |
| 62 | } // end compute namespace | |
| 63 | } // end boost namespace | |
| 64 | ||
| 65 | #endif // BOOST_COMPUTE_DETAIL_MPL_VECTOR_TO_TUPLE_HPP |