| /*============================================================================= |
| Copyright (c) 2001-2013 Joel de Guzman |
| |
| 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) |
| ==============================================================================*/ |
| #if !defined(FUSION_MOVE_01192013_2225) |
| #define FUSION_MOVE_01192013_2225 |
| |
| #include <boost/fusion/support/config.hpp> |
| #include <boost/fusion/sequence/intrinsic/begin.hpp> |
| #include <boost/fusion/sequence/intrinsic/end.hpp> |
| #include <boost/fusion/sequence/intrinsic/size.hpp> |
| #include <boost/fusion/sequence/comparison/detail/equal_to.hpp> |
| #include <boost/fusion/support/is_sequence.hpp> |
| #include <boost/config.hpp> |
| #include <boost/static_assert.hpp> |
| #include <boost/utility/enable_if.hpp> |
| #include <boost/mpl/and.hpp> |
| |
| #include <utility> // for std::move |
| |
| #if defined (BOOST_MSVC) |
| # pragma warning(push) |
| # pragma warning (disable: 4100) // unreferenced formal parameter |
| #endif |
| |
| namespace boost { namespace fusion |
| { |
| namespace detail |
| { |
| template <typename Seq1, typename Seq2> |
| struct sequence_move |
| { |
| typedef typename result_of::end<Seq1>::type end1_type; |
| typedef typename result_of::end<Seq2>::type end2_type; |
| |
| template <typename I1, typename I2> |
| BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED |
| static void |
| call(I1 const&, I2 const&, mpl::true_) |
| { |
| } |
| |
| template <typename I1, typename I2> |
| BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED |
| static void |
| call(I1 const& src, I2 const& dest, mpl::false_) |
| { |
| *dest = std::move(*src); |
| call(fusion::next(src), fusion::next(dest)); |
| } |
| |
| template <typename I1, typename I2> |
| BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED |
| static void |
| call(I1 const& src, I2 const& dest) |
| { |
| typename result_of::equal_to<I1, end1_type>::type eq; |
| return call(src, dest, eq); |
| } |
| }; |
| } |
| |
| namespace result_of |
| { |
| template <typename Seq1, typename Seq2> |
| struct move |
| : enable_if<mpl::and_< |
| traits::is_sequence<Seq1>, |
| traits::is_sequence<Seq2> |
| > > {}; |
| } |
| |
| template <typename Seq1, typename Seq2> |
| BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED |
| inline typename result_of::move<Seq1, Seq2>::type |
| move(Seq1&& src, Seq2& dest) |
| { |
| BOOST_STATIC_ASSERT( |
| result_of::size<Seq1>::value <= result_of::size<Seq2>::value); |
| |
| detail::sequence_move< |
| Seq1, Seq2>:: |
| call(fusion::begin(src), fusion::begin(dest)); |
| } |
| }} |
| |
| #if defined (BOOST_MSVC) |
| # pragma warning(pop) |
| #endif |
| |
| #endif |