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- /*=============================================================================
- Copyright (c) 2001-2011 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_COPY_02162011_2308)
- #define FUSION_COPY_02162011_2308
- #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>
- #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_copy
- {
- 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 = *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 copy
- : 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::copy<Seq1 const, Seq2>::type
- copy(Seq1 const& src, Seq2& dest)
- {
- BOOST_STATIC_ASSERT(
- result_of::size<Seq1>::value <= result_of::size<Seq2>::value);
- detail::sequence_copy<
- Seq1 const, Seq2>::
- call(fusion::begin(src), fusion::begin(dest));
- }
- }}
- #if defined (BOOST_MSVC)
- # pragma warning(pop)
- #endif
- #endif
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