diff options
Diffstat (limited to 'boost/fusion/container/vector/detail/as_vector.hpp')
-rw-r--r-- | boost/fusion/container/vector/detail/as_vector.hpp | 53 |
1 files changed, 52 insertions, 1 deletions
diff --git a/boost/fusion/container/vector/detail/as_vector.hpp b/boost/fusion/container/vector/detail/as_vector.hpp index eaaac89638..e2f45b6a04 100644 --- a/boost/fusion/container/vector/detail/as_vector.hpp +++ b/boost/fusion/container/vector/detail/as_vector.hpp @@ -1,5 +1,5 @@ /*============================================================================= - Copyright (c) 2014 Kohei Takahashi + Copyright (c) 2014-2015 Kohei Takahashi 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) @@ -8,12 +8,63 @@ #define FUSION_AS_VECTOR_11052014_1801 #include <boost/fusion/support/config.hpp> +#include <boost/fusion/container/vector/detail/config.hpp> /////////////////////////////////////////////////////////////////////////////// // Without variadics, we will use the PP version /////////////////////////////////////////////////////////////////////////////// +#if !defined(BOOST_FUSION_HAS_VARIADIC_VECTOR) # include <boost/fusion/container/vector/detail/cpp03/as_vector.hpp> +#else +/////////////////////////////////////////////////////////////////////////////// +// C++11 interface +/////////////////////////////////////////////////////////////////////////////// +#include <boost/fusion/support/detail/index_sequence.hpp> +#include <boost/fusion/container/vector/vector.hpp> +#include <boost/fusion/iterator/value_of.hpp> +#include <boost/fusion/iterator/deref.hpp> +#include <boost/fusion/iterator/advance.hpp> +#include <cstddef> + +namespace boost { namespace fusion { namespace detail +{ +BOOST_FUSION_BARRIER_BEGIN + + template <typename Indices> + struct as_vector_impl; + + template <std::size_t ...Indices> + struct as_vector_impl<index_sequence<Indices...> > + { + template <typename Iterator> + struct apply + { + typedef vector< + typename result_of::value_of< + typename result_of::advance_c<Iterator, Indices>::type + >::type... + > type; + }; + + template <typename Iterator> + BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED + static typename apply<Iterator>::type + call(Iterator i) + { + typedef typename apply<Iterator>::type result; + return result(*advance_c<Indices>(i)...); + } + }; + + template <int size> + struct as_vector + : as_vector_impl<typename make_index_sequence<size>::type> {}; + +BOOST_FUSION_BARRIER_END +}}} + +#endif #endif |