ceph/src/boost/boost/fusion/view/nview/detail/nview_impl.hpp

   1 /*=============================================================================
   2     Copyright (c) 2014 Kohei Takahashi
   3
   4     Distributed under the Boost Software License, Version 1.0. (See accompanying
   5     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6 ==============================================================================*/
   7 #ifndef BOOST_FUSION_NVIEW_IMPL_17122014_1948
   8 #define BOOST_FUSION_NVIEW_IMPL_17122014_1948
   9
  10 #include <boost/fusion/support/config.hpp>
  11 #include <boost/fusion/container/vector/detail/config.hpp>
  12
  13 ///////////////////////////////////////////////////////////////////////////////
  14 // Without variadics, we will use the PP version
  15 ///////////////////////////////////////////////////////////////////////////////
  16 #if !defined(BOOST_FUSION_HAS_VARIADIC_VECTOR)
  17 # include <boost/fusion/view/nview/detail/cpp03/nview_impl.hpp>
  18 #else
  19
  20 ///////////////////////////////////////////////////////////////////////////////
  21 // C++11 interface
  22 ///////////////////////////////////////////////////////////////////////////////
  23 #include <boost/fusion/container/vector.hpp>
  24 #include <boost/mpl/int.hpp>
  25
  26 namespace boost { namespace fusion
  27 {
  28     namespace result_of
  29     {
  30         template <typename Sequence, int ...I>
  31         struct as_nview
  32         {
  33             typedef vector<mpl::int_<I>...> index_type;
  34             typedef nview<Sequence, index_type> type;
  35         };
  36     }
  37
  38     template <int ...I, typename Sequence>
  39     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
  40     inline nview<Sequence, vector<mpl::int_<I>...> >
  41     as_nview(Sequence& s)
  42     {
  43         typedef vector<mpl::int_<I>...> index_type;
  44         return nview<Sequence, index_type>(s);
  45     }
  46 }}
  47
  48 #endif
  49 #endif
  50