inference-engine/thirdparty/clDNN/common/boost/1.64.0/include/boost-1_64/boost/fusion/sequence/intrinsic/at.hpp

   1 /*=============================================================================
   2     Copyright (c) 2001-2011 Joel de Guzman
   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 #if !defined(FUSION_AT_05042005_0722)
   8 #define FUSION_AT_05042005_0722
   9
  10 #include <boost/fusion/support/config.hpp>
  11 #include <boost/mpl/int.hpp>
  12 #include <boost/mpl/if.hpp>
  13 #include <boost/mpl/or.hpp>
  14 #include <boost/mpl/less.hpp>
  15 #include <boost/mpl/empty_base.hpp>
  16 #include <boost/type_traits/is_const.hpp>
  17 #include <boost/fusion/sequence/intrinsic_fwd.hpp>
  18 #include <boost/fusion/support/tag_of.hpp>
  19 #include <boost/fusion/support/category_of.hpp>
  20
  21 namespace boost { namespace fusion
  22 {
  23     // Special tags:
  24     struct sequence_facade_tag;
  25     struct boost_tuple_tag; // boost::tuples::tuple tag
  26     struct boost_array_tag; // boost::array tag
  27     struct mpl_sequence_tag; // mpl sequence tag
  28     struct std_pair_tag; // std::pair tag
  29     struct std_tuple_tag; // std::tuple tag
  30
  31     namespace extension
  32     {
  33         template <typename Tag>
  34         struct at_impl
  35         {
  36             template <typename Sequence, typename N>
  37             struct apply;
  38         };
  39
  40         template <>
  41         struct at_impl<sequence_facade_tag>
  42         {
  43             template <typename Sequence, typename N>
  44             struct apply : Sequence::template at<Sequence, N> {};
  45         };
  46
  47         template <>
  48         struct at_impl<boost_tuple_tag>;
  49
  50         template <>
  51         struct at_impl<boost_array_tag>;
  52
  53         template <>
  54         struct at_impl<mpl_sequence_tag>;
  55
  56         template <>
  57         struct at_impl<std_pair_tag>;
  58
  59         template <>
  60         struct at_impl<std_tuple_tag>;
  61     }
  62
  63     namespace detail
  64     {
  65         template <typename Sequence, typename N, typename Tag>
  66         struct at_impl
  67             : mpl::if_<
  68                   mpl::or_<
  69                       mpl::less<N, typename extension::size_impl<Tag>::template apply<Sequence>::type>
  70                     , traits::is_unbounded<Sequence>
  71                   >
  72                 , typename extension::at_impl<Tag>::template apply<Sequence, N>
  73                 , mpl::empty_base
  74               >::type
  75         {};
  76     }
  77
  78     namespace result_of
  79     {
  80         template <typename Sequence, typename N>
  81         struct at
  82             : detail::at_impl<Sequence, N, typename detail::tag_of<Sequence>::type>
  83         {};
  84
  85         template <typename Sequence, int N>
  86         struct at_c
  87             : at<Sequence, mpl::int_<N> >
  88         {};
  89     }
  90
  91
  92     template <typename N, typename Sequence>
  93     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
  94     inline typename
  95         lazy_disable_if<
  96             is_const<Sequence>
  97           , result_of::at<Sequence, N>
  98         >::type
  99     at(Sequence& seq)
 100     {
 101         return result_of::at<Sequence, N>::call(seq);
 102     }
 103
 104     template <typename N, typename Sequence>
 105     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
 106     inline typename result_of::at<Sequence const, N>::type
 107     at(Sequence const& seq)
 108     {
 109         return result_of::at<Sequence const, N>::call(seq);
 110     }
 111
 112     template <int N, typename Sequence>
 113     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
 114     inline typename
 115         lazy_disable_if<
 116             is_const<Sequence>
 117           , result_of::at_c<Sequence, N>
 118         >::type
 119     at_c(Sequence& seq)
 120     {
 121         return fusion::at<mpl::int_<N> >(seq);
 122     }
 123
 124     template <int N, typename Sequence>
 125     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
 126     inline typename result_of::at_c<Sequence const, N>::type
 127     at_c(Sequence const& seq)
 128     {
 129         return fusion::at<mpl::int_<N> >(seq);
 130     }
 131 }}
 132
 133 #endif
 134