ceph/src/boost/libs/fusion/include/boost/fusion/algorithm/query/count.hpp

   1 /*=============================================================================
   2     Copyright (c) 2001-2011 Joel de Guzman
   3     Copyright (c) 2007
   4
   5     Distributed under the Boost Software License, Version 1.0. (See accompanying
   6     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   7 ==============================================================================*/
   8 #if !defined(BOOST_FUSION_COUNT_09162005_0150)
   9 #define BOOST_FUSION_COUNT_09162005_0150
  10
  11 #include <boost/fusion/support/config.hpp>
  12 #include <boost/fusion/algorithm/query/count_if.hpp>
  13 #include <boost/fusion/algorithm/query/detail/count.hpp>
  14 #include <boost/fusion/support/is_sequence.hpp>
  15 #include <boost/utility/enable_if.hpp>
  16
  17 namespace boost { namespace fusion
  18 {
  19     namespace result_of
  20     {
  21         template <typename Sequence, typename F>
  22         struct count
  23         {
  24             typedef int type;
  25         };
  26     }
  27
  28     template <typename Sequence, typename T>
  29     BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED
  30     inline typename
  31         enable_if<
  32             traits::is_sequence<Sequence>
  33           , int
  34         >::type
  35     count(Sequence const& seq, T const& x)
  36     {
  37         detail::count_compare<T> f(x);
  38         return fusion::count_if(seq, f);
  39     }
  40 }}
  41
  42 #endif
  43