boost/fusion/container/list/detail/equal_to_impl.hpp

   1 /*=============================================================================
   2     Copyright (c) 2001-2006 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_EQUAL_TO_IMPL_09172005_1120)
   8 #define FUSION_EQUAL_TO_IMPL_09172005_1120
   9
  10 #include <boost/type_traits/is_same.hpp>
  11 #include <boost/mpl/equal_to.hpp>
  12 #include <boost/mpl/and.hpp>
  13
  14 namespace boost { namespace fusion
  15 {
  16     struct cons_iterator_tag;
  17
  18     namespace extension
  19     {
  20         template <typename Tag>
  21         struct equal_to_impl;
  22
  23         template <>
  24         struct equal_to_impl<cons_iterator_tag>
  25         {
  26             template <typename I1, typename I2>
  27             struct apply
  28                 : is_same<
  29                     typename I1::identity
  30                   , typename I2::identity
  31                 >
  32             {
  33             };
  34         };
  35     }
  36 }}
  37
  38 #endif
  39