ceph/src/boost/boost/poly_collection/detail/is_equality_comparable.hpp

   1 /* Copyright 2017-2018 Joaquin M Lopez Munoz.
   2  * Distributed under the Boost Software License, Version 1.0.
   3  * (See accompanying file LICENSE_1_0.txt or copy at
   4  * http://www.boost.org/LICENSE_1_0.txt)
   5  *
   6  * See http://www.boost.org/libs/poly_collection for library home page.
   7  */
   8
   9 #ifndef BOOST_POLY_COLLECTION_DETAIL_IS_EQUALITY_COMPARABLE_HPP
  10 #define BOOST_POLY_COLLECTION_DETAIL_IS_EQUALITY_COMPARABLE_HPP
  11
  12 #if defined(_MSC_VER)
  13 #pragma once
  14 #endif
  15
  16 #include <boost/type_traits/has_equal_to.hpp>
  17 #include <type_traits>
  18
  19 namespace boost{
  20
  21 namespace poly_collection{
  22
  23 namespace detail{
  24
  25 template<typename T>
  26 using is_equality_comparable=std::integral_constant<
  27   bool,
  28   has_equal_to<T,T,bool>::value
  29 >;
  30
  31 } /* namespace poly_collection::detail */
  32
  33 } /* namespace poly_collection */
  34
  35 } /* namespace boost */
  36
  37 #endif