poly_collection/detail/is_equality_comparable.hpp

0001 /* Copyright 2017-2018 Joaquin M Lopez Munoz.
0002  * Distributed under the Boost Software License, Version 1.0.
0003  * (See accompanying file LICENSE_1_0.txt or copy at
0004  * http://www.boost.org/LICENSE_1_0.txt)
0005  *
0006  * See http://www.boost.org/libs/poly_collection for library home page.
0007  */
0008
0009 #ifndef BOOST_POLY_COLLECTION_DETAIL_IS_EQUALITY_COMPARABLE_HPP
0010 #define BOOST_POLY_COLLECTION_DETAIL_IS_EQUALITY_COMPARABLE_HPP
0011
0012 #if defined(_MSC_VER)
0013 #pragma once
0014 #endif
0015
0016 #include <boost/type_traits/has_equal_to.hpp>
0017 #include <type_traits>
0018
0019 namespace boost{
0020
0021 namespace poly_collection{
0022
0023 namespace detail{
0024
0025 template<typename T>
0026 using is_equality_comparable=std::integral_constant<
0027   bool,
0028   has_equal_to<T,T,bool>::value
0029 >;
0030
0031 } /* namespace poly_collection::detail */
0032
0033 } /* namespace poly_collection */
0034
0035 } /* namespace boost */
0036
0037 #endif