47 lines
1.0 KiB
C++
47 lines
1.0 KiB
C++
/* Copyright 2016-2017 Joaquin M Lopez Munoz.
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* Distributed under the Boost Software License, Version 1.0.
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* (See accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*
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* See http://www.boost.org/libs/poly_collection for library home page.
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*/
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#ifndef BOOST_POLY_COLLECTION_DETAIL_IS_NOTHROW_EQ_COMPARABLE_HPP
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#define BOOST_POLY_COLLECTION_DETAIL_IS_NOTHROW_EQ_COMPARABLE_HPP
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#if defined(_MSC_VER)
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#pragma once
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#endif
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#include <boost/poly_collection/detail/is_equality_comparable.hpp>
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#include <type_traits>
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#include <utility>
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namespace boost{
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namespace poly_collection{
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namespace detail{
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template<typename T,typename=void>
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struct is_nothrow_equality_comparable:std::false_type{};
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template<typename T>
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struct is_nothrow_equality_comparable<
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T,
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typename std::enable_if<
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is_equality_comparable<T>::value
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>::type
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>:std::integral_constant<
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bool,
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noexcept(std::declval<T>()==std::declval<T>())
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>{};
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} /* namespace poly_collection::detail */
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} /* namespace poly_collection */
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} /* namespace boost */
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#endif
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