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+/*
+ * Distributed under the Boost Software License, Version 1.0.
+ * (See accompanying file LICENSE_1_0.txt or copy at
+ * http://www.boost.org/LICENSE_1_0.txt)
+ *
+ * Copyright (c) 2018 Andrey Semashev
+ */
+/*!
+ * \file atomic/detail/type_traits/is_trivially_default_constructible.hpp
+ *
+ * This header defines \c is_trivially_default_constructible type trait
+ */
+
+#ifndef BOOST_ATOMIC_DETAIL_TYPE_TRAITS_IS_TRIVIALLY_DEFAULT_CONSTRUCTIBLE_HPP_INCLUDED_
+#define BOOST_ATOMIC_DETAIL_TYPE_TRAITS_IS_TRIVIALLY_DEFAULT_CONSTRUCTIBLE_HPP_INCLUDED_
+
+#include <boost/atomic/detail/config.hpp>
+#if !defined(BOOST_NO_CXX11_HDR_TYPE_TRAITS)
+#include <type_traits>
+#else
+#include <boost/type_traits/has_trivial_constructor.hpp>
+#endif
+
+#ifdef BOOST_HAS_PRAGMA_ONCE
+#pragma once
+#endif
+
+namespace boost {
+namespace atomics {
+namespace detail {
+
+#if !defined(BOOST_NO_CXX11_HDR_TYPE_TRAITS)
+using std::is_trivially_default_constructible;
+#elif !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
+template< typename T >
+using is_trivially_default_constructible = boost::has_trivial_constructor< T >;
+#else
+template< typename T >
+struct is_trivially_default_constructible : public boost::has_trivial_constructor< T > {};
+#endif
+
+} // namespace detail
+} // namespace atomics
+} // namespace boost
+
+#endif // BOOST_ATOMIC_DETAIL_TYPE_TRAITS_IS_TRIVIALLY_DEFAULT_CONSTRUCTIBLE_HPP_INCLUDED_