1 /*
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  * Copyright (c) 2017 Andrey Semashev
7  */
8 /*!
9  * \file   atomic/detail/type_traits/is_integral.hpp
10  *
11  * This header defines \c is_integral type trait
12  */
13 
14 #ifndef BOOST_ATOMIC_DETAIL_TYPE_TRAITS_IS_INTEGRAL_HPP_INCLUDED_
15 #define BOOST_ATOMIC_DETAIL_TYPE_TRAITS_IS_INTEGRAL_HPP_INCLUDED_
16 
17 #include <boost/atomic/detail/config.hpp>
18 // Some versions of libstdc++ don't consider __int128 an integral type. Use Boost.TypeTraits because of that.
19 #if !defined(BOOST_ATOMIC_DETAIL_NO_CXX11_BASIC_HDR_TYPE_TRAITS) && !defined(BOOST_HAS_INT128)
20 #include <type_traits>
21 #else
22 #include <boost/type_traits/is_integral.hpp>
23 #endif
24 
25 #ifdef BOOST_HAS_PRAGMA_ONCE
26 #pragma once
27 #endif
28 
29 namespace boost {
30 namespace atomics {
31 namespace detail {
32 
33 #if !defined(BOOST_ATOMIC_DETAIL_NO_CXX11_BASIC_HDR_TYPE_TRAITS) && !defined(BOOST_HAS_INT128)
34 using std::is_integral;
35 #else
36 using boost::is_integral;
37 #endif
38 
39 } // namespace detail
40 } // namespace atomics
41 } // namespace boost
42 
43 #endif // BOOST_ATOMIC_DETAIL_TYPE_TRAITS_IS_INTEGRAL_HPP_INCLUDED_
44