1// Copyright 2022 Peter Dimov.
2// Distributed under the Boost Software License, Version 1.0.
3// https://www.boost.org/LICENSE_1_0.txt
4
5#ifndef BOOST_HASH_IS_DESCRIBED_CLASS_HPP_INCLUDED
6#define BOOST_HASH_IS_DESCRIBED_CLASS_HPP_INCLUDED
7
8#include <boost/type_traits/integral_constant.hpp>
9#include <boost/type_traits/is_union.hpp>
10#include <boost/describe/bases.hpp>
11#include <boost/describe/members.hpp>
12
13namespace boost
14{
15namespace container_hash
16{
17
18#if defined(BOOST_DESCRIBE_CXX11)
19
20template<class T> struct is_described_class: boost::integral_constant<bool,
21 describe::has_describe_bases<T>::value &&
22 describe::has_describe_members<T>::value &&
23 !boost::is_union<T>::value>
24{
25};
26
27#else
28
29template<class T> struct is_described_class: boost::false_type
30{
31};
32
33#endif
34
35} // namespace container_hash
36} // namespace boost
37
38#endif // #ifndef BOOST_HASH_IS_DESCRIBED_CLASS_HPP_INCLUDED
39