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| 2 | // (C) Copyright Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock 2000. |
| 3 | // Use, modification and distribution are subject to the Boost Software License, |
| 4 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
| 5 | // http://www.boost.org/LICENSE_1_0.txt). |
| 6 | // |
| 7 | // See http://www.boost.org/libs/type_traits for most recent version including documentation. |
| 8 | |
| 9 | #ifndef BOOST_TT_IS_STATELESS_HPP_INCLUDED |
| 10 | #define BOOST_TT_IS_STATELESS_HPP_INCLUDED |
| 11 | |
| 12 | #include <boost/type_traits/has_trivial_constructor.hpp> |
| 13 | #include <boost/type_traits/has_trivial_copy.hpp> |
| 14 | #include <boost/type_traits/has_trivial_destructor.hpp> |
| 15 | #include <boost/type_traits/is_class.hpp> |
| 16 | #include <boost/type_traits/is_empty.hpp> |
| 17 | #include <boost/config.hpp> |
| 18 | |
| 19 | namespace boost { |
| 20 | |
| 21 | template <typename T> |
| 22 | struct is_stateless |
| 23 | : public integral_constant<bool, |
| 24 | (::boost::has_trivial_constructor<T>::value |
| 25 | && ::boost::has_trivial_copy<T>::value |
| 26 | && ::boost::has_trivial_destructor<T>::value |
| 27 | && ::boost::is_class<T>::value |
| 28 | && ::boost::is_empty<T>::value)> |
| 29 | {}; |
| 30 | |
| 31 | } // namespace boost |
| 32 | |
| 33 | #endif // BOOST_TT_IS_STATELESS_HPP_INCLUDED |
| 34 |