1 2 // (C) Copyright Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock 2000. 3 // (C) Copyright Eric Friedman 2002-2003. 4 // (C) Copyright Antony Polukhin 2013. 5 // Use, modification and distribution are subject to the Boost Software License, 6 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at 7 // http://www.boost.org/LICENSE_1_0.txt). 8 // 9 // See http://www.boost.org/libs/type_traits for most recent version including documentation. 10 11 #ifndef BOOST_TT_HAS_TRIVIAL_MOVE_ASSIGN_HPP_INCLUDED 12 #define BOOST_TT_HAS_TRIVIAL_MOVE_ASSIGN_HPP_INCLUDED 13 14 #include <boost/type_traits/config.hpp> 15 #include <boost/type_traits/is_pod.hpp> 16 #include <boost/type_traits/is_const.hpp> 17 #include <boost/type_traits/is_volatile.hpp> 18 #include <boost/type_traits/detail/ice_and.hpp> 19 #include <boost/type_traits/detail/ice_not.hpp> 20 21 // should be the last #include 22 #include <boost/type_traits/detail/bool_trait_def.hpp> 23 24 namespace boost { 25 26 namespace detail { 27 28 template <typename T> 29 struct has_trivial_move_assign_impl 30 { 31 #ifdef BOOST_HAS_TRIVIAL_MOVE_ASSIGN 32 BOOST_STATIC_CONSTANT(bool, value = (BOOST_HAS_TRIVIAL_MOVE_ASSIGN(T))); 33 #else 34 BOOST_STATIC_CONSTANT(bool, value = 35 (::boost::type_traits::ice_and< 36 ::boost::is_pod<T>::value, 37 ::boost::type_traits::ice_not< ::boost::is_const<T>::value >::value, 38 ::boost::type_traits::ice_not< ::boost::is_volatile<T>::value >::value 39 >::value)); 40 #endif 41 }; 42 43 } // namespace detail 44 45 BOOST_TT_AUX_BOOL_TRAIT_DEF1(has_trivial_move_assign,T,::boost::detail::has_trivial_move_assign_impl<T>::value) 46 BOOST_TT_AUX_BOOL_TRAIT_SPEC1(has_trivial_move_assign,void,false) 47 #ifndef BOOST_NO_CV_VOID_SPECIALIZATIONS 48 BOOST_TT_AUX_BOOL_TRAIT_SPEC1(has_trivial_move_assign,void const,false) 49 BOOST_TT_AUX_BOOL_TRAIT_SPEC1(has_trivial_move_assign,void const volatile,false) 50 BOOST_TT_AUX_BOOL_TRAIT_SPEC1(has_trivial_move_assign,void volatile,false) 51 #endif 52 53 } // namespace boost 54 55 #include <boost/type_traits/detail/bool_trait_undef.hpp> 56 57 #endif // BOOST_TT_HAS_TRIVIAL_MOVE_ASSIGN_HPP_INCLUDED 58