// (C) Copyright Eric Friedman 2002-2003. // 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) // // See http://www.boost.org for most recent version including documentation. #ifndef BOOST_VARIANT_DETAIL_HAS_NOTHROW_MOVE_HPP_INCLUDED #define BOOST_VARIANT_DETAIL_HAS_NOTHROW_MOVE_HPP_INCLUDED #include "boost/config.hpp" // for STATIC_CONSTANT #include "boost/variant/detail/has_trivial_move.hpp" #include "boost/type_traits/has_nothrow_copy.hpp" #include "boost/type_traits/has_nothrow_assign.hpp" #include "boost/mpl/and.hpp" #include "boost/mpl/or.hpp" // should be the last #include #include "boost/variant/detail/bool_trait_def.hpp" namespace boost { namespace detail { namespace variant { // TRAIT: has_nothrow_move template <typename T> struct has_nothrow_move_impl { BOOST_STATIC_CONSTANT( bool, value = ( ::boost::mpl::or_< has_trivial_move<T> , ::boost::mpl::and_< has_nothrow_copy<T> , has_nothrow_assign<T> > >::type::value ) ); }; BOOST_VARIANT_TT_AUX_BOOL_TRAIT_DEF1( has_nothrow_move , T , (::boost::detail::variant::has_nothrow_move_impl<T>::value) ) // TRAIT: has_nothrow_move_constructor template <typename T> struct has_nothrow_move_constructor_impl { BOOST_STATIC_CONSTANT( bool, value = ( ::boost::mpl::or_< has_nothrow_move<T> , has_trivial_move_constructor<T> , has_nothrow_copy<T> >::type::value ) ); }; BOOST_VARIANT_TT_AUX_BOOL_TRAIT_DEF1( has_nothrow_move_constructor , T , (::boost::detail::variant::has_nothrow_move_constructor_impl<T>::value) ) // TRAIT: has_nothrow_move_assign template <typename T> struct has_nothrow_move_assign_impl { BOOST_STATIC_CONSTANT( bool, value = ( ::boost::mpl::or_< has_nothrow_move<T> , has_trivial_move_assign<T> , has_nothrow_assign<T> >::type::value ) ); }; BOOST_VARIANT_TT_AUX_BOOL_TRAIT_DEF1( has_nothrow_move_assign , T , (::boost::detail::variant::has_nothrow_move_assign_impl<T>::value) ) }} // namespace detail::variant BOOST_VARIANT_TT_AUX_TRAIT_SUFFIX(1,::boost::detail::variant::has_nothrow_move) BOOST_VARIANT_TT_AUX_TRAIT_SUFFIX(1,::boost::detail::variant::has_nothrow_move_constructor) BOOST_VARIANT_TT_AUX_TRAIT_SUFFIX(1,::boost::detail::variant::has_nothrow_move_assign) } // namespace boost #include "boost/variant/detail/bool_trait_undef.hpp" #endif // BOOST_VARIANT_DETAIL_HAS_NOTHROW_MOVE_HPP_INCLUDED