#ifndef BOOST_SERIALIZATION_WRAPPER_HPP #define BOOST_SERIALIZATION_WRAPPER_HPP // (C) Copyright 2005-2006 Matthias Troyer // Use, modification and distribution is subject to 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) #include <boost/serialization/traits.hpp> #include <boost/type_traits/is_base_and_derived.hpp> #include <boost/mpl/eval_if.hpp> #include <boost/mpl/bool.hpp> namespace boost { namespace serialization { /// the base class for serialization wrappers /// /// wrappers need to be treated differently at various places in the serialization library, /// e.g. saving of non-const wrappers has to be possible. Since partial specialization // is not supported by all compilers, we derive all wrappers from wrapper_traits. template< class T, int Level = object_serializable, int Tracking = track_never, unsigned int Version = 0, class ETII = extended_type_info_impl< T > > struct wrapper_traits : public traits<T,Level,Tracking,Version,ETII,mpl::true_> {}; template<class T> struct is_wrapper_impl : boost::mpl::eval_if< boost::is_base_and_derived<basic_traits,T>, boost::mpl::true_, boost::mpl::false_ >::type {}; template<class T> struct is_wrapper { typedef BOOST_DEDUCED_TYPENAME is_wrapper_impl<const T>::type type; }; } // serialization } // boost // A macro to define that a class is a wrapper #define BOOST_CLASS_IS_WRAPPER(T) \ namespace boost { \ namespace serialization { \ template<> \ struct is_wrapper_impl<const T> : boost::mpl::true_ {}; \ } \ } \ /**/ #endif //BOOST_SERIALIZATION_WRAPPER_HPP