wrapper.hpp

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#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_fwd.hpp>
 
namespace boost { namespace serialization {
 
// 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 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