#ifndef BOOST_SERIALIZATION_TRACKING_HPP

#define BOOST_SERIALIZATION_TRACKING_HPP

// MS compatible compilers support #pragma once

#if defined(_MSC_VER) && (_MSC_VER >= 1020)

# pragma once

#endif

/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8

// tracking.hpp:

// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 

// 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)

//  See http://www.boost.org for updates, documentation, and revision history.

#include <boost/config.hpp>

#include <boost/static_assert.hpp>

#include <boost/mpl/eval_if.hpp>

#include <boost/mpl/identity.hpp>

#include <boost/mpl/int.hpp>

#include <boost/mpl/equal_to.hpp>

#include <boost/mpl/greater.hpp>

#include <boost/mpl/integral_c_tag.hpp>

#include <boost/type_traits/is_base_and_derived.hpp>

#include <boost/type_traits/is_pointer.hpp>

#include <boost/serialization/level.hpp>

#include <boost/serialization/tracking_enum.hpp>

//#include <boost/serialization/traits.hpp>

namespace boost {

namespace serialization {

struct basic_traits;

// default tracking level

template<class T>

struct tracking_level {

    template<class U>

    struct traits_class_tracking {

        typedef BOOST_DEDUCED_TYPENAME U::tracking type;

    };

    typedef mpl::integral_c_tag tag;

    // note: at least one compiler complained w/o the full qualification

    // on basic traits below

    typedef

        BOOST_DEDUCED_TYPENAME mpl::eval_if<

            is_base_and_derived<boost::serialization::basic_traits, T>,

            traits_class_tracking<T>,

        //else

        BOOST_DEDUCED_TYPENAME mpl::eval_if<

            is_pointer<T>,

            // pointers are not tracked by default

            mpl::int_<track_never>,

        //else

        BOOST_DEDUCED_TYPENAME mpl::eval_if<

            // for primitives

            BOOST_DEDUCED_TYPENAME mpl::equal_to<

                implementation_level<T>,

                mpl::int_<primitive_type> 

            >,

            // is never

            mpl::int_<track_never>,

            // otherwise its selective

            mpl::int_<track_selectivly>

    >  > >::type type;

    BOOST_STATIC_CONSTANT(int, value = tracking_level::type::value);

};

template<class T, enum tracking_type L>

inline bool operator>=(tracking_level<T> t, enum tracking_type l)

{

    return t.value >= (int)l;

}

} // namespace serialization

} // namespace boost

// The STATIC_ASSERT is prevents one from setting tracking for a primitive type.  

// This almost HAS to be an error.  Doing this will effect serialization of all 

// char's in your program which is almost certainly what you don't want to do.  

// If you want to track all instances of a given primitive type, You'll have to 

// wrap it in your own type so its not a primitive anymore.  Then it will compile

// without problem.

#define BOOST_CLASS_TRACKING(T, E)           \

namespace boost {                            \

namespace serialization {                    \

template<>                                   \

struct tracking_level< T >                   \

{                                            \

    typedef mpl::integral_c_tag tag;         \

    typedef mpl::int_< E> type;              \

    BOOST_STATIC_CONSTANT(                   \

        int,                                 \

        value = tracking_level::type::value  \

    );                                       \

    /* tracking for a class  */              \

    BOOST_STATIC_ASSERT((                    \

        mpl::greater<                        \

            /* that is a prmitive */         \

            implementation_level< T >,       \

            mpl::int_<primitive_type>        \

        >::value                             \

    ));                                      \

};                                           \

}}

#endif // BOOST_SERIALIZATION_TRACKING_HPP