#ifndef BOOST_SERIALIZATION_SHARED_PTR_HPP

#define BOOST_SERIALIZATION_SHARED_PTR_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

// shared_ptr.hpp: serialization for boost shared pointer



// (C) Copyright 2004 Robert Ramey and Martin Ecker

// 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 <map>



#include <boost/config.hpp>

#include <boost/mpl/integral_c.hpp>

#include <boost/mpl/integral_c_tag.hpp>



#include <boost/detail/workaround.hpp>

#include <boost/shared_ptr.hpp>



#include <boost/serialization/split_free.hpp>

#include <boost/serialization/nvp.hpp>

#include <boost/serialization/version.hpp>

#include <boost/serialization/tracking.hpp>



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

// shared_ptr serialization traits

// version 1 to distinguish from boost 1.32 version. Note: we can only do this

// for a template when the compiler supports partial template specialization



#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION

    namespace boost {

    namespace serialization{

        template<class T>

        struct version< ::boost::shared_ptr<T> > {

            typedef mpl::integral_c_tag tag;

            #if BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3206))

            typedef BOOST_DEDUCED_TYPENAME mpl::int_<1> type;

            #else

            typedef mpl::int_<1> type;

            #endif

            #if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x570))

            BOOST_STATIC_CONSTANT(unsigned int, value = 1);

            #else

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

            #endif

        };

        // don't track shared pointers

        template<class T>

        struct tracking_level< ::boost::shared_ptr<T> > { 

            typedef mpl::integral_c_tag tag;

            #if BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3206))

            typedef BOOST_DEDUCED_TYPENAME mpl::int_< ::boost::serialization::track_never> type;

            #else

            typedef mpl::int_< ::boost::serialization::track_never> type;

            #endif

            #if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x570))

            BOOST_STATIC_CONSTANT(int, value = ::boost::serialization::track_never);

            #else

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

            #endif

        };

    }}

    #define BOOST_SERIALIZATION_SHARED_PTR(T)

#else

    // define macro to let users of these compilers do this

    #define BOOST_SERIALIZATION_SHARED_PTR(T)                         \

    BOOST_CLASS_VERSION(                                              \

        ::boost::shared_ptr< T >,                                     \

        1                                                             \

    )                                                                 \

    BOOST_CLASS_TRACKING(                                             \

        ::boost::shared_ptr< T >,                                     \

        ::boost::serialization::track_never                           \

    )                                                                 \

    /**/

#endif



namespace boost {

namespace serialization{



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

// serialization for shared_ptr



template<class Archive, class T>

inline void save(

    Archive & ar,

    const boost::shared_ptr<T> &t,

    const unsigned int /* file_version */

){

    // The most common cause of trapping here would be serializing

    // something like shared_ptr<int>.  This occurs because int

    // is never tracked by default.  Wrap int in a trackable type

    BOOST_STATIC_ASSERT((tracking_level<T>::value != track_never));

    const T * t_ptr = t.get();

    ar << boost::serialization::make_nvp("px", t_ptr);

}



template<class Archive, class T>

inline void load(

    Archive & ar,

    boost::shared_ptr<T> &t,

    const unsigned int file_version

){

    // The most common cause of trapping here would be serializing

    // something like shared_ptr<int>.  This occurs because int

    // is never tracked by default.  Wrap int in a trackable type

    BOOST_STATIC_ASSERT((tracking_level<T>::value != track_never));

    T* r;

    #ifdef BOOST_SERIALIZATION_SHARED_PTR_132_HPP

    if(file_version < 1){

        //ar.register_type(static_cast<

        //    boost_132::detail::sp_counted_base_impl<T *, boost::checked_deleter<T> > *

        //>(NULL));

        ar.register_type(static_cast<

            boost_132::detail::sp_counted_base_impl<T *, boost::archive::detail::null_deleter > *

        >(NULL));

        boost_132::shared_ptr<T> sp;

        ar >> boost::serialization::make_nvp("px", sp.px);

        ar >> boost::serialization::make_nvp("pn", sp.pn);

        // got to keep the sps around so the sp.pns don't disappear

        ar.append(sp);

        r = sp.get();

    }

    else    

    #endif

    {

        ar >> boost::serialization::make_nvp("px", r);

    }

    ar.reset(t,r);

}



template<class Archive, class T>

inline void serialize(

    Archive & ar,

    boost::shared_ptr<T> &t,

    const unsigned int file_version

){

    // correct shared_ptr serialization depends upon object tracking

    // being used.

    BOOST_STATIC_ASSERT(

        boost::serialization::tracking_level<T>::value

        != boost::serialization::track_never

    );

    boost::serialization::split_free(ar, t, file_version);

}



} // namespace serialization

} // namespace boost



#endif // BOOST_SERIALIZATION_SHARED_PTR_HPP

