//  (C) Copyright John Maddock 2005.

//  Use, modification and distribution are 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)



#ifndef BOOST_TR1_MEMORY_HPP_INCLUDED

#  define BOOST_TR1_MEMORY_HPP_INCLUDED

#  include <boost/tr1/detail/config.hpp>

#  include <boost/detail/workaround.hpp>

#  include <memory>



#ifndef BOOST_HAS_TR1_SHARED_PTR



//

// This header can get included by boost/shared_ptr.hpp which leads

// to cyclic dependencies, the workaround is to forward declare all 

// the boost components, and then include the actual headers afterwards.

// This is fragile, but seems to work, and doesn't require modification

// of boost/shared_ptr.hpp.

//

namespace boost{



class bad_weak_ptr;

template<class T> class weak_ptr;

template<class T> class shared_ptr;

template<class T> void swap(weak_ptr<T> & a, weak_ptr<T> & b);

template<class T> void swap(shared_ptr<T> & a, shared_ptr<T> & b);

template<class T, class U> shared_ptr<T> static_pointer_cast(shared_ptr<U> const & r);

template<class T, class U> shared_ptr<T> dynamic_pointer_cast(shared_ptr<U> const & r);

template<class T, class U> shared_ptr<T> const_pointer_cast(shared_ptr<U> const & r);

template<class D, class T> D * get_deleter(shared_ptr<T> const & p);

template<class T> class enable_shared_from_this;



namespace detail{

class shared_count;

class weak_count;

}



}



namespace std{ namespace tr1{



   using ::boost::bad_weak_ptr;

   using ::boost::shared_ptr;

#if !BOOST_WORKAROUND(__BORLANDC__, < 0x0582)

   using ::boost::swap;

#endif

   using ::boost::static_pointer_cast;

   using ::boost::dynamic_pointer_cast;

   using ::boost::const_pointer_cast;

   using ::boost::get_deleter;

   using ::boost::weak_ptr;

   using ::boost::enable_shared_from_this;



} }

#include <boost/shared_ptr.hpp>

#include <boost/weak_ptr.hpp>

#include <boost/enable_shared_from_this.hpp>



#else



#  ifdef BOOST_HAS_INCLUDE_NEXT

#     include_next BOOST_TR1_HEADER(memory)

#  else

#     include <boost/tr1/detail/config_all.hpp>

#     include BOOST_TR1_STD_HEADER(BOOST_TR1_PATH(memory))

#  endif



#endif



#endif



