//  (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_STD_HEADER(BOOST_TR1_PATH(memory))

 #  endif

 #endif

 #endif