//  (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_FUNCTIONAL_HPP_INCLUDED

 #  define BOOST_TR1_FUNCTIONAL_HPP_INCLUDED

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

 #  include <functional>

 #if defined(BOOST_HAS_TR1_REFERENCE_WRAPPER) \

    || defined(BOOST_HAS_TR1_RESULT_OF)\

    || defined(BOOST_HAS_TR1_MEM_FN)\

    || defined(BOOST_HAS_TR1_BIND)\

    || defined(BOOST_HAS_TR1_FUNCTION)\

    || defined(BOOST_HAS_TR1_HASH)

 #  ifdef BOOST_HAS_INCLUDE_NEXT

 #     include_next BOOST_TR1_HEADER(functional)

 #  else

 #     include BOOST_TR1_STD_HEADER(BOOST_TR1_PATH(functional))

 #  endif

 #endif

 #ifndef BOOST_HAS_TR1_REFERENCE_WRAPPER

 #include <boost/ref.hpp>

 namespace std{ namespace tr1{

    using ::boost::reference_wrapper;

    using ::boost::ref;

    using ::boost::cref;

 } }

 #endif  // BOOST_HAS_TR1_REFERENCE_WRAPPER

 #if !defined(BOOST_HAS_TR1_RESULT_OF)\

    && !defined(BOOST_NO_SFINAE) && \

    !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)

 //

 // we can only actually include result_of.hpp if the compiler

 // really does support it, otherwise we just get endless errors...

 //

 #include <boost/utility/result_of.hpp>

 namespace std{ namespace tr1{

    using ::boost::result_of;

 } }

 #endif // BOOST_HAS_TR1_RESULT_OF

 #ifndef BOOST_HAS_TR1_MEM_FN

 // mem_fn:

 #include <boost/mem_fn.hpp>

 namespace std{ namespace tr1{

 using boost::mem_fn;

 } }

 #endif // BOOST_HAS_TR1_MEM_FN

 #ifndef BOOST_HAS_TR1_BIND

 // Bind:

 #include <boost/bind.hpp>

 namespace std{ namespace tr1{

    // These aren't supported in this release but are in mainline cvs:

    // using ::boost::is_bind_expression;

    // using ::boost::is_placeholder;

    using ::boost::bind;

    namespace placeholders {

 #ifndef BOOST_BIND_NO_PLACEHOLDERS

       using ::_1;

       using ::_2;

       using ::_3;

       using ::_4;

       using ::_5;

       using ::_6;

       using ::_7;

       using ::_8;

       using ::_9;

 #endif

    } // placeholders

 } }

 #endif

 #ifndef BOOST_HAS_TR1_FUNCTION

 // polymorphic function object wrappers:

 #include <boost/function.hpp>

 #include <boost/detail/workaround.hpp>

 #if !BOOST_WORKAROUND(__BORLANDC__, < 0x582) \

     && !BOOST_WORKAROUND(BOOST_MSVC, < 1310) \

     && !defined(BOOST_FUNCTION_NO_FUNCTION_TYPE_SYNTAX)

 namespace std{ namespace tr1{

    using ::boost::bad_function_call;

    using ::boost::function;

    using ::boost::swap;

 }}

 #endif

 #endif // BOOST_HAS_TR1_FUNCTION

 #ifndef BOOST_HAS_TR1_HASH

 //

 // This header can get included by boost/hash.hpp

 // leading to cyclic dependencies.  As a workaround

 // we forward declare boost::hash and include

 // the actual header later.

 //

 namespace boost{

 template <class T> struct hash;

 }

 namespace std{ namespace tr1{

    using ::boost::hash;

 }}

 #include <boost/functional/hash.hpp>

 #endif

 #endif