#ifndef BOOST_MPL_SET_AUX_EMPTY_IMPL_HPP_INCLUDED

 #define BOOST_MPL_SET_AUX_EMPTY_IMPL_HPP_INCLUDED

 // Copyright Aleksey Gurtovoy 2003-2004

 //

 // Distributed under 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/libs/mpl for documentation.

 // $Source: /cvsroot/boost/boost/boost/mpl/set/aux_/empty_impl.hpp,v $

 // $Date: 2004/09/02 15:41:02 $

 // $Revision: 1.2 $

 #include <boost/mpl/empty_fwd.hpp>

 #include <boost/mpl/not.hpp>

 #include <boost/mpl/set/aux_/tag.hpp>

 namespace boost { namespace mpl {

 template<>

 struct empty_impl< aux::set_tag >

 {

     template< typename Set > struct apply

         : not_< typename Set::size >

     {

     };

 };

 }}

 #endif // BOOST_MPL_SET_AUX_EMPTY_IMPL_HPP_INCLUDED