text: 
  #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/mpl/set/aux_/empty_impl.hpp,v $
  // $Date: 2007/10/29 07:32:42 $
  // $Revision: 1.1.1.1 $
  
  #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
  