// Copyright Daniel Wallin, David Abrahams 2005. Use, modification and

// distribution is 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_PARAMETER_VOID_050329_HPP

#define BOOST_PARAMETER_VOID_050329_HPP

namespace boost { namespace parameter { 

// A placemarker for "no argument passed."

// MAINTAINER NOTE: Do not make this into a metafunction

struct void_ {}; 

namespace aux 

{

  inline void_& void_reference()

  {

      static void_ instance;

      return instance;

  }

} // namespace aux

}} // namespace boost::parameter

#endif // BOOST_PARAMETER_VOID_050329_HPP