// Copyright (C) 2003, Fernando Luis Cacciola Carballal.

//

// 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)

//

// See http://www.boost.org/lib/optional for documentation.

//

// You are welcome to contact the author at:

//  fernando_cacciola@hotmail.com

//

#ifndef BOOST_DETAIL_NONE_T_17SEP2003_HPP

#define BOOST_DETAIL_NONE_T_17SEP2003_HPP

namespace boost {

namespace detail {

struct none_helper{};

typedef int none_helper::*none_t ;

} // namespace detail

} // namespace boost

#endif