#ifndef BOOST_MPL_SET_AUX_SET0_HPP_INCLUDED

#define BOOST_MPL_SET_AUX_SET0_HPP_INCLUDED

// Copyright Aleksey Gurtovoy 2003-2004

// Copyright David Abrahams 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_/set0.hpp,v $

// $Date: 2005/06/18 22:03:08 $

// $Revision: 1.8 $

#include <boost/mpl/long.hpp>

#include <boost/mpl/void.hpp>

#include <boost/mpl/aux_/na.hpp>

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

#include <boost/mpl/aux_/yes_no.hpp>

#include <boost/mpl/aux_/overload_names.hpp>

#include <boost/mpl/aux_/config/operators.hpp>

#include <boost/preprocessor/cat.hpp>

namespace boost { namespace mpl {

#if defined(BOOST_MPL_CFG_USE_OPERATORS_OVERLOADING)

#   define BOOST_MPL_AUX_SET0_OVERLOAD(R, f, X, T) \

    friend R BOOST_PP_CAT(BOOST_MPL_AUX_OVERLOAD_,f)(X const&, T) \

/**/

#   define BOOST_MPL_AUX_SET_OVERLOAD(R, f, X, T) \

    BOOST_MPL_AUX_SET0_OVERLOAD(R, f, X, T) \

/**/

#else

#   define BOOST_MPL_AUX_SET0_OVERLOAD(R, f, X, T) \

    static R BOOST_PP_CAT(BOOST_MPL_AUX_OVERLOAD_,f)(X const&, T) \

/**/

#   define BOOST_MPL_AUX_SET_OVERLOAD(R, f, X, T) \

    BOOST_MPL_AUX_SET0_OVERLOAD(R, f, X, T); \

    using Base::BOOST_PP_CAT(BOOST_MPL_AUX_OVERLOAD_,f) \

/**/

#endif

template< typename Dummy = na > struct set0

{

    typedef set0<>          item_;

    typedef aux::set_tag    tag;

    typedef void_           last_masked_;

    typedef void_           item_type_;

    typedef item_type_      type;

    typedef long_<0>        size;

    typedef long_<1>        order;

    BOOST_MPL_AUX_SET0_OVERLOAD( aux::no_tag, ORDER_BY_KEY, set0<>, void const volatile* );

    BOOST_MPL_AUX_SET0_OVERLOAD( aux::yes_tag, IS_MASKED, set0<>, void const volatile* );

};

}}

#endif // BOOST_MPL_SET_AUX_SET0_HPP_INCLUDED