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#ifndef BOOST_MPL_AUX_YES_NO_HPP_INCLUDED

#define BOOST_MPL_AUX_YES_NO_HPP_INCLUDED


// Copyright Aleksey Gurtovoy 2000-2004

//

// 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.


// $Id$

// $Date$

// $Revision$


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

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

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

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



namespace boost { namespace mpl { namespace aux {

typedef char (&no_tag)[1];
typedef char (&yes_tag)[2];

template< bool C_ > struct yes_no_tag
{
    typedef no_tag type;
};

template<> struct yes_no_tag<true>
{
    typedef yes_tag type;
};


template< BOOST_MPL_AUX_NTTP_DECL(long, n) > struct weighted_tag
{
#if !BOOST_WORKAROUND(BOOST_MSVC, < 1300)

    typedef char (&type)[n];
#else

    char buf[n];
    typedef weighted_tag type;
#endif

};

#if defined(BOOST_MPL_CFG_NO_DEPENDENT_ARRAY_TYPES)

template<> struct weighted_tag<0>
{
    typedef char (&type)[1];
};
#endif


}}}

#endif // BOOST_MPL_AUX_YES_NO_HPP_INCLUDED