

#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.



// $Source$

// $Date: 2005-08-25 12:27:28 -0400 (Thu, 25 Aug 2005) $

// $Revision: 30670 $



#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

