

#ifndef BOOST_MPL_ALWAYS_HPP_INCLUDED

#define BOOST_MPL_ALWAYS_HPP_INCLUDED



// Copyright Aleksey Gurtovoy 2001-2004

//

// 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: 2004-09-02 11:41:37 -0400 (Thu, 02 Sep 2004) $

// $Revision: 24874 $



#include <boost/mpl/aux_/preprocessor/def_params_tail.hpp>

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

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



namespace boost { namespace mpl {



template< typename Value > struct always

{

    template<

          typename T

        BOOST_MPL_PP_NESTED_DEF_PARAMS_TAIL(1, typename T, na)

        >

    struct apply

    {

        typedef Value type;

    };

};



BOOST_MPL_AUX_ARITY_SPEC(1, always)



}}



#endif // BOOST_MPL_ALWAYS_HPP_INCLUDED

