#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: /cvsroot/boost/boost/boost/mpl/always.hpp,v $

 // $Date: 2004/09/02 15:40:41 $

 // $Revision: 1.5 $

 #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