williamr@2: 
williamr@2: #ifndef BOOST_MPL_ALWAYS_HPP_INCLUDED
williamr@2: #define BOOST_MPL_ALWAYS_HPP_INCLUDED
williamr@2: 
williamr@2: // Copyright Aleksey Gurtovoy 2001-2004
williamr@2: //
williamr@2: // Distributed under the Boost Software License, Version 1.0. 
williamr@2: // (See accompanying file LICENSE_1_0.txt or copy at 
williamr@2: // http://www.boost.org/LICENSE_1_0.txt)
williamr@2: //
williamr@2: // See http://www.boost.org/libs/mpl for documentation.
williamr@2: 
williamr@2: // $Source: /cvsroot/boost/boost/boost/mpl/always.hpp,v $
williamr@2: // $Date: 2004/09/02 15:40:41 $
williamr@2: // $Revision: 1.5 $
williamr@2: 
williamr@2: #include <boost/mpl/aux_/preprocessor/def_params_tail.hpp>
williamr@2: #include <boost/mpl/aux_/na.hpp>
williamr@2: #include <boost/mpl/aux_/arity_spec.hpp>
williamr@2: 
williamr@2: namespace boost { namespace mpl {
williamr@2: 
williamr@2: template< typename Value > struct always
williamr@2: {
williamr@2:     template<
williamr@2:           typename T
williamr@2:         BOOST_MPL_PP_NESTED_DEF_PARAMS_TAIL(1, typename T, na)
williamr@2:         >
williamr@2:     struct apply
williamr@2:     {
williamr@2:         typedef Value type;
williamr@2:     };
williamr@2: };
williamr@2: 
williamr@2: BOOST_MPL_AUX_ARITY_SPEC(1, always)
williamr@2: 
williamr@2: }}
williamr@2: 
williamr@2: #endif // BOOST_MPL_ALWAYS_HPP_INCLUDED