Chris@16: 
Chris@16: #ifndef BOOST_MPL_SET_AUX_ITEM_HPP_INCLUDED
Chris@16: #define BOOST_MPL_SET_AUX_ITEM_HPP_INCLUDED
Chris@16: 
Chris@16: // Copyright Aleksey Gurtovoy 2003-2007
Chris@16: // Copyright David Abrahams 2003-2004
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. 
Chris@16: // (See accompanying file LICENSE_1_0.txt or copy at 
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: // See http://www.boost.org/libs/mpl for documentation.
Chris@16: 
Chris@101: // $Id$
Chris@101: // $Date$
Chris@101: // $Revision$
Chris@16: 
Chris@16: #include <boost/mpl/long.hpp>
Chris@16: #include <boost/mpl/void.hpp>
Chris@16: #include <boost/mpl/next.hpp>
Chris@16: #include <boost/mpl/prior.hpp>
Chris@16: #include <boost/mpl/set/aux_/set0.hpp>
Chris@16: #include <boost/mpl/aux_/type_wrapper.hpp>
Chris@16: #include <boost/mpl/aux_/config/arrays.hpp>
Chris@16: 
Chris@16: namespace boost { namespace mpl {
Chris@16: 
Chris@16: template< typename T, typename Base >
Chris@16: struct s_item
Chris@16:     : Base
Chris@16: {
Chris@16:     typedef s_item<T,Base> item_;
Chris@16:     typedef void_       last_masked_;
Chris@16:     typedef T           item_type_;
Chris@101:     typedef typename Base::item_ base;
Chris@16:     
Chris@16:     typedef typename next< typename Base::size >::type  size;
Chris@16:     typedef typename next< typename Base::order >::type order;
Chris@16: 
Chris@16: #if defined(BOOST_MPL_CFG_NO_DEPENDENT_ARRAY_TYPES)
Chris@16:     typedef typename aux::weighted_tag<BOOST_MPL_AUX_MSVC_VALUE_WKND(order)::value>::type order_tag_;
Chris@16: #else
Chris@16:     typedef char (&order_tag_)[BOOST_MPL_AUX_MSVC_VALUE_WKND(order)::value];
Chris@16: #endif
Chris@16: 
Chris@16:     BOOST_MPL_AUX_SET_OVERLOAD( order_tag_, ORDER_BY_KEY, s_item, aux::type_wrapper<T>* );
Chris@16:     BOOST_MPL_AUX_SET_OVERLOAD( aux::no_tag, IS_MASKED, s_item, aux::type_wrapper<T>* );
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: template< typename T, typename Base >
Chris@16: struct s_mask
Chris@16:     : Base
Chris@16: {
Chris@16:     typedef s_mask<T,Base> item_;
Chris@16:     typedef T       last_masked_;
Chris@16:     typedef void_   item_type_;
Chris@101:     typedef typename Base::item_ base;
Chris@16:     typedef typename prior< typename Base::size >::type  size;
Chris@16: 
Chris@16:     BOOST_MPL_AUX_SET_OVERLOAD( aux::yes_tag, IS_MASKED, s_mask, aux::type_wrapper<T>* );
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: template< typename T, typename Base >
Chris@16: struct s_unmask
Chris@16:     : Base
Chris@16: {
Chris@16:     typedef s_unmask<T,Base> item_;
Chris@16:     typedef void_   last_masked_;
Chris@16:     typedef T       item_type_;
Chris@101:     typedef typename Base::item_ base;
Chris@16:     typedef typename next< typename Base::size >::type  size;
Chris@16: 
Chris@16:     BOOST_MPL_AUX_SET_OVERLOAD( aux::no_tag, IS_MASKED, s_unmask, aux::type_wrapper<T>* );
Chris@16: };
Chris@16: 
Chris@16: }}
Chris@16: 
Chris@16: #endif // BOOST_MPL_SET_AUX_ITEM_HPP_INCLUDED