Chris@16: 
Chris@16: #ifndef BOOST_MPL_MAP_AUX_ITEM_HPP_INCLUDED
Chris@16: #define BOOST_MPL_MAP_AUX_ITEM_HPP_INCLUDED
Chris@16: 
Chris@16: // Copyright Aleksey Gurtovoy 2003-2004
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/void.hpp>
Chris@16: #include <boost/mpl/pair.hpp>
Chris@16: #include <boost/mpl/long.hpp>
Chris@16: #include <boost/mpl/next.hpp>
Chris@16: #include <boost/mpl/prior.hpp>
Chris@16: #include <boost/mpl/map/aux_/map0.hpp>
Chris@16: #include <boost/mpl/aux_/order_impl.hpp>
Chris@16: #include <boost/mpl/aux_/yes_no.hpp>
Chris@16: #include <boost/mpl/aux_/type_wrapper.hpp>
Chris@16: #include <boost/mpl/aux_/config/arrays.hpp>
Chris@16: #include <boost/mpl/aux_/config/typeof.hpp>
Chris@16: #include <boost/mpl/aux_/config/ctps.hpp>
Chris@16: 
Chris@16: 
Chris@16: namespace boost { namespace mpl {
Chris@16: 
Chris@16: #if defined(BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES)
Chris@16: 
Chris@16: template< typename Key, typename T, typename Base >
Chris@16: struct m_item
Chris@16:     : Base
Chris@16: {
Chris@16:     typedef Key         key_;
Chris@16:     typedef pair<Key,T> item;
Chris@16:     typedef Base        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_MAP_OVERLOAD( aux::type_wrapper<T>, VALUE_BY_KEY, m_item, aux::type_wrapper<Key>* );
Chris@16:     BOOST_MPL_AUX_MAP_OVERLOAD( aux::type_wrapper<item>, ITEM_BY_ORDER, m_item, order* );
Chris@16:     BOOST_MPL_AUX_MAP_OVERLOAD( order_tag_, ORDER_BY_KEY, m_item, aux::type_wrapper<Key>* );
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: template< typename Key, typename Base >
Chris@16: struct m_mask
Chris@16:     : Base
Chris@16: {
Chris@16:     typedef void_   key_;
Chris@16:     typedef Base    base;
Chris@16: 
Chris@16:     typedef typename prior< typename Base::size >::type  size;
Chris@16:     typedef typename x_order_impl<Base,Key>::type key_order_;
Chris@16:     
Chris@16:     BOOST_MPL_AUX_MAP_OVERLOAD( aux::type_wrapper<void_>, VALUE_BY_KEY, m_mask, aux::type_wrapper<Key>* );
Chris@16:     BOOST_MPL_AUX_MAP_OVERLOAD( aux::type_wrapper<void_>, ITEM_BY_ORDER, m_mask, key_order_* );
Chris@16: };
Chris@16: 
Chris@16: #else // BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES
Chris@16: 
Chris@16: 
Chris@16: #   if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
Chris@16: 
Chris@16: template< long n, typename Key, typename T, typename Base >
Chris@16: struct m_item;
Chris@16: 
Chris@16: #   else
Chris@16: 
Chris@16: template< long n >
Chris@16: struct m_item_impl
Chris@16: {
Chris@16:     template< typename Key, typename T, typename Base >
Chris@16:     struct result_;
Chris@16: };
Chris@16: 
Chris@16: template< long n, typename Key, typename T, typename Base >
Chris@16: struct m_item
Chris@16:     : m_item_impl<n>::result_<Key,T,Base>
Chris@16: {
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: #   endif
Chris@16: 
Chris@16: 
Chris@16: template< typename Key, typename T, typename Base >
Chris@16: struct m_item_
Chris@16:     : Base
Chris@16: {
Chris@16:     typedef Key     key_;
Chris@16:     typedef Base    base;
Chris@16:     typedef m_item_ type;
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_MAP_OVERLOAD( order_tag_, ORDER_BY_KEY, m_item_, aux::type_wrapper<Key>* );
Chris@16: };
Chris@16: 
Chris@16: template< typename Key, typename Base >
Chris@16: struct m_mask
Chris@16:     : Base
Chris@16: {
Chris@16:     typedef void_   key_;
Chris@16:     typedef Base    base;
Chris@16: 
Chris@16:     typedef typename prior< typename Base::size >::type  size;
Chris@16:     typedef typename x_order_impl<Base,Key>::type key_order_;
Chris@16:     
Chris@16:     BOOST_MPL_AUX_MAP_OVERLOAD( aux::no_tag, ORDER_BY_KEY, m_mask, aux::type_wrapper<Key>* );
Chris@16:     BOOST_MPL_AUX_MAP_OVERLOAD( aux::yes_tag, IS_MASKED, m_mask, key_order_* );
Chris@16: };
Chris@16: 
Chris@16: #endif // BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES
Chris@16: 
Chris@16: }}
Chris@16: 
Chris@16: #endif // BOOST_MPL_MAP_AUX_ITEM_HPP_INCLUDED