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| 2 | #ifndef BOOST_MPL_SET_AUX_ITEM_HPP_INCLUDED |
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| 3 | #define BOOST_MPL_SET_AUX_ITEM_HPP_INCLUDED |
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| 4 | |
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| 5 | // Copyright Aleksey Gurtovoy 2003-2004 |
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| 6 | // Copyright David Abrahams 2003-2004 |
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| 7 | // |
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| 8 | // Distributed under the Boost Software License, Version 1.0. |
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| 9 | // (See accompanying file LICENSE_1_0.txt or copy at |
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| 10 | // http://www.boost.org/LICENSE_1_0.txt) |
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| 11 | // |
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| 12 | // See http://www.boost.org/libs/mpl for documentation. |
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| 13 | |
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| 14 | // $Source: /cvsroot/boost/boost/boost/mpl/set/aux_/item.hpp,v $ |
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| 15 | // $Date: 2005/06/18 22:03:09 $ |
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| 16 | // $Revision: 1.7 $ |
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| 17 | |
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| 18 | #include <boost/mpl/long.hpp> |
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| 19 | #include <boost/mpl/void.hpp> |
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| 20 | #include <boost/mpl/next.hpp> |
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| 21 | #include <boost/mpl/prior.hpp> |
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| 22 | #include <boost/mpl/set/aux_/set0.hpp> |
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| 23 | #include <boost/mpl/aux_/type_wrapper.hpp> |
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| 24 | #include <boost/mpl/aux_/config/arrays.hpp> |
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| 25 | |
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| 26 | namespace boost { namespace mpl { |
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| 27 | |
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| 28 | template< typename T, typename Base > |
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| 29 | struct s_item |
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| 30 | : Base |
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| 31 | { |
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| 32 | typedef s_item<T,Base> item_; |
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| 33 | typedef void_ last_masked_; |
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| 34 | typedef Base next_; |
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| 35 | typedef T item_type_; |
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| 36 | typedef item_type_ type; |
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| 37 | typedef Base base; |
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| 38 | |
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| 39 | typedef typename next< typename Base::size >::type size; |
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| 40 | typedef typename next< typename Base::order >::type order; |
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| 41 | |
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| 42 | #if defined(BOOST_MPL_CFG_NO_DEPENDENT_ARRAY_TYPES) |
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| 43 | typedef typename aux::weighted_tag<BOOST_MPL_AUX_MSVC_VALUE_WKND(order)::value>::type order_tag_; |
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| 44 | #else |
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| 45 | typedef char (&order_tag_)[BOOST_MPL_AUX_MSVC_VALUE_WKND(order)::value]; |
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| 46 | #endif |
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| 47 | |
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| 48 | BOOST_MPL_AUX_SET_OVERLOAD( order_tag_, ORDER_BY_KEY, s_item, aux::type_wrapper<T>* ); |
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| 49 | BOOST_MPL_AUX_SET_OVERLOAD( aux::no_tag, IS_MASKED, s_item, aux::type_wrapper<T>* ); |
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| 50 | }; |
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| 51 | |
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| 52 | |
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| 53 | template< typename T, typename Base > |
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| 54 | struct s_mask |
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| 55 | : Base |
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| 56 | { |
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| 57 | typedef s_mask<T,Base> item_; |
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| 58 | typedef T last_masked_; |
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| 59 | typedef void_ item_type_; |
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| 60 | typedef Base base; |
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| 61 | typedef typename prior< typename Base::size >::type size; |
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| 62 | |
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| 63 | BOOST_MPL_AUX_SET_OVERLOAD( aux::yes_tag, IS_MASKED, s_mask, aux::type_wrapper<T>* ); |
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| 64 | }; |
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| 65 | |
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| 66 | |
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| 67 | template< typename T, typename Base > |
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| 68 | struct s_unmask |
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| 69 | : Base |
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| 70 | { |
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| 71 | typedef s_unmask<T,Base> item_; |
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| 72 | typedef void_ last_masked_; |
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| 73 | typedef T item_type_; |
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| 74 | typedef Base base; |
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| 75 | typedef typename next< typename Base::size >::type size; |
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| 76 | |
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| 77 | BOOST_MPL_AUX_SET_OVERLOAD( aux::no_tag, IS_MASKED, s_unmask, aux::type_wrapper<T>* ); |
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| 78 | }; |
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| 79 | |
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| 80 | }} |
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| 81 | |
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| 82 | #endif // BOOST_MPL_SET_AUX_ITEM_HPP_INCLUDED |
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