1 | |
2 | #ifndef BOOST_MPL_SET_AUX_ITEM_HPP_INCLUDED |
3 | #define BOOST_MPL_SET_AUX_ITEM_HPP_INCLUDED |
4 | |
5 | // Copyright Aleksey Gurtovoy 2003-2007 |
6 | // Copyright David Abrahams 2003-2004 |
7 | // |
8 | // Distributed under the Boost Software License, Version 1.0. |
9 | // (See accompanying file LICENSE_1_0.txt or copy at |
10 | // http://www.boost.org/LICENSE_1_0.txt) |
11 | // |
12 | // See http://www.boost.org/libs/mpl for documentation. |
13 | |
14 | // $Id$ |
15 | // $Date$ |
16 | // $Revision$ |
17 | |
18 | #include <boost/mpl/long.hpp> |
19 | #include <boost/mpl/void.hpp> |
20 | #include <boost/mpl/next.hpp> |
21 | #include <boost/mpl/prior.hpp> |
22 | #include <boost/mpl/set/aux_/set0.hpp> |
23 | #include <boost/mpl/aux_/type_wrapper.hpp> |
24 | #include <boost/mpl/aux_/config/arrays.hpp> |
25 | |
26 | namespace boost { namespace mpl { |
27 | |
28 | template< typename T, typename Base > |
29 | struct s_item |
30 | : Base |
31 | { |
32 | typedef s_item<T,Base> item_; |
33 | typedef void_ last_masked_; |
34 | typedef T item_type_; |
35 | typedef typename Base::item_ base; |
36 | typedef s_item type; |
37 | |
38 | typedef typename next< typename Base::size >::type size; |
39 | typedef typename next< typename Base::order >::type order; |
40 | |
41 | #if defined(BOOST_MPL_CFG_NO_DEPENDENT_ARRAY_TYPES) |
42 | typedef typename aux::weighted_tag<BOOST_MPL_AUX_MSVC_VALUE_WKND(order)::value>::type order_tag_; |
43 | #else |
44 | typedef char (&order_tag_)[BOOST_MPL_AUX_MSVC_VALUE_WKND(order)::value]; |
45 | #endif |
46 | |
47 | BOOST_MPL_AUX_SET_OVERLOAD( order_tag_, ORDER_BY_KEY, s_item, aux::type_wrapper<T>* ); |
48 | BOOST_MPL_AUX_SET_OVERLOAD( aux::no_tag, IS_MASKED, s_item, aux::type_wrapper<T>* ); |
49 | }; |
50 | |
51 | |
52 | template< typename T, typename Base > |
53 | struct s_mask |
54 | : Base |
55 | { |
56 | typedef s_mask<T,Base> item_; |
57 | typedef T last_masked_; |
58 | typedef void_ item_type_; |
59 | typedef typename Base::item_ base; |
60 | typedef typename prior< typename Base::size >::type size; |
61 | typedef s_mask type; |
62 | |
63 | BOOST_MPL_AUX_SET_OVERLOAD( aux::yes_tag, IS_MASKED, s_mask, aux::type_wrapper<T>* ); |
64 | }; |
65 | |
66 | |
67 | template< typename T, typename Base > |
68 | struct s_unmask |
69 | : Base |
70 | { |
71 | typedef s_unmask<T,Base> item_; |
72 | typedef void_ last_masked_; |
73 | typedef T item_type_; |
74 | typedef typename Base::item_ base; |
75 | typedef typename next< typename Base::size >::type size; |
76 | |
77 | BOOST_MPL_AUX_SET_OVERLOAD( aux::no_tag, IS_MASKED, s_unmask, aux::type_wrapper<T>* ); |
78 | }; |
79 | |
80 | }} |
81 | |
82 | #endif // BOOST_MPL_SET_AUX_ITEM_HPP_INCLUDED |
83 | |