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
26namespace boost { namespace mpl {
27
28template< typename T, typename Base >
29struct 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
52template< typename T, typename Base >
53struct 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
67template< typename T, typename Base >
68struct 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

source code of include/boost/mpl/set/aux_/item.hpp