ceph/src/boost/boost/mpl/map/aux_/item.hpp

   1
   2 #ifndef BOOST_MPL_MAP_AUX_ITEM_HPP_INCLUDED
   3 #define BOOST_MPL_MAP_AUX_ITEM_HPP_INCLUDED
   4
   5 // Copyright Aleksey Gurtovoy 2003-2004
   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/void.hpp>
  19 #include <boost/mpl/pair.hpp>
  20 #include <boost/mpl/long.hpp>
  21 #include <boost/mpl/next.hpp>
  22 #include <boost/mpl/prior.hpp>
  23 #include <boost/mpl/map/aux_/map0.hpp>
  24 #include <boost/mpl/aux_/order_impl.hpp>
  25 #include <boost/mpl/aux_/yes_no.hpp>
  26 #include <boost/mpl/aux_/type_wrapper.hpp>
  27 #include <boost/mpl/aux_/config/arrays.hpp>
  28 #include <boost/mpl/aux_/config/typeof.hpp>
  29 #include <boost/mpl/aux_/config/ctps.hpp>
  30
  31
  32 namespace boost { namespace mpl {
  33
  34 #if defined(BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES)
  35
  36 template< typename Key, typename T, typename Base >
  37 struct m_item
  38     : Base
  39 {
  40     typedef Key         key_;
  41     typedef pair<Key,T> item;
  42     typedef Base        base;
  43     typedef m_item      type;
  44
  45     typedef typename next< typename Base::size >::type  size;
  46     typedef typename next< typename Base::order >::type order;
  47
  48 #if defined(BOOST_MPL_CFG_NO_DEPENDENT_ARRAY_TYPES)
  49     typedef typename aux::weighted_tag<BOOST_MPL_AUX_MSVC_VALUE_WKND(order)::value>::type order_tag_;
  50 #else
  51     typedef char (&order_tag_)[BOOST_MPL_AUX_MSVC_VALUE_WKND(order)::value];
  52 #endif
  53
  54     BOOST_MPL_AUX_MAP_OVERLOAD( aux::type_wrapper<T>, VALUE_BY_KEY, m_item, aux::type_wrapper<Key>* );
  55     BOOST_MPL_AUX_MAP_OVERLOAD( aux::type_wrapper<item>, ITEM_BY_ORDER, m_item, order* );
  56     BOOST_MPL_AUX_MAP_OVERLOAD( order_tag_, ORDER_BY_KEY, m_item, aux::type_wrapper<Key>* );
  57 };
  58
  59
  60 template< typename Key, typename Base >
  61 struct m_mask
  62     : Base
  63 {
  64     typedef void_   key_;
  65     typedef Base    base;
  66     typedef m_mask  type;
  67
  68     typedef typename prior< typename Base::size >::type  size;
  69     typedef typename x_order_impl<Base,Key>::type key_order_;
  70
  71     BOOST_MPL_AUX_MAP_OVERLOAD( aux::type_wrapper<void_>, VALUE_BY_KEY, m_mask, aux::type_wrapper<Key>* );
  72     BOOST_MPL_AUX_MAP_OVERLOAD( aux::type_wrapper<void_>, ITEM_BY_ORDER, m_mask, key_order_* );
  73 };
  74
  75 #else // BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES
  76
  77
  78 #   if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
  79
  80 template< long n, typename Key, typename T, typename Base >
  81 struct m_item;
  82
  83 #   else
  84
  85 template< long n >
  86 struct m_item_impl
  87 {
  88     template< typename Key, typename T, typename Base >
  89     struct result_;
  90 };
  91
  92 template< long n, typename Key, typename T, typename Base >
  93 struct m_item
  94     : m_item_impl<n>::result_<Key,T,Base>
  95 {
  96 };
  97
  98
  99 #   endif
 100
 101
 102 template< typename Key, typename T, typename Base >
 103 struct m_item_
 104     : Base
 105 {
 106     typedef Key     key_;
 107     typedef Base    base;
 108     typedef m_item_ type;
 109
 110     typedef typename next< typename Base::size >::type  size;
 111     typedef typename next< typename Base::order >::type order;
 112
 113 #if defined(BOOST_MPL_CFG_NO_DEPENDENT_ARRAY_TYPES)
 114     typedef typename aux::weighted_tag<BOOST_MPL_AUX_MSVC_VALUE_WKND(order)::value>::type order_tag_;
 115 #else
 116     typedef char (&order_tag_)[BOOST_MPL_AUX_MSVC_VALUE_WKND(order)::value];
 117 #endif
 118
 119     BOOST_MPL_AUX_MAP_OVERLOAD( order_tag_, ORDER_BY_KEY, m_item_, aux::type_wrapper<Key>* );
 120 };
 121
 122 template< typename Key, typename Base >
 123 struct m_mask
 124     : Base
 125 {
 126     typedef void_   key_;
 127     typedef Base    base;
 128     typedef m_mask  type;
 129
 130     typedef typename prior< typename Base::size >::type  size;
 131     typedef typename x_order_impl<Base,Key>::type key_order_;
 132
 133     BOOST_MPL_AUX_MAP_OVERLOAD( aux::no_tag, ORDER_BY_KEY, m_mask, aux::type_wrapper<Key>* );
 134     BOOST_MPL_AUX_MAP_OVERLOAD( aux::yes_tag, IS_MASKED, m_mask, key_order_* );
 135 };
 136
 137 #endif // BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES
 138
 139 }}
 140
 141 #endif // BOOST_MPL_MAP_AUX_ITEM_HPP_INCLUDED