boost_ext/boost/bimap/container_adaptor/map_adaptor.hpp

   1 // Boost.Bimap
   2 //
   3 // Copyright (c) 2006-2007 Matias Capeletto
   4 //
   5 // Distributed under the Boost Software License, Version 1.0.
   6 // (See accompanying file LICENSE_1_0.txt or copy at
   7 // http://www.boost.org/LICENSE_1_0.txt)
   8
   9 /// \file container_adaptor/map_adaptor.hpp
  10 /// \brief Container adaptor to easily build a std::map signature compatible container.
  11
  12 #ifndef BOOST_BIMAP_CONTAINER_ADAPTOR_MAP_ADAPTOR_HPP
  13 #define BOOST_BIMAP_CONTAINER_ADAPTOR_MAP_ADAPTOR_HPP
  14
  15 #if defined(_MSC_VER) && (_MSC_VER>=1200)
  16 #pragma once
  17 #endif
  18
  19 #include <boost/config.hpp>
  20
  21 #include <boost/bimap/container_adaptor/ordered_associative_container_adaptor.hpp>
  22 #include <boost/mpl/vector.hpp>
  23 #include <boost/mpl/aux_/na.hpp>
  24 #include <boost/call_traits.hpp>
  25
  26 namespace boost {
  27 namespace bimaps {
  28 namespace container_adaptor {
  29
  30 /// \brief Container adaptor to easily build a std::map signature compatible container.
  31
  32 template
  33 <
  34     class Base,
  35
  36     class Iterator,
  37     class ConstIterator,
  38     class ReverseIterator,
  39     class ConstReverseIterator,
  40
  41     class IteratorToBaseConverter          = ::boost::mpl::na,
  42     class IteratorFromBaseConverter        = ::boost::mpl::na,
  43     class ReverseIteratorFromBaseConverter = ::boost::mpl::na,
  44     class ValueToBaseConverter             = ::boost::mpl::na,
  45     class ValueFromBaseConverter           = ::boost::mpl::na,
  46     class KeyToBaseConverter               = ::boost::mpl::na,
  47
  48     class FunctorsFromDerivedClasses = mpl::vector<>
  49 >
  50 class map_adaptor :
  51
  52     public ::boost::bimaps::container_adaptor::
  53                 ordered_associative_container_adaptor
  54     <
  55         Base,
  56         Iterator, ConstIterator, ReverseIterator, ConstReverseIterator,
  57         BOOST_DEDUCED_TYPENAME Iterator::value_type::first_type,
  58         IteratorToBaseConverter, IteratorFromBaseConverter,
  59         ReverseIteratorFromBaseConverter,
  60         ValueToBaseConverter, ValueFromBaseConverter,
  61         KeyToBaseConverter,
  62         FunctorsFromDerivedClasses
  63     >
  64 {
  65
  66     typedef ::boost::bimaps::container_adaptor::
  67                 ordered_associative_container_adaptor
  68     <
  69         Base,
  70         Iterator, ConstIterator, ReverseIterator, ConstReverseIterator,
  71         BOOST_DEDUCED_TYPENAME Iterator::value_type::first_type,
  72         IteratorToBaseConverter, IteratorFromBaseConverter,
  73         ReverseIteratorFromBaseConverter,
  74         ValueToBaseConverter, ValueFromBaseConverter,
  75         KeyToBaseConverter,
  76         FunctorsFromDerivedClasses
  77
  78     > base_;
  79
  80     // MetaData -------------------------------------------------------------
  81
  82     public:
  83
  84     typedef BOOST_DEDUCED_TYPENAME Iterator::value_type::second_type data_type;
  85
  86     // Access -----------------------------------------------------------------
  87
  88     public:
  89
  90     explicit map_adaptor(Base & c) :
  91         base_(c) {}
  92
  93     protected:
  94
  95     typedef map_adaptor map_adaptor_;
  96
  97     // Interface --------------------------------------------------------------
  98
  99     public:
 100
 101     template< class CompatibleKey >
 102     data_type& operator[](const CompatibleKey & k)
 103     {
 104         return this->base()
 105             [this->template functor<BOOST_DEDUCED_TYPENAME base_::key_to_base>()(k)];
 106     }
 107
 108     template< class CompatibleKey >
 109     data_type& at(const CompatibleKey & k)
 110     {
 111         return this->base().
 112             at(this->template functor<BOOST_DEDUCED_TYPENAME base_::key_to_base>()(k));
 113     }
 114
 115     template< class CompatibleKey >
 116     const data_type& at(const CompatibleKey & k) const
 117     {
 118         return this->base().
 119             at(this->template functor<BOOST_DEDUCED_TYPENAME base_::key_to_base>()(k));
 120     }
 121
 122 };
 123
 124
 125 } // namespace container_adaptor
 126 } // namespace bimaps
 127 } // namespace boost
 128
 129
 130 #endif // BOOST_BIMAP_CONTAINER_ADAPTOR_MAP_ADAPTOR_HPP
 131