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1 | /* Copyright 2003-2014 Joaquin M Lopez Munoz. |
2 | * Distributed under the Boost Software License, Version 1.0. | |
3 | * (See accompanying file LICENSE_1_0.txt or copy at | |
4 | * http://www.boost.org/LICENSE_1_0.txt) | |
5 | * | |
6 | * See http://www.boost.org/libs/multi_index for library home page. | |
7 | */ | |
8 | ||
9 | #ifndef BOOST_MULTI_INDEX_DETAIL_BIDIR_NODE_ITERATOR_HPP | |
10 | #define BOOST_MULTI_INDEX_DETAIL_BIDIR_NODE_ITERATOR_HPP | |
11 | ||
12 | #if defined(_MSC_VER) | |
13 | #pragma once | |
14 | #endif | |
15 | ||
16 | #include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */ | |
17 | #include <boost/operators.hpp> | |
18 | ||
19 | #if !defined(BOOST_MULTI_INDEX_DISABLE_SERIALIZATION) | |
20 | #include <boost/serialization/nvp.hpp> | |
21 | #include <boost/serialization/split_member.hpp> | |
22 | #endif | |
23 | ||
24 | namespace boost{ | |
25 | ||
26 | namespace multi_index{ | |
27 | ||
28 | namespace detail{ | |
29 | ||
30 | /* Iterator class for node-based indices with bidirectional | |
31 | * iterators (ordered and sequenced indices.) | |
32 | */ | |
33 | ||
34 | template<typename Node> | |
35 | class bidir_node_iterator: | |
36 | public bidirectional_iterator_helper< | |
37 | bidir_node_iterator<Node>, | |
38 | typename Node::value_type, | |
39 | std::ptrdiff_t, | |
40 | const typename Node::value_type*, | |
41 | const typename Node::value_type&> | |
42 | { | |
43 | public: | |
44 | /* coverity[uninit_ctor]: suppress warning */ | |
45 | bidir_node_iterator(){} | |
46 | explicit bidir_node_iterator(Node* node_):node(node_){} | |
47 | ||
48 | const typename Node::value_type& operator*()const | |
49 | { | |
50 | return node->value(); | |
51 | } | |
52 | ||
53 | bidir_node_iterator& operator++() | |
54 | { | |
55 | Node::increment(node); | |
56 | return *this; | |
57 | } | |
58 | ||
59 | bidir_node_iterator& operator--() | |
60 | { | |
61 | Node::decrement(node); | |
62 | return *this; | |
63 | } | |
64 | ||
65 | #if !defined(BOOST_MULTI_INDEX_DISABLE_SERIALIZATION) | |
66 | /* Serialization. As for why the following is public, | |
67 | * see explanation in safe_mode_iterator notes in safe_mode.hpp. | |
68 | */ | |
69 | ||
70 | BOOST_SERIALIZATION_SPLIT_MEMBER() | |
71 | ||
72 | typedef typename Node::base_type node_base_type; | |
73 | ||
74 | template<class Archive> | |
75 | void save(Archive& ar,const unsigned int)const | |
76 | { | |
77 | node_base_type* bnode=node; | |
78 | ar<<serialization::make_nvp("pointer",bnode); | |
79 | } | |
80 | ||
81 | template<class Archive> | |
82 | void load(Archive& ar,const unsigned int) | |
83 | { | |
84 | node_base_type* bnode; | |
85 | ar>>serialization::make_nvp("pointer",bnode); | |
86 | node=static_cast<Node*>(bnode); | |
87 | } | |
88 | #endif | |
89 | ||
90 | /* get_node is not to be used by the user */ | |
91 | ||
92 | typedef Node node_type; | |
93 | ||
94 | Node* get_node()const{return node;} | |
95 | ||
96 | private: | |
97 | Node* node; | |
98 | }; | |
99 | ||
100 | template<typename Node> | |
101 | bool operator==( | |
102 | const bidir_node_iterator<Node>& x, | |
103 | const bidir_node_iterator<Node>& y) | |
104 | { | |
105 | return x.get_node()==y.get_node(); | |
106 | } | |
107 | ||
108 | } /* namespace multi_index::detail */ | |
109 | ||
110 | } /* namespace multi_index */ | |
111 | ||
112 | } /* namespace boost */ | |
113 | ||
114 | #endif |