rbtree.hpp 21 KB

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  1. /////////////////////////////////////////////////////////////////////////////
  2. //
  3. // (C) Copyright Ion Gaztanaga 2006-2013
  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. // See http://www.boost.org/libs/intrusive for documentation.
  10. //
  11. /////////////////////////////////////////////////////////////////////////////
  12. #ifndef BOOST_INTRUSIVE_RBTREE_HPP
  13. #define BOOST_INTRUSIVE_RBTREE_HPP
  14. #include <boost/intrusive/detail/config_begin.hpp>
  15. #include <cstddef>
  16. #include <functional>
  17. #include <utility>
  18. #include <boost/intrusive/detail/assert.hpp>
  19. #include <boost/static_assert.hpp>
  20. #include <boost/intrusive/intrusive_fwd.hpp>
  21. #include <boost/intrusive/set_hook.hpp>
  22. #include <boost/intrusive/detail/rbtree_node.hpp>
  23. #include <boost/intrusive/bstree.hpp>
  24. #include <boost/intrusive/detail/tree_node.hpp>
  25. #include <boost/intrusive/detail/ebo_functor_holder.hpp>
  26. #include <boost/intrusive/detail/mpl.hpp>
  27. #include <boost/intrusive/pointer_traits.hpp>
  28. #include <boost/intrusive/detail/function_detector.hpp>
  29. #include <boost/intrusive/detail/utilities.hpp>
  30. #include <boost/intrusive/options.hpp>
  31. #include <boost/intrusive/rbtree_algorithms.hpp>
  32. #include <boost/intrusive/link_mode.hpp>
  33. #include <boost/move/move.hpp>
  34. namespace boost {
  35. namespace intrusive {
  36. /// @cond
  37. struct rbtree_defaults
  38. {
  39. typedef detail::default_rbtree_hook proto_value_traits;
  40. static const bool constant_time_size = true;
  41. typedef std::size_t size_type;
  42. typedef void compare;
  43. };
  44. /// @endcond
  45. //! The class template rbtree is an intrusive red-black tree container, that
  46. //! is used to construct intrusive set and multiset containers. The no-throw
  47. //! guarantee holds only, if the value_compare object
  48. //! doesn't throw.
  49. //!
  50. //! The template parameter \c T is the type to be managed by the container.
  51. //! The user can specify additional options and if no options are provided
  52. //! default options are used.
  53. //!
  54. //! The container supports the following options:
  55. //! \c base_hook<>/member_hook<>/value_traits<>,
  56. //! \c constant_time_size<>, \c size_type<> and
  57. //! \c compare<>.
  58. #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
  59. template<class T, class ...Options>
  60. #else
  61. template<class ValueTraits, class VoidOrKeyComp, class SizeType, bool ConstantTimeSize>
  62. #endif
  63. class rbtree_impl
  64. /// @cond
  65. : public bstree_impl<ValueTraits, VoidOrKeyComp, SizeType, ConstantTimeSize, RbTreeAlgorithms>
  66. /// @endcond
  67. {
  68. public:
  69. typedef ValueTraits value_traits;
  70. /// @cond
  71. typedef bstree_impl< ValueTraits, VoidOrKeyComp, SizeType
  72. , ConstantTimeSize, RbTreeAlgorithms> tree_type;
  73. typedef tree_type implementation_defined;
  74. /// @endcond
  75. typedef typename implementation_defined::pointer pointer;
  76. typedef typename implementation_defined::const_pointer const_pointer;
  77. typedef typename implementation_defined::value_type value_type;
  78. typedef typename implementation_defined::key_type key_type;
  79. typedef typename implementation_defined::reference reference;
  80. typedef typename implementation_defined::const_reference const_reference;
  81. typedef typename implementation_defined::difference_type difference_type;
  82. typedef typename implementation_defined::size_type size_type;
  83. typedef typename implementation_defined::value_compare value_compare;
  84. typedef typename implementation_defined::key_compare key_compare;
  85. typedef typename implementation_defined::iterator iterator;
  86. typedef typename implementation_defined::const_iterator const_iterator;
  87. typedef typename implementation_defined::reverse_iterator reverse_iterator;
  88. typedef typename implementation_defined::const_reverse_iterator const_reverse_iterator;
  89. typedef typename implementation_defined::node_traits node_traits;
  90. typedef typename implementation_defined::node node;
  91. typedef typename implementation_defined::node_ptr node_ptr;
  92. typedef typename implementation_defined::const_node_ptr const_node_ptr;
  93. typedef typename implementation_defined::node_algorithms node_algorithms;
  94. static const bool constant_time_size = implementation_defined::constant_time_size;
  95. /// @cond
  96. private:
  97. //noncopyable
  98. BOOST_MOVABLE_BUT_NOT_COPYABLE(rbtree_impl)
  99. /// @endcond
  100. public:
  101. typedef typename implementation_defined::insert_commit_data insert_commit_data;
  102. //! @copydoc ::boost::intrusive::bstree::bstree(const value_compare &,const value_traits &)
  103. explicit rbtree_impl( const value_compare &cmp = value_compare()
  104. , const value_traits &v_traits = value_traits())
  105. : tree_type(cmp, v_traits)
  106. {}
  107. //! @copydoc ::boost::intrusive::bstree::bstree(bool,Iterator,Iterator,const value_compare &,const value_traits &)
  108. template<class Iterator>
  109. rbtree_impl( bool unique, Iterator b, Iterator e
  110. , const value_compare &cmp = value_compare()
  111. , const value_traits &v_traits = value_traits())
  112. : tree_type(unique, b, e, cmp, v_traits)
  113. {}
  114. //! @copydoc ::boost::intrusive::bstree::bstree(bstree &&)
  115. rbtree_impl(BOOST_RV_REF(rbtree_impl) x)
  116. : tree_type(::boost::move(static_cast<tree_type&>(x)))
  117. {}
  118. //! @copydoc ::boost::intrusive::bstree::operator=(bstree &&)
  119. rbtree_impl& operator=(BOOST_RV_REF(rbtree_impl) x)
  120. { return static_cast<rbtree_impl&>(tree_type::operator=(::boost::move(static_cast<tree_type&>(x)))); }
  121. #ifdef BOOST_INTRUSIVE_DOXYGEN_INVOKED
  122. //! @copydoc ::boost::intrusive::bstree::~bstree()
  123. ~rbtree_impl();
  124. //! @copydoc ::boost::intrusive::bstree::begin()
  125. iterator begin();
  126. //! @copydoc ::boost::intrusive::bstree::begin()const
  127. const_iterator begin() const;
  128. //! @copydoc ::boost::intrusive::bstree::cbegin()const
  129. const_iterator cbegin() const;
  130. //! @copydoc ::boost::intrusive::bstree::end()
  131. iterator end();
  132. //! @copydoc ::boost::intrusive::bstree::end()const
  133. const_iterator end() const;
  134. //! @copydoc ::boost::intrusive::bstree::cend()const
  135. const_iterator cend() const;
  136. //! @copydoc ::boost::intrusive::bstree::rbegin()
  137. reverse_iterator rbegin();
  138. //! @copydoc ::boost::intrusive::bstree::rbegin()const
  139. const_reverse_iterator rbegin() const;
  140. //! @copydoc ::boost::intrusive::bstree::crbegin()const
  141. const_reverse_iterator crbegin() const;
  142. //! @copydoc ::boost::intrusive::bstree::rend()
  143. reverse_iterator rend();
  144. //! @copydoc ::boost::intrusive::bstree::rend()const
  145. const_reverse_iterator rend() const;
  146. //! @copydoc ::boost::intrusive::bstree::crend()const
  147. const_reverse_iterator crend() const;
  148. //! @copydoc ::boost::intrusive::bstree::container_from_end_iterator(iterator)
  149. static rbtree_impl &container_from_end_iterator(iterator end_iterator);
  150. //! @copydoc ::boost::intrusive::bstree::container_from_end_iterator(const_iterator)
  151. static const rbtree_impl &container_from_end_iterator(const_iterator end_iterator);
  152. //! @copydoc ::boost::intrusive::bstree::container_from_iterator(iterator)
  153. static rbtree_impl &container_from_iterator(iterator it);
  154. //! @copydoc ::boost::intrusive::bstree::container_from_iterator(const_iterator)
  155. static const rbtree_impl &container_from_iterator(const_iterator it);
  156. //! @copydoc ::boost::intrusive::bstree::key_comp()const
  157. key_compare key_comp() const;
  158. //! @copydoc ::boost::intrusive::bstree::value_comp()const
  159. value_compare value_comp() const;
  160. //! @copydoc ::boost::intrusive::bstree::empty()const
  161. bool empty() const;
  162. //! @copydoc ::boost::intrusive::bstree::size()const
  163. size_type size() const;
  164. //! @copydoc ::boost::intrusive::bstree::swap
  165. void swap(rbtree_impl& other);
  166. //! @copydoc ::boost::intrusive::bstree::clone_from
  167. template <class Cloner, class Disposer>
  168. void clone_from(const rbtree_impl &src, Cloner cloner, Disposer disposer);
  169. //! @copydoc ::boost::intrusive::bstree::insert_equal(reference)
  170. iterator insert_equal(reference value);
  171. //! @copydoc ::boost::intrusive::bstree::insert_equal(const_iterator,reference)
  172. iterator insert_equal(const_iterator hint, reference value);
  173. //! @copydoc ::boost::intrusive::bstree::insert_equal(Iterator,Iterator)
  174. template<class Iterator>
  175. void insert_equal(Iterator b, Iterator e);
  176. //! @copydoc ::boost::intrusive::bstree::insert_unique(reference)
  177. std::pair<iterator, bool> insert_unique(reference value);
  178. //! @copydoc ::boost::intrusive::bstree::insert_unique(const_iterator,reference)
  179. iterator insert_unique(const_iterator hint, reference value);
  180. //! @copydoc ::boost::intrusive::bstree::insert_unique_check(const KeyType&,KeyValueCompare,insert_commit_data&)
  181. template<class KeyType, class KeyValueCompare>
  182. std::pair<iterator, bool> insert_unique_check
  183. (const KeyType &key, KeyValueCompare key_value_comp, insert_commit_data &commit_data);
  184. //! @copydoc ::boost::intrusive::bstree::insert_unique_check(const_iterator,const KeyType&,KeyValueCompare,insert_commit_data&)
  185. template<class KeyType, class KeyValueCompare>
  186. std::pair<iterator, bool> insert_unique_check
  187. (const_iterator hint, const KeyType &key
  188. ,KeyValueCompare key_value_comp, insert_commit_data &commit_data);
  189. //! @copydoc ::boost::intrusive::bstree::insert_unique_commit
  190. iterator insert_unique_commit(reference value, const insert_commit_data &commit_data);
  191. //! @copydoc ::boost::intrusive::bstree::insert_unique(Iterator,Iterator)
  192. template<class Iterator>
  193. void insert_unique(Iterator b, Iterator e);
  194. //! @copydoc ::boost::intrusive::bstree::insert_before
  195. iterator insert_before(const_iterator pos, reference value);
  196. //! @copydoc ::boost::intrusive::bstree::push_back
  197. void push_back(reference value);
  198. //! @copydoc ::boost::intrusive::bstree::push_front
  199. void push_front(reference value);
  200. //! @copydoc ::boost::intrusive::bstree::erase(const_iterator)
  201. iterator erase(const_iterator i);
  202. //! @copydoc ::boost::intrusive::bstree::erase(const_iterator,const_iterator)
  203. iterator erase(const_iterator b, const_iterator e);
  204. //! @copydoc ::boost::intrusive::bstree::erase(const_reference)
  205. size_type erase(const_reference value);
  206. //! @copydoc ::boost::intrusive::bstree::erase(const KeyType&,KeyValueCompare)
  207. template<class KeyType, class KeyValueCompare>
  208. size_type erase(const KeyType& key, KeyValueCompare comp);
  209. //! @copydoc ::boost::intrusive::bstree::erase_and_dispose(const_iterator,Disposer)
  210. template<class Disposer>
  211. iterator erase_and_dispose(const_iterator i, Disposer disposer);
  212. //! @copydoc ::boost::intrusive::bstree::erase_and_dispose(const_iterator,const_iterator,Disposer)
  213. template<class Disposer>
  214. iterator erase_and_dispose(const_iterator b, const_iterator e, Disposer disposer);
  215. //! @copydoc ::boost::intrusive::bstree::erase_and_dispose(const_reference, Disposer)
  216. template<class Disposer>
  217. size_type erase_and_dispose(const_reference value, Disposer disposer);
  218. //! @copydoc ::boost::intrusive::bstree::erase_and_dispose(const KeyType&,KeyValueCompare,Disposer)
  219. template<class KeyType, class KeyValueCompare, class Disposer>
  220. size_type erase_and_dispose(const KeyType& key, KeyValueCompare comp, Disposer disposer);
  221. //! @copydoc ::boost::intrusive::bstree::clear
  222. void clear();
  223. //! @copydoc ::boost::intrusive::bstree::clear_and_dispose
  224. template<class Disposer>
  225. void clear_and_dispose(Disposer disposer);
  226. //! @copydoc ::boost::intrusive::bstree::count(const_reference)const
  227. size_type count(const_reference value) const;
  228. //! @copydoc ::boost::intrusive::bstree::count(const KeyType&,KeyValueCompare)const
  229. template<class KeyType, class KeyValueCompare>
  230. size_type count(const KeyType& key, KeyValueCompare comp) const;
  231. //! @copydoc ::boost::intrusive::bstree::lower_bound(const_reference)
  232. iterator lower_bound(const_reference value);
  233. //! @copydoc ::boost::intrusive::bstree::lower_bound(const KeyType&,KeyValueCompare)
  234. template<class KeyType, class KeyValueCompare>
  235. iterator lower_bound(const KeyType& key, KeyValueCompare comp);
  236. //! @copydoc ::boost::intrusive::bstree::lower_bound(const_reference)const
  237. const_iterator lower_bound(const_reference value) const;
  238. //! @copydoc ::boost::intrusive::bstree::lower_bound(const KeyType&,KeyValueCompare)const
  239. template<class KeyType, class KeyValueCompare>
  240. const_iterator lower_bound(const KeyType& key, KeyValueCompare comp) const;
  241. //! @copydoc ::boost::intrusive::bstree::upper_bound(const_reference)
  242. iterator upper_bound(const_reference value);
  243. //! @copydoc ::boost::intrusive::bstree::upper_bound(const KeyType&,KeyValueCompare)
  244. template<class KeyType, class KeyValueCompare>
  245. iterator upper_bound(const KeyType& key, KeyValueCompare comp);
  246. //! @copydoc ::boost::intrusive::bstree::upper_bound(const_reference)const
  247. const_iterator upper_bound(const_reference value) const;
  248. //! @copydoc ::boost::intrusive::bstree::upper_bound(const KeyType&,KeyValueCompare)const
  249. template<class KeyType, class KeyValueCompare>
  250. const_iterator upper_bound(const KeyType& key, KeyValueCompare comp) const;
  251. //! @copydoc ::boost::intrusive::bstree::find(const_reference)
  252. iterator find(const_reference value);
  253. //! @copydoc ::boost::intrusive::bstree::find(const KeyType&,KeyValueCompare)
  254. template<class KeyType, class KeyValueCompare>
  255. iterator find(const KeyType& key, KeyValueCompare comp);
  256. //! @copydoc ::boost::intrusive::bstree::find(const_reference)const
  257. const_iterator find(const_reference value) const;
  258. //! @copydoc ::boost::intrusive::bstree::find(const KeyType&,KeyValueCompare)const
  259. template<class KeyType, class KeyValueCompare>
  260. const_iterator find(const KeyType& key, KeyValueCompare comp) const;
  261. //! @copydoc ::boost::intrusive::bstree::equal_range(const_reference)
  262. std::pair<iterator,iterator> equal_range(const_reference value);
  263. //! @copydoc ::boost::intrusive::bstree::equal_range(const KeyType&,KeyValueCompare)
  264. template<class KeyType, class KeyValueCompare>
  265. std::pair<iterator,iterator> equal_range(const KeyType& key, KeyValueCompare comp);
  266. //! @copydoc ::boost::intrusive::bstree::equal_range(const_reference)const
  267. std::pair<const_iterator, const_iterator>
  268. equal_range(const_reference value) const;
  269. //! @copydoc ::boost::intrusive::bstree::equal_range(const KeyType&,KeyValueCompare)const
  270. template<class KeyType, class KeyValueCompare>
  271. std::pair<const_iterator, const_iterator>
  272. equal_range(const KeyType& key, KeyValueCompare comp) const;
  273. //! @copydoc ::boost::intrusive::bstree::bounded_range(const_reference,const_reference,bool,bool)
  274. std::pair<iterator,iterator> bounded_range
  275. (const_reference lower_value, const_reference upper_value, bool left_closed, bool right_closed);
  276. //! @copydoc ::boost::intrusive::bstree::bounded_range(const KeyType&,const KeyType&,KeyValueCompare,bool,bool)
  277. template<class KeyType, class KeyValueCompare>
  278. std::pair<iterator,iterator> bounded_range
  279. (const KeyType& lower_key, const KeyType& upper_key, KeyValueCompare comp, bool left_closed, bool right_closed);
  280. //! @copydoc ::boost::intrusive::bstree::bounded_range(const_reference,const_reference,bool,bool)const
  281. std::pair<const_iterator, const_iterator>
  282. bounded_range(const_reference lower_value, const_reference upper_value, bool left_closed, bool right_closed) const;
  283. //! @copydoc ::boost::intrusive::bstree::bounded_range(const KeyType&,const KeyType&,KeyValueCompare,bool,bool)const
  284. template<class KeyType, class KeyValueCompare>
  285. std::pair<const_iterator, const_iterator> bounded_range
  286. (const KeyType& lower_key, const KeyType& upper_key, KeyValueCompare comp, bool left_closed, bool right_closed) const;
  287. //! @copydoc ::boost::intrusive::bstree::s_iterator_to(reference)
  288. static iterator s_iterator_to(reference value);
  289. //! @copydoc ::boost::intrusive::bstree::s_iterator_to(const_reference)
  290. static const_iterator s_iterator_to(const_reference value);
  291. //! @copydoc ::boost::intrusive::bstree::iterator_to(reference)
  292. iterator iterator_to(reference value);
  293. //! @copydoc ::boost::intrusive::bstree::iterator_to(const_reference)const
  294. const_iterator iterator_to(const_reference value) const;
  295. //! @copydoc ::boost::intrusive::bstree::init_node(reference)
  296. static void init_node(reference value);
  297. //! @copydoc ::boost::intrusive::bstree::unlink_leftmost_without_rebalance
  298. pointer unlink_leftmost_without_rebalance();
  299. //! @copydoc ::boost::intrusive::bstree::replace_node
  300. void replace_node(iterator replace_this, reference with_this);
  301. //! @copydoc ::boost::intrusive::bstree::remove_node
  302. void remove_node(reference value);
  303. #endif //#ifdef BOOST_INTRUSIVE_DOXYGEN_INVOKED
  304. };
  305. #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
  306. template<class T, class ...Options>
  307. bool operator< (const rbtree_impl<T, Options...> &x, const rbtree_impl<T, Options...> &y);
  308. template<class T, class ...Options>
  309. bool operator==(const rbtree_impl<T, Options...> &x, const rbtree_impl<T, Options...> &y);
  310. template<class T, class ...Options>
  311. bool operator!= (const rbtree_impl<T, Options...> &x, const rbtree_impl<T, Options...> &y);
  312. template<class T, class ...Options>
  313. bool operator>(const rbtree_impl<T, Options...> &x, const rbtree_impl<T, Options...> &y);
  314. template<class T, class ...Options>
  315. bool operator<=(const rbtree_impl<T, Options...> &x, const rbtree_impl<T, Options...> &y);
  316. template<class T, class ...Options>
  317. bool operator>=(const rbtree_impl<T, Options...> &x, const rbtree_impl<T, Options...> &y);
  318. template<class T, class ...Options>
  319. void swap(rbtree_impl<T, Options...> &x, rbtree_impl<T, Options...> &y);
  320. #endif //#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
  321. //! Helper metafunction to define a \c rbtree that yields to the same type when the
  322. //! same options (either explicitly or implicitly) are used.
  323. #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) || defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
  324. template<class T, class ...Options>
  325. #else
  326. template<class T, class O1 = void, class O2 = void
  327. , class O3 = void, class O4 = void>
  328. #endif
  329. struct make_rbtree
  330. {
  331. /// @cond
  332. typedef typename pack_options
  333. < rbtree_defaults,
  334. #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
  335. O1, O2, O3, O4
  336. #else
  337. Options...
  338. #endif
  339. >::type packed_options;
  340. typedef typename detail::get_value_traits
  341. <T, typename packed_options::proto_value_traits>::type value_traits;
  342. typedef rbtree_impl
  343. < value_traits
  344. , typename packed_options::compare
  345. , typename packed_options::size_type
  346. , packed_options::constant_time_size
  347. > implementation_defined;
  348. /// @endcond
  349. typedef implementation_defined type;
  350. };
  351. #ifndef BOOST_INTRUSIVE_DOXYGEN_INVOKED
  352. #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
  353. template<class T, class O1, class O2, class O3, class O4>
  354. #else
  355. template<class T, class ...Options>
  356. #endif
  357. class rbtree
  358. : public make_rbtree<T,
  359. #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
  360. O1, O2, O3, O4
  361. #else
  362. Options...
  363. #endif
  364. >::type
  365. {
  366. typedef typename make_rbtree
  367. <T,
  368. #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
  369. O1, O2, O3, O4
  370. #else
  371. Options...
  372. #endif
  373. >::type Base;
  374. BOOST_MOVABLE_BUT_NOT_COPYABLE(rbtree)
  375. public:
  376. typedef typename Base::value_compare value_compare;
  377. typedef typename Base::value_traits value_traits;
  378. typedef typename Base::real_value_traits real_value_traits;
  379. typedef typename Base::iterator iterator;
  380. typedef typename Base::const_iterator const_iterator;
  381. typedef typename Base::reverse_iterator reverse_iterator;
  382. typedef typename Base::const_reverse_iterator const_reverse_iterator;
  383. //Assert if passed value traits are compatible with the type
  384. BOOST_STATIC_ASSERT((detail::is_same<typename real_value_traits::value_type, T>::value));
  385. explicit rbtree( const value_compare &cmp = value_compare()
  386. , const value_traits &v_traits = value_traits())
  387. : Base(cmp, v_traits)
  388. {}
  389. template<class Iterator>
  390. rbtree( bool unique, Iterator b, Iterator e
  391. , const value_compare &cmp = value_compare()
  392. , const value_traits &v_traits = value_traits())
  393. : Base(unique, b, e, cmp, v_traits)
  394. {}
  395. rbtree(BOOST_RV_REF(rbtree) x)
  396. : Base(::boost::move(static_cast<Base&>(x)))
  397. {}
  398. rbtree& operator=(BOOST_RV_REF(rbtree) x)
  399. { return static_cast<rbtree &>(this->Base::operator=(::boost::move(static_cast<Base&>(x)))); }
  400. static rbtree &container_from_end_iterator(iterator end_iterator)
  401. { return static_cast<rbtree &>(Base::container_from_end_iterator(end_iterator)); }
  402. static const rbtree &container_from_end_iterator(const_iterator end_iterator)
  403. { return static_cast<const rbtree &>(Base::container_from_end_iterator(end_iterator)); }
  404. static rbtree &container_from_iterator(iterator it)
  405. { return static_cast<rbtree &>(Base::container_from_iterator(it)); }
  406. static const rbtree &container_from_iterator(const_iterator it)
  407. { return static_cast<const rbtree &>(Base::container_from_iterator(it)); }
  408. };
  409. #endif
  410. } //namespace intrusive
  411. } //namespace boost
  412. #include <boost/intrusive/detail/config_end.hpp>
  413. #endif //BOOST_INTRUSIVE_RBTREE_HPP