avltree.hpp 21 KB

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  1. /////////////////////////////////////////////////////////////////////////////
  2. //
  3. // (C) Copyright Ion Gaztanaga 2007-2013
  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_AVLTREE_HPP
  13. #define BOOST_INTRUSIVE_AVLTREE_HPP
  14. #include <boost/intrusive/detail/config_begin.hpp>
  15. #include <algorithm>
  16. #include <cstddef>
  17. #include <functional>
  18. #include <iterator>
  19. #include <utility>
  20. #include <boost/intrusive/detail/assert.hpp>
  21. #include <boost/static_assert.hpp>
  22. #include <boost/intrusive/intrusive_fwd.hpp>
  23. #include <boost/intrusive/avl_set_hook.hpp>
  24. #include <boost/intrusive/detail/avltree_node.hpp>
  25. #include <boost/intrusive/bstree.hpp>
  26. #include <boost/intrusive/detail/tree_node.hpp>
  27. #include <boost/intrusive/detail/ebo_functor_holder.hpp>
  28. #include <boost/intrusive/detail/mpl.hpp>
  29. #include <boost/intrusive/pointer_traits.hpp>
  30. #include <boost/intrusive/pointer_traits.hpp>
  31. #include <boost/intrusive/options.hpp>
  32. #include <boost/intrusive/detail/utilities.hpp>
  33. #include <boost/intrusive/avltree_algorithms.hpp>
  34. #include <boost/intrusive/link_mode.hpp>
  35. #include <boost/move/move.hpp>
  36. namespace boost {
  37. namespace intrusive {
  38. /// @cond
  39. struct avltree_defaults
  40. {
  41. typedef detail::default_avltree_hook proto_value_traits;
  42. static const bool constant_time_size = true;
  43. typedef std::size_t size_type;
  44. typedef void compare;
  45. };
  46. /// @endcond
  47. //! The class template avltree is an intrusive AVL tree container, that
  48. //! is used to construct intrusive avl_set and avl_multiset containers.
  49. //! The no-throw guarantee holds only, if the value_compare object
  50. //! doesn't throw.
  51. //!
  52. //! The template parameter \c T is the type to be managed by the container.
  53. //! The user can specify additional options and if no options are provided
  54. //! default options are used.
  55. //!
  56. //! The container supports the following options:
  57. //! \c base_hook<>/member_hook<>/value_traits<>,
  58. //! \c constant_time_size<>, \c size_type<> and
  59. //! \c compare<>.
  60. #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
  61. template<class T, class ...Options>
  62. #else
  63. template<class ValueTraits, class VoidOrKeyComp, class SizeType, bool ConstantTimeSize>
  64. #endif
  65. class avltree_impl
  66. /// @cond
  67. : public bstree_impl<ValueTraits, VoidOrKeyComp, SizeType, ConstantTimeSize, AvlTreeAlgorithms>
  68. /// @endcond
  69. {
  70. public:
  71. typedef ValueTraits value_traits;
  72. /// @cond
  73. typedef bstree_impl< ValueTraits, VoidOrKeyComp, SizeType
  74. , ConstantTimeSize, AvlTreeAlgorithms> tree_type;
  75. typedef tree_type implementation_defined;
  76. /// @endcond
  77. typedef typename implementation_defined::pointer pointer;
  78. typedef typename implementation_defined::const_pointer const_pointer;
  79. typedef typename implementation_defined::value_type value_type;
  80. typedef typename implementation_defined::key_type key_type;
  81. typedef typename implementation_defined::reference reference;
  82. typedef typename implementation_defined::const_reference const_reference;
  83. typedef typename implementation_defined::difference_type difference_type;
  84. typedef typename implementation_defined::size_type size_type;
  85. typedef typename implementation_defined::value_compare value_compare;
  86. typedef typename implementation_defined::key_compare key_compare;
  87. typedef typename implementation_defined::iterator iterator;
  88. typedef typename implementation_defined::const_iterator const_iterator;
  89. typedef typename implementation_defined::reverse_iterator reverse_iterator;
  90. typedef typename implementation_defined::const_reverse_iterator const_reverse_iterator;
  91. typedef typename implementation_defined::node_traits node_traits;
  92. typedef typename implementation_defined::node node;
  93. typedef typename implementation_defined::node_ptr node_ptr;
  94. typedef typename implementation_defined::const_node_ptr const_node_ptr;
  95. typedef typename implementation_defined::node_algorithms node_algorithms;
  96. static const bool constant_time_size = implementation_defined::constant_time_size;
  97. /// @cond
  98. private:
  99. //noncopyable
  100. BOOST_MOVABLE_BUT_NOT_COPYABLE(avltree_impl)
  101. /// @endcond
  102. public:
  103. typedef typename implementation_defined::insert_commit_data insert_commit_data;
  104. //! @copydoc ::boost::intrusive::bstree::bstree(const value_compare &,const value_traits &)
  105. explicit avltree_impl( const value_compare &cmp = value_compare()
  106. , const value_traits &v_traits = value_traits())
  107. : tree_type(cmp, v_traits)
  108. {}
  109. //! @copydoc ::boost::intrusive::bstree::bstree(bool,Iterator,Iterator,const value_compare &,const value_traits &)
  110. template<class Iterator>
  111. avltree_impl( bool unique, Iterator b, Iterator e
  112. , const value_compare &cmp = value_compare()
  113. , const value_traits &v_traits = value_traits())
  114. : tree_type(unique, b, e, cmp, v_traits)
  115. {}
  116. //! @copydoc ::boost::intrusive::bstree::bstree(bstree &&)
  117. avltree_impl(BOOST_RV_REF(avltree_impl) x)
  118. : tree_type(::boost::move(static_cast<tree_type&>(x)))
  119. {}
  120. //! @copydoc ::boost::intrusive::bstree::operator=(bstree &&)
  121. avltree_impl& operator=(BOOST_RV_REF(avltree_impl) x)
  122. { return static_cast<avltree_impl&>(tree_type::operator=(::boost::move(static_cast<tree_type&>(x)))); }
  123. #ifdef BOOST_INTRUSIVE_DOXYGEN_INVOKED
  124. //! @copydoc ::boost::intrusive::bstree::~bstree()
  125. ~avltree_impl();
  126. //! @copydoc ::boost::intrusive::bstree::begin()
  127. iterator begin();
  128. //! @copydoc ::boost::intrusive::bstree::begin()const
  129. const_iterator begin() const;
  130. //! @copydoc ::boost::intrusive::bstree::cbegin()const
  131. const_iterator cbegin() const;
  132. //! @copydoc ::boost::intrusive::bstree::end()
  133. iterator end();
  134. //! @copydoc ::boost::intrusive::bstree::end()const
  135. const_iterator end() const;
  136. //! @copydoc ::boost::intrusive::bstree::cend()const
  137. const_iterator cend() const;
  138. //! @copydoc ::boost::intrusive::bstree::rbegin()
  139. reverse_iterator rbegin();
  140. //! @copydoc ::boost::intrusive::bstree::rbegin()const
  141. const_reverse_iterator rbegin() const;
  142. //! @copydoc ::boost::intrusive::bstree::crbegin()const
  143. const_reverse_iterator crbegin() const;
  144. //! @copydoc ::boost::intrusive::bstree::rend()
  145. reverse_iterator rend();
  146. //! @copydoc ::boost::intrusive::bstree::rend()const
  147. const_reverse_iterator rend() const;
  148. //! @copydoc ::boost::intrusive::bstree::crend()const
  149. const_reverse_iterator crend() const;
  150. //! @copydoc ::boost::intrusive::bstree::container_from_end_iterator(iterator)
  151. static avltree_impl &container_from_end_iterator(iterator end_iterator);
  152. //! @copydoc ::boost::intrusive::bstree::container_from_end_iterator(const_iterator)
  153. static const avltree_impl &container_from_end_iterator(const_iterator end_iterator);
  154. //! @copydoc ::boost::intrusive::bstree::container_from_iterator(iterator)
  155. static avltree_impl &container_from_iterator(iterator it);
  156. //! @copydoc ::boost::intrusive::bstree::container_from_iterator(const_iterator)
  157. static const avltree_impl &container_from_iterator(const_iterator it);
  158. //! @copydoc ::boost::intrusive::bstree::key_comp()const
  159. key_compare key_comp() const;
  160. //! @copydoc ::boost::intrusive::bstree::value_comp()const
  161. value_compare value_comp() const;
  162. //! @copydoc ::boost::intrusive::bstree::empty()const
  163. bool empty() const;
  164. //! @copydoc ::boost::intrusive::bstree::size()const
  165. size_type size() const;
  166. //! @copydoc ::boost::intrusive::bstree::swap
  167. void swap(avltree_impl& other);
  168. //! @copydoc ::boost::intrusive::bstree::clone_from
  169. template <class Cloner, class Disposer>
  170. void clone_from(const avltree_impl &src, Cloner cloner, Disposer disposer);
  171. //! @copydoc ::boost::intrusive::bstree::insert_equal(reference)
  172. iterator insert_equal(reference value);
  173. //! @copydoc ::boost::intrusive::bstree::insert_equal(const_iterator,reference)
  174. iterator insert_equal(const_iterator hint, reference value);
  175. //! @copydoc ::boost::intrusive::bstree::insert_equal(Iterator,Iterator)
  176. template<class Iterator>
  177. void insert_equal(Iterator b, Iterator e);
  178. //! @copydoc ::boost::intrusive::bstree::insert_unique(reference)
  179. std::pair<iterator, bool> insert_unique(reference value);
  180. //! @copydoc ::boost::intrusive::bstree::insert_unique(const_iterator,reference)
  181. iterator insert_unique(const_iterator hint, reference value);
  182. //! @copydoc ::boost::intrusive::bstree::insert_unique_check(const KeyType&,KeyValueCompare,insert_commit_data&)
  183. template<class KeyType, class KeyValueCompare>
  184. std::pair<iterator, bool> insert_unique_check
  185. (const KeyType &key, KeyValueCompare key_value_comp, insert_commit_data &commit_data);
  186. //! @copydoc ::boost::intrusive::bstree::insert_unique_check(const_iterator,const KeyType&,KeyValueCompare,insert_commit_data&)
  187. template<class KeyType, class KeyValueCompare>
  188. std::pair<iterator, bool> insert_unique_check
  189. (const_iterator hint, const KeyType &key
  190. ,KeyValueCompare key_value_comp, insert_commit_data &commit_data);
  191. //! @copydoc ::boost::intrusive::bstree::insert_unique_commit
  192. iterator insert_unique_commit(reference value, const insert_commit_data &commit_data);
  193. //! @copydoc ::boost::intrusive::bstree::insert_unique(Iterator,Iterator)
  194. template<class Iterator>
  195. void insert_unique(Iterator b, Iterator e);
  196. //! @copydoc ::boost::intrusive::bstree::insert_before
  197. iterator insert_before(const_iterator pos, reference value);
  198. //! @copydoc ::boost::intrusive::bstree::push_back
  199. void push_back(reference value);
  200. //! @copydoc ::boost::intrusive::bstree::push_front
  201. void push_front(reference value);
  202. //! @copydoc ::boost::intrusive::bstree::erase(const_iterator)
  203. iterator erase(const_iterator i);
  204. //! @copydoc ::boost::intrusive::bstree::erase(const_iterator,const_iterator)
  205. iterator erase(const_iterator b, const_iterator e);
  206. //! @copydoc ::boost::intrusive::bstree::erase(const_reference)
  207. size_type erase(const_reference value);
  208. //! @copydoc ::boost::intrusive::bstree::erase(const KeyType&,KeyValueCompare)
  209. template<class KeyType, class KeyValueCompare>
  210. size_type erase(const KeyType& key, KeyValueCompare comp);
  211. //! @copydoc ::boost::intrusive::bstree::erase_and_dispose(const_iterator,Disposer)
  212. template<class Disposer>
  213. iterator erase_and_dispose(const_iterator i, Disposer disposer);
  214. //! @copydoc ::boost::intrusive::bstree::erase_and_dispose(const_iterator,const_iterator,Disposer)
  215. template<class Disposer>
  216. iterator erase_and_dispose(const_iterator b, const_iterator e, Disposer disposer);
  217. //! @copydoc ::boost::intrusive::bstree::erase_and_dispose(const_reference, Disposer)
  218. template<class Disposer>
  219. size_type erase_and_dispose(const_reference value, Disposer disposer);
  220. //! @copydoc ::boost::intrusive::bstree::erase_and_dispose(const KeyType&,KeyValueCompare,Disposer)
  221. template<class KeyType, class KeyValueCompare, class Disposer>
  222. size_type erase_and_dispose(const KeyType& key, KeyValueCompare comp, Disposer disposer);
  223. //! @copydoc ::boost::intrusive::bstree::clear
  224. void clear();
  225. //! @copydoc ::boost::intrusive::bstree::clear_and_dispose
  226. template<class Disposer>
  227. void clear_and_dispose(Disposer disposer);
  228. //! @copydoc ::boost::intrusive::bstree::count(const_reference)const
  229. size_type count(const_reference value) const;
  230. //! @copydoc ::boost::intrusive::bstree::count(const KeyType&,KeyValueCompare)const
  231. template<class KeyType, class KeyValueCompare>
  232. size_type count(const KeyType& key, KeyValueCompare comp) const;
  233. //! @copydoc ::boost::intrusive::bstree::lower_bound(const_reference)
  234. iterator lower_bound(const_reference value);
  235. //! @copydoc ::boost::intrusive::bstree::lower_bound(const KeyType&,KeyValueCompare)
  236. template<class KeyType, class KeyValueCompare>
  237. iterator lower_bound(const KeyType& key, KeyValueCompare comp);
  238. //! @copydoc ::boost::intrusive::bstree::lower_bound(const_reference)const
  239. const_iterator lower_bound(const_reference value) const;
  240. //! @copydoc ::boost::intrusive::bstree::lower_bound(const KeyType&,KeyValueCompare)const
  241. template<class KeyType, class KeyValueCompare>
  242. const_iterator lower_bound(const KeyType& key, KeyValueCompare comp) const;
  243. //! @copydoc ::boost::intrusive::bstree::upper_bound(const_reference)
  244. iterator upper_bound(const_reference value);
  245. //! @copydoc ::boost::intrusive::bstree::upper_bound(const KeyType&,KeyValueCompare)
  246. template<class KeyType, class KeyValueCompare>
  247. iterator upper_bound(const KeyType& key, KeyValueCompare comp);
  248. //! @copydoc ::boost::intrusive::bstree::upper_bound(const_reference)const
  249. const_iterator upper_bound(const_reference value) const;
  250. //! @copydoc ::boost::intrusive::bstree::upper_bound(const KeyType&,KeyValueCompare)const
  251. template<class KeyType, class KeyValueCompare>
  252. const_iterator upper_bound(const KeyType& key, KeyValueCompare comp) const;
  253. //! @copydoc ::boost::intrusive::bstree::find(const_reference)
  254. iterator find(const_reference value);
  255. //! @copydoc ::boost::intrusive::bstree::find(const KeyType&,KeyValueCompare)
  256. template<class KeyType, class KeyValueCompare>
  257. iterator find(const KeyType& key, KeyValueCompare comp);
  258. //! @copydoc ::boost::intrusive::bstree::find(const_reference)const
  259. const_iterator find(const_reference value) const;
  260. //! @copydoc ::boost::intrusive::bstree::find(const KeyType&,KeyValueCompare)const
  261. template<class KeyType, class KeyValueCompare>
  262. const_iterator find(const KeyType& key, KeyValueCompare comp) const;
  263. //! @copydoc ::boost::intrusive::bstree::equal_range(const_reference)
  264. std::pair<iterator,iterator> equal_range(const_reference value);
  265. //! @copydoc ::boost::intrusive::bstree::equal_range(const KeyType&,KeyValueCompare)
  266. template<class KeyType, class KeyValueCompare>
  267. std::pair<iterator,iterator> equal_range(const KeyType& key, KeyValueCompare comp);
  268. //! @copydoc ::boost::intrusive::bstree::equal_range(const_reference)const
  269. std::pair<const_iterator, const_iterator>
  270. equal_range(const_reference value) const;
  271. //! @copydoc ::boost::intrusive::bstree::equal_range(const KeyType&,KeyValueCompare)const
  272. template<class KeyType, class KeyValueCompare>
  273. std::pair<const_iterator, const_iterator>
  274. equal_range(const KeyType& key, KeyValueCompare comp) const;
  275. //! @copydoc ::boost::intrusive::bstree::bounded_range(const_reference,const_reference,bool,bool)
  276. std::pair<iterator,iterator> bounded_range
  277. (const_reference lower_value, const_reference upper_value, bool left_closed, bool right_closed);
  278. //! @copydoc ::boost::intrusive::bstree::bounded_range(const KeyType&,const KeyType&,KeyValueCompare,bool,bool)
  279. template<class KeyType, class KeyValueCompare>
  280. std::pair<iterator,iterator> bounded_range
  281. (const KeyType& lower_key, const KeyType& upper_key, KeyValueCompare comp, bool left_closed, bool right_closed);
  282. //! @copydoc ::boost::intrusive::bstree::bounded_range(const_reference,const_reference,bool,bool)const
  283. std::pair<const_iterator, const_iterator>
  284. bounded_range(const_reference lower_value, const_reference upper_value, bool left_closed, bool right_closed) const;
  285. //! @copydoc ::boost::intrusive::bstree::bounded_range(const KeyType&,const KeyType&,KeyValueCompare,bool,bool)const
  286. template<class KeyType, class KeyValueCompare>
  287. std::pair<const_iterator, const_iterator> bounded_range
  288. (const KeyType& lower_key, const KeyType& upper_key, KeyValueCompare comp, bool left_closed, bool right_closed) const;
  289. //! @copydoc ::boost::intrusive::bstree::s_iterator_to(reference)
  290. static iterator s_iterator_to(reference value);
  291. //! @copydoc ::boost::intrusive::bstree::s_iterator_to(const_reference)
  292. static const_iterator s_iterator_to(const_reference value);
  293. //! @copydoc ::boost::intrusive::bstree::iterator_to(reference)
  294. iterator iterator_to(reference value);
  295. //! @copydoc ::boost::intrusive::bstree::iterator_to(const_reference)const
  296. const_iterator iterator_to(const_reference value) const;
  297. //! @copydoc ::boost::intrusive::bstree::init_node(reference)
  298. static void init_node(reference value);
  299. //! @copydoc ::boost::intrusive::bstree::unlink_leftmost_without_rebalance
  300. pointer unlink_leftmost_without_rebalance();
  301. //! @copydoc ::boost::intrusive::bstree::replace_node
  302. void replace_node(iterator replace_this, reference with_this);
  303. //! @copydoc ::boost::intrusive::bstree::remove_node
  304. void remove_node(reference value);
  305. #endif //#ifdef BOOST_INTRUSIVE_DOXYGEN_INVOKED
  306. };
  307. #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
  308. template<class T, class ...Options>
  309. bool operator< (const avltree_impl<T, Options...> &x, const avltree_impl<T, Options...> &y);
  310. template<class T, class ...Options>
  311. bool operator==(const avltree_impl<T, Options...> &x, const avltree_impl<T, Options...> &y);
  312. template<class T, class ...Options>
  313. bool operator!= (const avltree_impl<T, Options...> &x, const avltree_impl<T, Options...> &y);
  314. template<class T, class ...Options>
  315. bool operator>(const avltree_impl<T, Options...> &x, const avltree_impl<T, Options...> &y);
  316. template<class T, class ...Options>
  317. bool operator<=(const avltree_impl<T, Options...> &x, const avltree_impl<T, Options...> &y);
  318. template<class T, class ...Options>
  319. bool operator>=(const avltree_impl<T, Options...> &x, const avltree_impl<T, Options...> &y);
  320. template<class T, class ...Options>
  321. void swap(avltree_impl<T, Options...> &x, avltree_impl<T, Options...> &y);
  322. #endif //#if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED)
  323. //! Helper metafunction to define a \c avltree that yields to the same type when the
  324. //! same options (either explicitly or implicitly) are used.
  325. #if defined(BOOST_INTRUSIVE_DOXYGEN_INVOKED) || defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
  326. template<class T, class ...Options>
  327. #else
  328. template<class T, class O1 = void, class O2 = void
  329. , class O3 = void, class O4 = void>
  330. #endif
  331. struct make_avltree
  332. {
  333. /// @cond
  334. typedef typename pack_options
  335. < avltree_defaults,
  336. #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
  337. O1, O2, O3, O4
  338. #else
  339. Options...
  340. #endif
  341. >::type packed_options;
  342. typedef typename detail::get_value_traits
  343. <T, typename packed_options::proto_value_traits>::type value_traits;
  344. typedef avltree_impl
  345. < value_traits
  346. , typename packed_options::compare
  347. , typename packed_options::size_type
  348. , packed_options::constant_time_size
  349. > implementation_defined;
  350. /// @endcond
  351. typedef implementation_defined type;
  352. };
  353. #ifndef BOOST_INTRUSIVE_DOXYGEN_INVOKED
  354. #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
  355. template<class T, class O1, class O2, class O3, class O4>
  356. #else
  357. template<class T, class ...Options>
  358. #endif
  359. class avltree
  360. : public make_avltree<T,
  361. #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
  362. O1, O2, O3, O4
  363. #else
  364. Options...
  365. #endif
  366. >::type
  367. {
  368. typedef typename make_avltree
  369. <T,
  370. #if !defined(BOOST_INTRUSIVE_VARIADIC_TEMPLATES)
  371. O1, O2, O3, O4
  372. #else
  373. Options...
  374. #endif
  375. >::type Base;
  376. BOOST_MOVABLE_BUT_NOT_COPYABLE(avltree)
  377. public:
  378. typedef typename Base::value_compare value_compare;
  379. typedef typename Base::value_traits value_traits;
  380. typedef typename Base::real_value_traits real_value_traits;
  381. typedef typename Base::iterator iterator;
  382. typedef typename Base::const_iterator const_iterator;
  383. typedef typename Base::reverse_iterator reverse_iterator;
  384. typedef typename Base::const_reverse_iterator const_reverse_iterator;
  385. //Assert if passed value traits are compatible with the type
  386. BOOST_STATIC_ASSERT((detail::is_same<typename real_value_traits::value_type, T>::value));
  387. explicit avltree( const value_compare &cmp = value_compare()
  388. , const value_traits &v_traits = value_traits())
  389. : Base(cmp, v_traits)
  390. {}
  391. template<class Iterator>
  392. avltree( bool unique, Iterator b, Iterator e
  393. , const value_compare &cmp = value_compare()
  394. , const value_traits &v_traits = value_traits())
  395. : Base(unique, b, e, cmp, v_traits)
  396. {}
  397. avltree(BOOST_RV_REF(avltree) x)
  398. : Base(::boost::move(static_cast<Base&>(x)))
  399. {}
  400. avltree& operator=(BOOST_RV_REF(avltree) x)
  401. { return static_cast<avltree &>(this->Base::operator=(::boost::move(static_cast<Base&>(x)))); }
  402. static avltree &container_from_end_iterator(iterator end_iterator)
  403. { return static_cast<avltree &>(Base::container_from_end_iterator(end_iterator)); }
  404. static const avltree &container_from_end_iterator(const_iterator end_iterator)
  405. { return static_cast<const avltree &>(Base::container_from_end_iterator(end_iterator)); }
  406. static avltree &container_from_iterator(iterator it)
  407. { return static_cast<avltree &>(Base::container_from_iterator(it)); }
  408. static const avltree &container_from_iterator(const_iterator it)
  409. { return static_cast<const avltree &>(Base::container_from_iterator(it)); }
  410. };
  411. #endif
  412. } //namespace intrusive
  413. } //namespace boost
  414. #include <boost/intrusive/detail/config_end.hpp>
  415. #endif //BOOST_INTRUSIVE_AVLTREE_HPP