| // -*- C++ -*- |
| |
| // Copyright (C) 2005-2014 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the terms |
| // of the GNU General Public License as published by the Free Software |
| // Foundation; either version 3, or (at your option) any later |
| // version. |
| |
| // This library is distributed in the hope that it will be useful, but |
| // WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| // General Public License for more details. |
| |
| // Under Section 7 of GPL version 3, you are granted additional |
| // permissions described in the GCC Runtime Library Exception, version |
| // 3.1, as published by the Free Software Foundation. |
| |
| // You should have received a copy of the GNU General Public License and |
| // a copy of the GCC Runtime Library Exception along with this program; |
| // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| // <http://www.gnu.org/licenses/>. |
| |
| // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. |
| |
| // Permission to use, copy, modify, sell, and distribute this software |
| // is hereby granted without fee, provided that the above copyright |
| // notice appears in all copies, and that both that copyright notice |
| // and this permission notice appear in supporting documentation. None |
| // of the above authors, nor IBM Haifa Research Laboratories, make any |
| // representation about the suitability of this software for any |
| // purpose. It is provided "as is" without express or implied |
| // warranty. |
| |
| /** |
| * @file left_child_next_sibling_heap_/left_child_next_sibling_heap_.hpp |
| * Contains an implementation class for a basic heap. |
| */ |
| |
| #ifndef PB_DS_LEFT_CHILD_NEXT_SIBLING_HEAP_HPP |
| #define PB_DS_LEFT_CHILD_NEXT_SIBLING_HEAP_HPP |
| |
| /* |
| * Based on CLRS. |
| */ |
| |
| #include <iterator> |
| #include <ext/pb_ds/detail/cond_dealtor.hpp> |
| #include <ext/pb_ds/detail/type_utils.hpp> |
| #include <ext/pb_ds/detail/left_child_next_sibling_heap_/node.hpp> |
| #include <ext/pb_ds/detail/left_child_next_sibling_heap_/point_const_iterator.hpp> |
| #include <ext/pb_ds/detail/left_child_next_sibling_heap_/const_iterator.hpp> |
| #ifdef PB_DS_LC_NS_HEAP_TRACE_ |
| #include <iostream> |
| #endif |
| #include <debug/debug.h> |
| |
| namespace __gnu_pbds |
| { |
| namespace detail |
| { |
| #ifdef _GLIBCXX_DEBUG |
| #define PB_DS_CLASS_T_DEC \ |
| template<typename Value_Type, typename Cmp_Fn, typename Node_Metadata, \ |
| typename _Alloc, bool Single_Link_Roots> |
| |
| #define PB_DS_CLASS_C_DEC \ |
| left_child_next_sibling_heap<Value_Type, Cmp_Fn, Node_Metadata, \ |
| _Alloc, Single_Link_Roots> |
| #else |
| #define PB_DS_CLASS_T_DEC \ |
| template<typename Value_Type, typename Cmp_Fn, typename Node_Metadata, \ |
| typename _Alloc> |
| |
| #define PB_DS_CLASS_C_DEC \ |
| left_child_next_sibling_heap<Value_Type, Cmp_Fn, Node_Metadata, _Alloc> |
| #endif |
| |
| /// Base class for a basic heap. |
| template<typename Value_Type, |
| typename Cmp_Fn, |
| typename Node_Metadata, |
| typename _Alloc |
| #ifdef _GLIBCXX_DEBUG |
| ,bool Single_Link_Roots> |
| #else |
| > |
| #endif |
| class left_child_next_sibling_heap : public Cmp_Fn |
| { |
| protected: |
| typedef |
| typename _Alloc::template rebind< |
| left_child_next_sibling_heap_node_<Value_Type, Node_Metadata, |
| _Alloc> >::other |
| node_allocator; |
| |
| typedef typename node_allocator::value_type node; |
| typedef typename node_allocator::pointer node_pointer; |
| typedef typename node_allocator::const_pointer node_const_pointer; |
| typedef Node_Metadata node_metadata; |
| typedef std::pair< node_pointer, node_pointer> node_pointer_pair; |
| |
| private: |
| typedef cond_dealtor< node, _Alloc> cond_dealtor_t; |
| |
| enum |
| { |
| simple_value = is_simple<Value_Type>::value |
| }; |
| |
| typedef integral_constant<int, simple_value> no_throw_copies_t; |
| typedef typename _Alloc::template rebind<Value_Type> __rebind_v; |
| |
| public: |
| typedef typename _Alloc::size_type size_type; |
| typedef typename _Alloc::difference_type difference_type; |
| typedef Value_Type value_type; |
| |
| typedef typename __rebind_v::other::pointer pointer; |
| typedef typename __rebind_v::other::const_pointer const_pointer; |
| typedef typename __rebind_v::other::reference reference; |
| typedef typename __rebind_v::other::const_reference const_reference; |
| |
| typedef left_child_next_sibling_heap_node_point_const_iterator_<node, _Alloc> |
| point_const_iterator; |
| |
| typedef point_const_iterator point_iterator; |
| |
| typedef left_child_next_sibling_heap_const_iterator_<node, _Alloc> |
| const_iterator; |
| |
| typedef const_iterator iterator; |
| typedef Cmp_Fn cmp_fn; |
| typedef _Alloc allocator_type; |
| |
| left_child_next_sibling_heap(); |
| left_child_next_sibling_heap(const Cmp_Fn&); |
| left_child_next_sibling_heap(const left_child_next_sibling_heap&); |
| |
| void |
| swap(PB_DS_CLASS_C_DEC&); |
| |
| ~left_child_next_sibling_heap(); |
| |
| inline bool |
| empty() const; |
| |
| inline size_type |
| size() const; |
| |
| inline size_type |
| max_size() const; |
| |
| Cmp_Fn& |
| get_cmp_fn(); |
| |
| const Cmp_Fn& |
| get_cmp_fn() const; |
| |
| inline iterator |
| begin(); |
| |
| inline const_iterator |
| begin() const; |
| |
| inline iterator |
| end(); |
| |
| inline const_iterator |
| end() const; |
| |
| void |
| clear(); |
| |
| #ifdef PB_DS_LC_NS_HEAP_TRACE_ |
| void |
| trace() const; |
| #endif |
| |
| protected: |
| inline node_pointer |
| get_new_node_for_insert(const_reference); |
| |
| inline static void |
| make_child_of(node_pointer, node_pointer); |
| |
| void |
| value_swap(left_child_next_sibling_heap&); |
| |
| inline static node_pointer |
| parent(node_pointer); |
| |
| inline void |
| swap_with_parent(node_pointer, node_pointer); |
| |
| void |
| bubble_to_top(node_pointer); |
| |
| inline void |
| actual_erase_node(node_pointer); |
| |
| void |
| clear_imp(node_pointer); |
| |
| void |
| to_linked_list(); |
| |
| template<typename Pred> |
| node_pointer |
| prune(Pred); |
| |
| #ifdef _GLIBCXX_DEBUG |
| void |
| assert_valid(const char*, int) const; |
| |
| void |
| assert_node_consistent(node_const_pointer, bool, const char*, int) const; |
| |
| static size_type |
| size_under_node(node_const_pointer); |
| |
| static size_type |
| degree(node_const_pointer); |
| #endif |
| |
| #ifdef PB_DS_LC_NS_HEAP_TRACE_ |
| static void |
| trace_node(node_const_pointer, size_type); |
| #endif |
| |
| private: |
| #ifdef _GLIBCXX_DEBUG |
| void |
| assert_iterators(const char*, int) const; |
| |
| void |
| assert_size(const char*, int) const; |
| |
| static size_type |
| size_from_node(node_const_pointer); |
| #endif |
| |
| node_pointer |
| recursive_copy_node(node_const_pointer); |
| |
| inline node_pointer |
| get_new_node_for_insert(const_reference, false_type); |
| |
| inline node_pointer |
| get_new_node_for_insert(const_reference, true_type); |
| |
| #ifdef PB_DS_LC_NS_HEAP_TRACE_ |
| template<typename Metadata_> |
| static void |
| trace_node_metadata(node_const_pointer, type_to_type<Metadata_>); |
| |
| static void |
| trace_node_metadata(node_const_pointer, type_to_type<null_type>); |
| #endif |
| |
| static node_allocator s_node_allocator; |
| static no_throw_copies_t s_no_throw_copies_ind; |
| |
| protected: |
| node_pointer m_p_root; |
| size_type m_size; |
| }; |
| |
| #include <ext/pb_ds/detail/left_child_next_sibling_heap_/constructors_destructor_fn_imps.hpp> |
| #include <ext/pb_ds/detail/left_child_next_sibling_heap_/iterators_fn_imps.hpp> |
| #include <ext/pb_ds/detail/left_child_next_sibling_heap_/debug_fn_imps.hpp> |
| #include <ext/pb_ds/detail/left_child_next_sibling_heap_/trace_fn_imps.hpp> |
| #include <ext/pb_ds/detail/left_child_next_sibling_heap_/insert_fn_imps.hpp> |
| #include <ext/pb_ds/detail/left_child_next_sibling_heap_/erase_fn_imps.hpp> |
| #include <ext/pb_ds/detail/left_child_next_sibling_heap_/info_fn_imps.hpp> |
| #include <ext/pb_ds/detail/left_child_next_sibling_heap_/policy_access_fn_imps.hpp> |
| |
| #undef PB_DS_CLASS_C_DEC |
| #undef PB_DS_CLASS_T_DEC |
| |
| } // namespace detail |
| } // namespace __gnu_pbds |
| |
| #endif |