libstdc++-v3/include/ext/pb_ds/detail/rc_binomial_heap_/rc_binomial_heap_.hpp

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005, 2006, 2009, 2011 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the terms
   7 // of the GNU General Public License as published by the Free Software
   8 // Foundation; either version 3, or (at your option) any later
   9 // version.
  10
  11 // This library is distributed in the hope that it will be useful, but
  12 // WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 // General Public License for more details.
  15
  16 // Under Section 7 of GPL version 3, you are granted additional
  17 // permissions described in the GCC Runtime Library Exception, version
  18 // 3.1, as published by the Free Software Foundation.
  19
  20 // You should have received a copy of the GNU General Public License and
  21 // a copy of the GCC Runtime Library Exception along with this program;
  22 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  23 // <http://www.gnu.org/licenses/>.
  24
  25 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
  26
  27 // Permission to use, copy, modify, sell, and distribute this software
  28 // is hereby granted without fee, provided that the above copyright
  29 // notice appears in all copies, and that both that copyright notice
  30 // and this permission notice appear in supporting documentation. None
  31 // of the above authors, nor IBM Haifa Research Laboratories, make any
  32 // representation about the suitability of this software for any
  33 // purpose. It is provided "as is" without express or implied
  34 // warranty.
  35
  36 /**
  37  * @file rc_binomial_heap_.hpp
  38  * Contains an implementation for rc_binomial_heap_.
  39  */
  40
  41 /*
  42  * Redundant-counter binomial heap.
  43  */
  44
  45 #include <ext/pb_ds/detail/cond_dealtor.hpp>
  46 #include <ext/pb_ds/detail/type_utils.hpp>
  47 #include <ext/pb_ds/detail/binomial_heap_base_/binomial_heap_base_.hpp>
  48 #include <ext/pb_ds/detail/rc_binomial_heap_/rc.hpp>
  49 #include <debug/debug.h>
  50
  51 namespace __gnu_pbds
  52 {
  53   namespace detail
  54   {
  55 #define PB_DS_CLASS_T_DEC \
  56     template<typename Value_Type, class Cmp_Fn, class Allocator>
  57
  58 #define PB_DS_CLASS_C_DEC \
  59     rc_binomial_heap_<Value_Type, Cmp_Fn, Allocator>
  60
  61 #define PB_DS_BASE_C_DEC \
  62     binomial_heap_base_<Value_Type, Cmp_Fn, Allocator>
  63
  64 #define PB_DS_RC_C_DEC \
  65     rc<typename PB_DS_BASE_C_DEC::node, Allocator>
  66
  67     /**
  68      * class description = "8y|\|0|\/|i41 h34p 74813">
  69      **/
  70     template<typename Value_Type, class Cmp_Fn, class Allocator>
  71     class rc_binomial_heap_ : public PB_DS_BASE_C_DEC
  72     {
  73
  74     private:
  75       typedef PB_DS_BASE_C_DEC base_type;
  76
  77       typedef typename base_type::node_pointer node_pointer;
  78
  79       typedef typename base_type::const_node_pointer const_node_pointer;
  80
  81       typedef PB_DS_RC_C_DEC rc_t;
  82
  83     public:
  84
  85       typedef typename Allocator::size_type size_type;
  86
  87       typedef typename Allocator::difference_type difference_type;
  88
  89       typedef Value_Type value_type;
  90
  91       typedef typename base_type::pointer pointer;
  92
  93       typedef typename base_type::const_pointer const_pointer;
  94
  95       typedef typename base_type::reference reference;
  96
  97       typedef typename base_type::const_reference const_reference;
  98
  99       typedef typename base_type::const_point_iterator const_point_iterator;
 100
 101       typedef typename base_type::point_iterator point_iterator;
 102
 103       typedef typename base_type::const_iterator const_iterator;
 104
 105       typedef typename base_type::iterator iterator;
 106
 107       typedef typename base_type::cmp_fn cmp_fn;
 108
 109       typedef typename base_type::allocator_type allocator_type;
 110
 111     public:
 112
 113       rc_binomial_heap_();
 114
 115       rc_binomial_heap_(const Cmp_Fn& r_cmp_fn);
 116
 117       rc_binomial_heap_(const PB_DS_CLASS_C_DEC& other);
 118
 119       ~rc_binomial_heap_();
 120
 121       void
 122       swap(PB_DS_CLASS_C_DEC& other);
 123
 124       inline point_iterator
 125       push(const_reference r_val);
 126
 127       void
 128       modify(point_iterator it, const_reference r_new_val);
 129
 130       inline void
 131       pop();
 132
 133       void
 134       erase(point_iterator it);
 135
 136       inline void
 137       clear();
 138
 139       template<typename Pred>
 140       size_type
 141       erase_if(Pred pred);
 142
 143       template<typename Pred>
 144       void
 145       split(Pred pred, PB_DS_CLASS_C_DEC& other);
 146
 147       void
 148       join(PB_DS_CLASS_C_DEC& other);
 149
 150 #ifdef _GLIBCXX_DEBUG
 151       void
 152       assert_valid(const char* file, int line) const;
 153 #endif
 154
 155 #ifdef PB_DS_RC_BINOMIAL_HEAP_TRACE_
 156       void
 157       trace() const;
 158 #endif
 159
 160     private:
 161
 162       inline node_pointer
 163       link_with_next_sibling(node_pointer p_nd);
 164
 165       void
 166       make_0_exposed();
 167
 168       void
 169       make_binomial_heap();
 170
 171 #ifdef _GLIBCXX_DEBUG
 172       static const_node_pointer
 173       next_2_pointer(const_node_pointer p_nd);
 174
 175       static const_node_pointer
 176       next_after_0_pointer(const_node_pointer p_nd);
 177 #endif
 178
 179     private:
 180       rc_t m_rc;
 181     };
 182
 183 #include <ext/pb_ds/detail/rc_binomial_heap_/constructors_destructor_fn_imps.hpp>
 184 #include <ext/pb_ds/detail/rc_binomial_heap_/debug_fn_imps.hpp>
 185 #include <ext/pb_ds/detail/rc_binomial_heap_/erase_fn_imps.hpp>
 186 #include <ext/pb_ds/detail/rc_binomial_heap_/trace_fn_imps.hpp>
 187 #include <ext/pb_ds/detail/rc_binomial_heap_/insert_fn_imps.hpp>
 188 #include <ext/pb_ds/detail/rc_binomial_heap_/split_join_fn_imps.hpp>
 189
 190 #undef PB_DS_CLASS_C_DEC
 191 #undef PB_DS_CLASS_T_DEC
 192 #undef PB_DS_BASE_C_DEC
 193 #undef PB_DS_RC_C_DEC
 194   } // namespace detail
 195 } // namespace __gnu_pbds