mingw/lib/gcc/mingw32/4.3.3/include/c++/ext/pb_ds/detail/rc_binomial_heap_/rc_binomial_heap_.hpp

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005, 2006 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 2, 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 // You should have received a copy of the GNU General Public License
  17 // along with this library; see the file COPYING.  If not, write to
  18 // the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
  19 // MA 02111-1307, USA.
  20
  21 // As a special exception, you may use this file as part of a free
  22 // software library without restriction.  Specifically, if other files
  23 // instantiate templates or use macros or inline functions from this
  24 // file, or you compile this file and link it with other files to
  25 // produce an executable, this file does not by itself cause the
  26 // resulting executable to be covered by the GNU General Public
  27 // License.  This exception does not however invalidate any other
  28 // reasons why the executable file might be covered by the GNU General
  29 // Public License.
  30
  31 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
  32
  33 // Permission to use, copy, modify, sell, and distribute this software
  34 // is hereby granted without fee, provided that the above copyright
  35 // notice appears in all copies, and that both that copyright notice
  36 // and this permission notice appear in supporting documentation. None
  37 // of the above authors, nor IBM Haifa Research Laboratories, make any
  38 // representation about the suitability of this software for any
  39 // purpose. It is provided "as is" without express or implied
  40 // warranty.
  41
  42 /**
  43  * @file rc_binomial_heap_.hpp
  44  * Contains an implementation for rc_binomial_heap_.
  45  */
  46
  47 /*
  48  * Redundant-counter binomial heap.
  49  */
  50
  51 #include <ext/pb_ds/detail/cond_dealtor.hpp>
  52 #include <ext/pb_ds/detail/type_utils.hpp>
  53 #include <ext/pb_ds/detail/binomial_heap_base_/binomial_heap_base_.hpp>
  54 #include <ext/pb_ds/detail/rc_binomial_heap_/rc.hpp>
  55 #include <debug/debug.h>
  56
  57 namespace __gnu_pbds
  58 {
  59   namespace detail
  60   {
  61 #define PB_DS_CLASS_T_DEC \
  62     template<typename Value_Type, class Cmp_Fn, class Allocator>
  63
  64 #define PB_DS_CLASS_C_DEC \
  65     rc_binomial_heap_<Value_Type, Cmp_Fn, Allocator>
  66
  67 #define PB_DS_BASE_C_DEC \
  68     binomial_heap_base_<Value_Type, Cmp_Fn, Allocator>
  69
  70 #define PB_DS_RC_C_DEC \
  71     rc<typename PB_DS_BASE_C_DEC::node, Allocator>
  72
  73     /**
  74      * class description = "8y|\|0|\/|i41 h34p 74813">
  75      **/
  76     template<typename Value_Type, class Cmp_Fn, class Allocator>
  77     class rc_binomial_heap_ : public PB_DS_BASE_C_DEC
  78     {
  79
  80     private:
  81       typedef PB_DS_BASE_C_DEC base_type;
  82
  83       typedef typename base_type::node_pointer node_pointer;
  84
  85       typedef typename base_type::const_node_pointer const_node_pointer;
  86
  87       typedef PB_DS_RC_C_DEC rc_t;
  88
  89     public:
  90
  91       typedef typename Allocator::size_type size_type;
  92
  93       typedef typename Allocator::difference_type difference_type;
  94
  95       typedef Value_Type value_type;
  96
  97       typedef typename base_type::pointer pointer;
  98
  99       typedef typename base_type::const_pointer const_pointer;
 100
 101       typedef typename base_type::reference reference;
 102
 103       typedef typename base_type::const_reference const_reference;
 104
 105       typedef typename base_type::const_point_iterator const_point_iterator;
 106
 107       typedef typename base_type::point_iterator point_iterator;
 108
 109       typedef typename base_type::const_iterator const_iterator;
 110
 111       typedef typename base_type::iterator iterator;
 112
 113       typedef typename base_type::cmp_fn cmp_fn;
 114
 115       typedef typename base_type::allocator allocator;
 116
 117     public:
 118
 119       rc_binomial_heap_();
 120
 121       rc_binomial_heap_(const Cmp_Fn& r_cmp_fn);
 122
 123       rc_binomial_heap_(const PB_DS_CLASS_C_DEC& other);
 124
 125       ~rc_binomial_heap_();
 126
 127       void
 128       swap(PB_DS_CLASS_C_DEC& other);
 129
 130       inline point_iterator
 131       push(const_reference r_val);
 132
 133       void
 134       modify(point_iterator it, const_reference r_new_val);
 135
 136       inline void
 137       pop();
 138
 139       void
 140       erase(point_iterator it);
 141
 142       inline void
 143       clear();
 144
 145       template<typename Pred>
 146       size_type
 147       erase_if(Pred pred);
 148
 149       template<typename Pred>
 150       void
 151       split(Pred pred, PB_DS_CLASS_C_DEC& other);
 152
 153       void
 154       join(PB_DS_CLASS_C_DEC& other);
 155
 156 #ifdef _GLIBCXX_DEBUG
 157       void
 158       assert_valid() const;
 159 #endif
 160
 161 #ifdef PB_DS_RC_BINOMIAL_HEAP_TRACE_
 162       void
 163       trace() const;
 164 #endif
 165
 166     private:
 167
 168       inline node_pointer
 169       link_with_next_sibling(node_pointer p_nd);
 170
 171       void
 172       make_0_exposed();
 173
 174       void
 175       make_binomial_heap();
 176
 177 #ifdef _GLIBCXX_DEBUG
 178       static const_node_pointer
 179       next_2_pointer(const_node_pointer p_nd);
 180
 181       static const_node_pointer
 182       next_after_0_pointer(const_node_pointer p_nd);
 183 #endif
 184
 185     private:
 186       rc_t m_rc;
 187     };
 188
 189 #include <ext/pb_ds/detail/rc_binomial_heap_/constructors_destructor_fn_imps.hpp>
 190 #include <ext/pb_ds/detail/rc_binomial_heap_/debug_fn_imps.hpp>
 191 #include <ext/pb_ds/detail/rc_binomial_heap_/erase_fn_imps.hpp>
 192 #include <ext/pb_ds/detail/rc_binomial_heap_/trace_fn_imps.hpp>
 193 #include <ext/pb_ds/detail/rc_binomial_heap_/insert_fn_imps.hpp>
 194 #include <ext/pb_ds/detail/rc_binomial_heap_/split_join_fn_imps.hpp>
 195
 196 #undef PB_DS_CLASS_C_DEC
 197
 198 #undef PB_DS_CLASS_T_DEC
 199
 200 #undef PB_DS_BASE_C_DEC
 201
 202 #undef PB_DS_RC_C_DEC
 203   } // namespace detail
 204 } // namespace __gnu_pbds