release/src-rt-6.x.4708/toolchains/hndtools-arm-linux-2.6.36-uclibc-4.5.3/arm-brcm-linux-uclibcgnueabi/include/c++/4.5.3/ext/pb_ds/detail/bin_search_tree_/split_join_fn_imps.hpp

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005, 2006, 2009 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 split_join_fn_imps.hpp
  38  * Contains an implementation class for bin_search_tree_.
  39  */
  40
  41 PB_DS_CLASS_T_DEC
  42 bool
  43 PB_DS_CLASS_C_DEC::
  44 join_prep(PB_DS_CLASS_C_DEC& other)
  45 {
  46   _GLIBCXX_DEBUG_ONLY(assert_valid();)
  47   _GLIBCXX_DEBUG_ONLY(other.assert_valid();)
  48   if (other.m_size == 0)
  49     return false;
  50
  51   if (m_size == 0)
  52     {
  53       value_swap(other);
  54       return false;
  55     }
  56
  57   const bool greater = Cmp_Fn::operator()(PB_DS_V2F(m_p_head->m_p_right->m_value), PB_DS_V2F(other.m_p_head->m_p_left->m_value));
  58
  59   const bool lesser = Cmp_Fn::operator()(PB_DS_V2F(other.m_p_head->m_p_right->m_value), PB_DS_V2F(m_p_head->m_p_left->m_value));
  60
  61   if (!greater && !lesser)
  62     __throw_join_error();
  63
  64   if (lesser)
  65     value_swap(other);
  66
  67   m_size += other.m_size;
  68   _GLIBCXX_DEBUG_ONLY(debug_base::join(other);)
  69   return true;
  70 }
  71
  72 PB_DS_CLASS_T_DEC
  73 void
  74 PB_DS_CLASS_C_DEC::
  75 join_finish(PB_DS_CLASS_C_DEC& other)
  76 {
  77   initialize_min_max();
  78   other.initialize();
  79 }
  80
  81 PB_DS_CLASS_T_DEC
  82 bool
  83 PB_DS_CLASS_C_DEC::
  84 split_prep(const_key_reference r_key, PB_DS_CLASS_C_DEC& other)
  85 {
  86   _GLIBCXX_DEBUG_ONLY(assert_valid();)
  87   _GLIBCXX_DEBUG_ONLY(other.assert_valid();)
  88   other.clear();
  89
  90   if (m_size == 0)
  91     {
  92       _GLIBCXX_DEBUG_ONLY(assert_valid();)
  93       _GLIBCXX_DEBUG_ONLY(other.assert_valid();)
  94       return false;
  95     }
  96
  97   if (Cmp_Fn::operator()(r_key, PB_DS_V2F(m_p_head->m_p_left->m_value)))
  98     {
  99       value_swap(other);
 100       _GLIBCXX_DEBUG_ONLY(assert_valid();)
 101       _GLIBCXX_DEBUG_ONLY(other.assert_valid();)
 102       return false;
 103     }
 104
 105   if (!Cmp_Fn::operator()(r_key, PB_DS_V2F(m_p_head->m_p_right->m_value)))
 106     {
 107       _GLIBCXX_DEBUG_ONLY(assert_valid();)
 108       _GLIBCXX_DEBUG_ONLY(other.assert_valid();)
 109       return false;
 110     }
 111
 112   if (m_size == 1)
 113     {
 114       value_swap(other);
 115       _GLIBCXX_DEBUG_ONLY(assert_valid();)
 116       _GLIBCXX_DEBUG_ONLY(other.assert_valid();)
 117       return false;
 118     }
 119
 120   _GLIBCXX_DEBUG_ONLY(debug_base::split(r_key,(Cmp_Fn& )(*this), other);)
 121   return true;
 122 }
 123
 124 PB_DS_CLASS_T_DEC
 125 void
 126 PB_DS_CLASS_C_DEC::
 127 split_finish(PB_DS_CLASS_C_DEC& other)
 128 {
 129   other.initialize_min_max();
 130   other.m_size = std::distance(other.begin(), other.end());
 131   m_size -= other.m_size;
 132   initialize_min_max();
 133   _GLIBCXX_DEBUG_ONLY(assert_valid();)
 134   _GLIBCXX_DEBUG_ONLY(other.assert_valid();)
 135 }
 136
 137 PB_DS_CLASS_T_DEC
 138 typename PB_DS_CLASS_C_DEC::size_type
 139 PB_DS_CLASS_C_DEC::
 140 recursive_count(node_pointer p) const
 141 {
 142   if (p == NULL)
 143     return 0;
 144   return 1 + recursive_count(p->m_p_left) + recursive_count(p->m_p_right);
 145 }
 146