Subversion Repositories Kolibri OS

Rev

Blame | Last modification | View Log | RSS feed

  1. // -*- C++ -*-
  2.  
  3. // Copyright (C) 2005-2015 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 bin_search_tree_/erase_fn_imps.hpp
  38.  * Contains an implementation class for bin_search_tree_.
  39.  */
  40.  
  41. PB_DS_CLASS_T_DEC
  42. inline void
  43. PB_DS_CLASS_C_DEC::
  44. actual_erase_node(node_pointer p_z)
  45. {
  46.   _GLIBCXX_DEBUG_ASSERT(m_size > 0);
  47.   --m_size;
  48.   _GLIBCXX_DEBUG_ONLY(debug_base::erase_existing(PB_DS_V2F(p_z->m_value));)
  49.   p_z->~node();
  50.   s_node_allocator.deallocate(p_z, 1);
  51. }
  52.  
  53. PB_DS_CLASS_T_DEC
  54. inline void
  55. PB_DS_CLASS_C_DEC::
  56. update_min_max_for_erased_node(node_pointer p_z)
  57. {
  58.   if (m_size == 1)
  59.     {
  60.       m_p_head->m_p_left = m_p_head->m_p_right = m_p_head;
  61.       return;
  62.     }
  63.  
  64.   if (m_p_head->m_p_left == p_z)
  65.     {
  66.       iterator it(p_z);
  67.       ++it;
  68.       m_p_head->m_p_left = it.m_p_nd;
  69.     }
  70.   else if (m_p_head->m_p_right == p_z)
  71.     {
  72.       iterator it(p_z);
  73.       --it;
  74.       m_p_head->m_p_right = it.m_p_nd;
  75.     }
  76. }
  77.  
  78. PB_DS_CLASS_T_DEC
  79. void
  80. PB_DS_CLASS_C_DEC::
  81. clear()
  82. {
  83.   PB_DS_STRUCT_ONLY_ASSERT_VALID((*this))
  84.   clear_imp(m_p_head->m_p_parent);
  85.   m_size = 0;
  86.   initialize();
  87.   _GLIBCXX_DEBUG_ONLY(debug_base::clear();)
  88.   PB_DS_STRUCT_ONLY_ASSERT_VALID((*this))
  89. }
  90.  
  91. PB_DS_CLASS_T_DEC
  92. void
  93. PB_DS_CLASS_C_DEC::
  94. clear_imp(node_pointer p_nd)
  95. {
  96.   if (p_nd == 0)
  97.     return;
  98.  
  99.   clear_imp(p_nd->m_p_left);
  100.   clear_imp(p_nd->m_p_right);
  101.   p_nd->~node();
  102.   s_node_allocator.deallocate(p_nd, 1);
  103. }
  104.