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  1. // -*- C++ -*-
  2.  
  3. // Copyright (C) 2005-2013 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 binary_heap_/constructors_destructor_fn_imps.hpp
  38.  * Contains an implementation class for binary_heap_.
  39.  */
  40.  
  41. PB_DS_CLASS_T_DEC
  42. typename PB_DS_CLASS_C_DEC::entry_allocator
  43. PB_DS_CLASS_C_DEC::s_entry_allocator;
  44.  
  45. PB_DS_CLASS_T_DEC
  46. typename PB_DS_CLASS_C_DEC::value_allocator
  47. PB_DS_CLASS_C_DEC::s_value_allocator;
  48.  
  49. PB_DS_CLASS_T_DEC
  50. typename PB_DS_CLASS_C_DEC::no_throw_copies_t
  51. PB_DS_CLASS_C_DEC::s_no_throw_copies_ind;
  52.  
  53. PB_DS_CLASS_T_DEC
  54. template<typename It>
  55. void
  56. PB_DS_CLASS_C_DEC::
  57. copy_from_range(It first_it, It last_it)
  58. {
  59.   while (first_it != last_it)
  60.     {
  61.       insert_value(*first_it, s_no_throw_copies_ind);
  62.       ++first_it;
  63.     }
  64.   make_heap();
  65.  PB_DS_ASSERT_VALID((*this))
  66. }
  67.  
  68. PB_DS_CLASS_T_DEC
  69. PB_DS_CLASS_C_DEC::
  70. binary_heap()
  71. : m_size(0), m_actual_size(resize_policy::min_size),
  72.   m_a_entries(s_entry_allocator.allocate(m_actual_size))
  73. { PB_DS_ASSERT_VALID((*this)) }
  74.  
  75. PB_DS_CLASS_T_DEC
  76. PB_DS_CLASS_C_DEC::
  77. binary_heap(const Cmp_Fn& r_cmp_fn)
  78. : entry_cmp(r_cmp_fn), m_size(0), m_actual_size(resize_policy::min_size),
  79.   m_a_entries(s_entry_allocator.allocate(m_actual_size))
  80. { PB_DS_ASSERT_VALID((*this)) }
  81.  
  82. PB_DS_CLASS_T_DEC
  83. PB_DS_CLASS_C_DEC::
  84. binary_heap(const PB_DS_CLASS_C_DEC& other)
  85. : entry_cmp(other), resize_policy(other), m_size(0),
  86.   m_actual_size(other.m_actual_size),
  87.   m_a_entries(s_entry_allocator.allocate(m_actual_size))
  88. {
  89.   PB_DS_ASSERT_VALID(other)
  90.   _GLIBCXX_DEBUG_ASSERT(m_a_entries != other.m_a_entries);
  91.  
  92.   __try
  93.     {
  94.       copy_from_range(other.begin(), other.end());
  95.     }
  96.   __catch(...)
  97.     {
  98.       for (size_type i = 0; i < m_size; ++i)
  99.         erase_at(m_a_entries, i, s_no_throw_copies_ind);
  100.  
  101.       s_entry_allocator.deallocate(m_a_entries, m_actual_size);
  102.       __throw_exception_again;
  103.     }
  104.   PB_DS_ASSERT_VALID((*this))
  105. }
  106.  
  107. PB_DS_CLASS_T_DEC
  108. void
  109. PB_DS_CLASS_C_DEC::
  110. swap(PB_DS_CLASS_C_DEC& other)
  111. {
  112.   PB_DS_ASSERT_VALID((*this))
  113.   PB_DS_ASSERT_VALID(other)
  114.   _GLIBCXX_DEBUG_ASSERT(m_a_entries != other.m_a_entries);
  115.   value_swap(other);
  116.   std::swap((entry_cmp&)(*this), (entry_cmp&)other);
  117.   PB_DS_ASSERT_VALID((*this))
  118.   PB_DS_ASSERT_VALID(other)
  119. }
  120.  
  121. PB_DS_CLASS_T_DEC
  122. void
  123. PB_DS_CLASS_C_DEC::
  124. value_swap(PB_DS_CLASS_C_DEC& other)
  125. {
  126.   std::swap(m_a_entries, other.m_a_entries);
  127.   std::swap(m_size, other.m_size);
  128.   std::swap(m_actual_size, other.m_actual_size);
  129.   static_cast<resize_policy*>(this)->swap(other);
  130. }
  131.  
  132. PB_DS_CLASS_T_DEC
  133. PB_DS_CLASS_C_DEC::
  134. ~binary_heap()
  135. {
  136.   for (size_type i = 0; i < m_size; ++i)
  137.     erase_at(m_a_entries, i, s_no_throw_copies_ind);
  138.   s_entry_allocator.deallocate(m_a_entries, m_actual_size);
  139. }
  140.