libstdc++-v3/include/ext/pb_ds/detail/binary_heap_/constructors_destructor_fn_imps.hpp

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005-2020 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 #ifdef PB_DS_CLASS_C_DEC
  42
  43 PB_DS_CLASS_T_DEC
  44 typename PB_DS_CLASS_C_DEC::entry_allocator
  45 PB_DS_CLASS_C_DEC::s_entry_allocator;
  46
  47 PB_DS_CLASS_T_DEC
  48 typename PB_DS_CLASS_C_DEC::value_allocator
  49 PB_DS_CLASS_C_DEC::s_value_allocator;
  50
  51 PB_DS_CLASS_T_DEC
  52 typename PB_DS_CLASS_C_DEC::no_throw_copies_t
  53 PB_DS_CLASS_C_DEC::s_no_throw_copies_ind;
  54
  55 PB_DS_CLASS_T_DEC
  56 template<typename It>
  57 void
  58 PB_DS_CLASS_C_DEC::
  59 copy_from_range(It first_it, It last_it)
  60 {
  61   while (first_it != last_it)
  62     {
  63       insert_value(*first_it, s_no_throw_copies_ind);
  64       ++first_it;
  65     }
  66   make_heap();
  67  PB_DS_ASSERT_VALID((*this))
  68 }
  69
  70 PB_DS_CLASS_T_DEC
  71 PB_DS_CLASS_C_DEC::
  72 binary_heap()
  73 : m_size(0), m_actual_size(resize_policy::min_size),
  74   m_a_entries(s_entry_allocator.allocate(m_actual_size))
  75 { PB_DS_ASSERT_VALID((*this)) }
  76
  77 PB_DS_CLASS_T_DEC
  78 PB_DS_CLASS_C_DEC::
  79 binary_heap(const Cmp_Fn& r_cmp_fn)
  80 : entry_cmp(r_cmp_fn), m_size(0), m_actual_size(resize_policy::min_size),
  81   m_a_entries(s_entry_allocator.allocate(m_actual_size))
  82 { PB_DS_ASSERT_VALID((*this)) }
  83
  84 PB_DS_CLASS_T_DEC
  85 PB_DS_CLASS_C_DEC::
  86 binary_heap(const PB_DS_CLASS_C_DEC& other)
  87 : entry_cmp(other), resize_policy(other), m_size(0),
  88   m_actual_size(other.m_actual_size),
  89   m_a_entries(s_entry_allocator.allocate(m_actual_size))
  90 {
  91   PB_DS_ASSERT_VALID(other)
  92   _GLIBCXX_DEBUG_ASSERT(m_a_entries != other.m_a_entries);
  93
  94   __try
  95     {
  96       copy_from_range(other.begin(), other.end());
  97     }
  98   __catch(...)
  99     {
 100       for (size_type i = 0; i < m_size; ++i)
 101         erase_at(m_a_entries, i, s_no_throw_copies_ind);
 102
 103       s_entry_allocator.deallocate(m_a_entries, m_actual_size);
 104       __throw_exception_again;
 105     }
 106   PB_DS_ASSERT_VALID((*this))
 107 }
 108
 109 PB_DS_CLASS_T_DEC
 110 void
 111 PB_DS_CLASS_C_DEC::
 112 swap(PB_DS_CLASS_C_DEC& other)
 113 {
 114   PB_DS_ASSERT_VALID((*this))
 115   PB_DS_ASSERT_VALID(other)
 116   _GLIBCXX_DEBUG_ASSERT(m_a_entries != other.m_a_entries);
 117   value_swap(other);
 118   std::swap((entry_cmp&)(*this), (entry_cmp&)other);
 119   PB_DS_ASSERT_VALID((*this))
 120   PB_DS_ASSERT_VALID(other)
 121 }
 122
 123 PB_DS_CLASS_T_DEC
 124 void
 125 PB_DS_CLASS_C_DEC::
 126 value_swap(PB_DS_CLASS_C_DEC& other)
 127 {
 128   std::swap(m_a_entries, other.m_a_entries);
 129   std::swap(m_size, other.m_size);
 130   std::swap(m_actual_size, other.m_actual_size);
 131   static_cast<resize_policy*>(this)->swap(other);
 132 }
 133
 134 PB_DS_CLASS_T_DEC
 135 PB_DS_CLASS_C_DEC::
 136 ~binary_heap()
 137 {
 138   for (size_type i = 0; i < m_size; ++i)
 139     erase_at(m_a_entries, i, s_no_throw_copies_ind);
 140   s_entry_allocator.deallocate(m_a_entries, m_actual_size);
 141 }
 142 #endif