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

   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 }