libstdc++
binary_heap_/constructors_destructor_fn_imps.hpp
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3 // Copyright (C) 2005, 2006, 2007, 2008, 2009, 2011
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26 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
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36 
37 /**
38  * @file binary_heap_/constructors_destructor_fn_imps.hpp
39  * Contains an implementation class for binary_heap_.
40  */
41 
42 PB_DS_CLASS_T_DEC
43 typename PB_DS_CLASS_C_DEC::entry_allocator
44 PB_DS_CLASS_C_DEC::s_entry_allocator;
45 
46 PB_DS_CLASS_T_DEC
47 typename PB_DS_CLASS_C_DEC::value_allocator
48 PB_DS_CLASS_C_DEC::s_value_allocator;
49 
50 PB_DS_CLASS_T_DEC
51 typename PB_DS_CLASS_C_DEC::no_throw_copies_t
52 PB_DS_CLASS_C_DEC::s_no_throw_copies_ind;
53 
54 PB_DS_CLASS_T_DEC
55 template<typename It>
56 void
57 PB_DS_CLASS_C_DEC::
58 copy_from_range(It first_it, It last_it)
59 {
60  while (first_it != last_it)
61  {
62  insert_value(*first_it, s_no_throw_copies_ind);
63  ++first_it;
64  }
65  make_heap();
66  PB_DS_ASSERT_VALID((*this))
67 }
68 
69 PB_DS_CLASS_T_DEC
70 PB_DS_CLASS_C_DEC::
71 binary_heap()
72 : m_size(0), m_actual_size(resize_policy::min_size),
73  m_a_entries(s_entry_allocator.allocate(m_actual_size))
74 { PB_DS_ASSERT_VALID((*this)) }
75 
76 PB_DS_CLASS_T_DEC
77 PB_DS_CLASS_C_DEC::
78 binary_heap(const Cmp_Fn& r_cmp_fn)
79 : entry_cmp(r_cmp_fn), m_size(0), m_actual_size(resize_policy::min_size),
80  m_a_entries(s_entry_allocator.allocate(m_actual_size))
81 { PB_DS_ASSERT_VALID((*this)) }
82 
83 PB_DS_CLASS_T_DEC
84 PB_DS_CLASS_C_DEC::
85 binary_heap(const PB_DS_CLASS_C_DEC& other)
86 : entry_cmp(other), resize_policy(other), m_size(0),
87  m_actual_size(other.m_actual_size),
88  m_a_entries(s_entry_allocator.allocate(m_actual_size))
89 {
90  PB_DS_ASSERT_VALID(other)
91  _GLIBCXX_DEBUG_ASSERT(m_a_entries != other.m_a_entries);
92 
93  __try
94  {
95  copy_from_range(other.begin(), other.end());
96  }
97  __catch(...)
98  {
99  for (size_type i = 0; i < m_size; ++i)
100  erase_at(m_a_entries, i, s_no_throw_copies_ind);
101 
102  s_entry_allocator.deallocate(m_a_entries, m_actual_size);
103  __throw_exception_again;
104  }
105  PB_DS_ASSERT_VALID((*this))
106 }
107 
108 PB_DS_CLASS_T_DEC
109 void
110 PB_DS_CLASS_C_DEC::
111 swap(PB_DS_CLASS_C_DEC& other)
112 {
113  PB_DS_ASSERT_VALID((*this))
114  PB_DS_ASSERT_VALID(other)
115  _GLIBCXX_DEBUG_ASSERT(m_a_entries != other.m_a_entries);
116  value_swap(other);
117  std::swap((entry_cmp&)(*this), (entry_cmp&)other);
118  PB_DS_ASSERT_VALID((*this))
119  PB_DS_ASSERT_VALID(other)
120 }
121 
122 PB_DS_CLASS_T_DEC
123 void
124 PB_DS_CLASS_C_DEC::
125 value_swap(PB_DS_CLASS_C_DEC& other)
126 {
127  std::swap(m_a_entries, other.m_a_entries);
128  std::swap(m_size, other.m_size);
129  std::swap(m_actual_size, other.m_actual_size);
130  static_cast<resize_policy*>(this)->swap(other);
131 }
132 
133 PB_DS_CLASS_T_DEC
134 PB_DS_CLASS_C_DEC::
135 ~binary_heap()
136 {
137  for (size_type i = 0; i < m_size; ++i)
138  erase_at(m_a_entries, i, s_no_throw_copies_ind);
139  s_entry_allocator.deallocate(m_a_entries, m_actual_size);
140 }