libstdc++
cc_hash_table_map_/constructor_destructor_fn_imps.hpp
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1 // -*- C++ -*-
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3 // Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011
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26 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
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36 
37 /**
38  * @file cc_hash_table_map_/constructor_destructor_fn_imps.hpp
39  * Contains implementations of cc_ht_map_'s constructors, destructor,
40  * and related functions.
41  */
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::entry_pointer_allocator
49 PB_DS_CLASS_C_DEC::s_entry_pointer_allocator;
50 
51 PB_DS_CLASS_T_DEC
52 template<typename It>
53 void
54 PB_DS_CLASS_C_DEC::
55 copy_from_range(It first_it, It last_it)
56 {
57  while (first_it != last_it)
58  insert(*(first_it++));
59 }
60 
61 PB_DS_CLASS_T_DEC
62 PB_DS_CLASS_C_DEC::
63 PB_DS_CC_HASH_NAME() :
64  ranged_hash_fn_base(resize_base::get_nearest_larger_size(1)),
65  m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
66  m_entries(s_entry_pointer_allocator.allocate(m_num_e))
67 {
68  initialize();
69  PB_DS_ASSERT_VALID((*this))
70 }
71 
72 PB_DS_CLASS_T_DEC
73 PB_DS_CLASS_C_DEC::
74 PB_DS_CC_HASH_NAME(const Hash_Fn& r_hash_fn) :
75  ranged_hash_fn_base(resize_base::get_nearest_larger_size(1), r_hash_fn),
76  m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
77  m_entries(s_entry_pointer_allocator.allocate(m_num_e))
78 {
79  initialize();
80  PB_DS_ASSERT_VALID((*this))
81 }
82 
83 PB_DS_CLASS_T_DEC
84 PB_DS_CLASS_C_DEC::
85 PB_DS_CC_HASH_NAME(const Hash_Fn& r_hash_fn, const Eq_Fn& r_eq_fn) :
86  PB_DS_HASH_EQ_FN_C_DEC(r_eq_fn),
87  ranged_hash_fn_base(resize_base::get_nearest_larger_size(1), r_hash_fn),
88  m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
89  m_entries(s_entry_pointer_allocator.allocate(m_num_e))
90 {
91  std::fill(m_entries, m_entries + m_num_e, (entry_pointer)0);
92  Resize_Policy::notify_cleared();
93  ranged_hash_fn_base::notify_resized(m_num_e);
94  PB_DS_ASSERT_VALID((*this))
95 }
96 
97 PB_DS_CLASS_T_DEC
98 PB_DS_CLASS_C_DEC::
99 PB_DS_CC_HASH_NAME(const Hash_Fn& r_hash_fn, const Eq_Fn& r_eq_fn,
100  const Comb_Hash_Fn& r_comb_hash_fn) :
101  PB_DS_HASH_EQ_FN_C_DEC(r_eq_fn),
102  ranged_hash_fn_base(resize_base::get_nearest_larger_size(1),
103  r_hash_fn, r_comb_hash_fn),
104  m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
105  m_entries(s_entry_pointer_allocator.allocate(m_num_e))
106 {
107  initialize();
108  PB_DS_ASSERT_VALID((*this))
109 }
110 
111 PB_DS_CLASS_T_DEC
112 PB_DS_CLASS_C_DEC::
113 PB_DS_CC_HASH_NAME(const Hash_Fn& r_hash_fn, const Eq_Fn& r_eq_fn,
114  const Comb_Hash_Fn& r_comb_hash_fn,
115  const Resize_Policy& r_resize_policy) :
116  PB_DS_HASH_EQ_FN_C_DEC(r_eq_fn),
117  Resize_Policy(r_resize_policy),
118  ranged_hash_fn_base(resize_base::get_nearest_larger_size(1),
119  r_hash_fn, r_comb_hash_fn),
120  m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
121  m_entries(s_entry_pointer_allocator.allocate(m_num_e))
122 {
123  initialize();
124  PB_DS_ASSERT_VALID((*this))
125 }
126 
127 PB_DS_CLASS_T_DEC
128 PB_DS_CLASS_C_DEC::
129 PB_DS_CC_HASH_NAME(const PB_DS_CLASS_C_DEC& other) :
130  PB_DS_HASH_EQ_FN_C_DEC(other),
131  resize_base(other), ranged_hash_fn_base(other),
132  m_num_e(resize_base::get_nearest_larger_size(1)), m_num_used_e(0),
133  m_entries(s_entry_pointer_allocator.allocate(m_num_e))
134 {
135  initialize();
136  PB_DS_ASSERT_VALID((*this))
137  __try
138  {
139  copy_from_range(other.begin(), other.end());
140  }
141  __catch(...)
142  {
143  deallocate_all();
144  __throw_exception_again;
145  }
146  PB_DS_ASSERT_VALID((*this))
147 }
148 
149 PB_DS_CLASS_T_DEC
150 PB_DS_CLASS_C_DEC::
151 ~PB_DS_CC_HASH_NAME()
152 { deallocate_all(); }
153 
154 PB_DS_CLASS_T_DEC
155 void
156 PB_DS_CLASS_C_DEC::
157 swap(PB_DS_CLASS_C_DEC& other)
158 {
159  PB_DS_ASSERT_VALID((*this))
160  PB_DS_ASSERT_VALID(other)
161 
162  std::swap(m_entries, other.m_entries);
163  std::swap(m_num_e, other.m_num_e);
164  std::swap(m_num_used_e, other.m_num_used_e);
165  ranged_hash_fn_base::swap(other);
166  hash_eq_fn_base::swap(other);
167  resize_base::swap(other);
168 
169  _GLIBCXX_DEBUG_ONLY(debug_base::swap(other));
170  PB_DS_ASSERT_VALID((*this))
171  PB_DS_ASSERT_VALID(other)
172 }
173 
174 PB_DS_CLASS_T_DEC
175 void
176 PB_DS_CLASS_C_DEC::
177 deallocate_all()
178 {
179  clear();
180  s_entry_pointer_allocator.deallocate(m_entries, m_num_e);
181 }
182 
183 PB_DS_CLASS_T_DEC
184 void
185 PB_DS_CLASS_C_DEC::
186 initialize()
187 {
188  std::fill(m_entries, m_entries + m_num_e, entry_pointer(0));
189  Resize_Policy::notify_resized(m_num_e);
190  Resize_Policy::notify_cleared();
191  ranged_hash_fn_base::notify_resized(m_num_e);
192 }