3 // Copyright (C) 2005, 2006, 2007 Free Software Foundation, Inc.
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 2, or (at your option) any later
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.
16 // You should have received a copy of the GNU General Public License
17 // along with this library; see the file COPYING. If not, write to
18 // the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
19 // MA 02111-1307, USA.
21 // As a special exception, you may use this file as part of a free
22 // software library without restriction. Specifically, if other files
23 // instantiate templates or use macros or inline functions from this
24 // file, or you compile this file and link it with other files to
25 // produce an executable, this file does not by itself cause the
26 // resulting executable to be covered by the GNU General Public
27 // License. This exception does not however invalidate any other
28 // reasons why the executable file might be covered by the GNU General
31 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
33 // Permission to use, copy, modify, sell, and distribute this software
34 // is hereby granted without fee, provided that the above copyright
35 // notice appears in all copies, and that both that copyright notice
36 // and this permission notice appear in supporting documentation. None
37 // of the above authors, nor IBM Haifa Research Laboratories, make any
38 // representation about the suitability of this software for any
39 // purpose. It is provided "as is" without express or implied
43 * @file hash_standard_resize_policy_imp.hpp
44 * Contains a resize policy implementation.
49 hash_standard_resize_policy()
50 : m_size(Size_Policy::get_nearest_larger_size(1))
51 { trigger_policy_base::notify_externally_resized(m_size); }
55 hash_standard_resize_policy(const Size_Policy& r_size_policy)
56 : Size_Policy(r_size_policy), m_size(Size_Policy::get_nearest_larger_size(1))
57 { trigger_policy_base::notify_externally_resized(m_size); }
61 hash_standard_resize_policy(const Size_Policy& r_size_policy,
62 const Trigger_Policy& r_trigger_policy)
63 : Size_Policy(r_size_policy), Trigger_Policy(r_trigger_policy),
64 m_size(Size_Policy::get_nearest_larger_size(1))
65 { trigger_policy_base::notify_externally_resized(m_size); }
69 ~hash_standard_resize_policy()
75 swap(PB_DS_CLASS_C_DEC& other)
77 trigger_policy_base::swap(other);
78 size_policy_base::swap(other);
79 std::swap(m_size, other.m_size);
85 notify_find_search_start()
86 { trigger_policy_base::notify_find_search_start(); }
91 notify_find_search_collision()
92 { trigger_policy_base::notify_find_search_collision(); }
97 notify_find_search_end()
98 { trigger_policy_base::notify_find_search_end(); }
103 notify_insert_search_start()
104 { trigger_policy_base::notify_insert_search_start(); }
109 notify_insert_search_collision()
110 { trigger_policy_base::notify_insert_search_collision(); }
115 notify_insert_search_end()
116 { trigger_policy_base::notify_insert_search_end(); }
121 notify_erase_search_start()
122 { trigger_policy_base::notify_erase_search_start(); }
127 notify_erase_search_collision()
128 { trigger_policy_base::notify_erase_search_collision(); }
133 notify_erase_search_end()
134 { trigger_policy_base::notify_erase_search_end(); }
139 notify_inserted(size_type num_e)
140 { trigger_policy_base::notify_inserted(num_e); }
145 notify_erased(size_type num_e)
146 { trigger_policy_base::notify_erased(num_e); }
152 { trigger_policy_base::notify_cleared(); }
157 is_resize_needed() const
158 { return trigger_policy_base::is_resize_needed(); }
161 typename PB_DS_CLASS_C_DEC::size_type
163 get_new_size(size_type size, size_type num_used_e) const
165 if (trigger_policy_base::is_grow_needed(size, num_used_e))
166 return size_policy_base::get_nearest_larger_size(size);
167 return size_policy_base::get_nearest_smaller_size(size);
173 notify_resized(size_type new_size)
175 trigger_policy_base::notify_resized(new_size);
180 inline typename PB_DS_CLASS_C_DEC::size_type
182 get_actual_size() const
184 PB_DS_STATIC_ASSERT(access, external_size_access);
191 resize(size_type new_size)
193 PB_DS_STATIC_ASSERT(access, external_size_access);
194 size_type actual_size = size_policy_base::get_nearest_larger_size(1);
195 while (actual_size < new_size)
197 const size_type pot = size_policy_base::get_nearest_larger_size(actual_size);
199 if (pot == actual_size && pot < new_size)
200 __throw_resize_error();
207 const size_type old_size = m_size;
210 do_resize(actual_size - 1);
212 catch(insert_error& )
215 __throw_resize_error();
220 __throw_exception_again;
239 const Trigger_Policy&
241 get_trigger_policy() const
253 get_size_policy() const