3 // Copyright (C) 2005-2023 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 3, 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 // 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.
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/>.
25 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
27 // Permission to use, copy, modify, sell, and distribute this software
28 // is hereby granted without fee, provided that the above copyright
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37 * @file cc_hash_table_map_/resize_fn_imps.hpp
38 * Contains implementations of cc_ht_map_'s resize related functions.
41 #ifdef PB_DS_CLASS_C_DEC
48 if (!resize_base::is_resize_needed())
50 resize_imp(resize_base::get_new_size(m_num_e, m_num_used_e));
57 do_resize(size_type len)
58 { resize_imp(resize_base::get_nearest_larger_size(len)); }
63 do_resize_if_needed_no_throw()
65 if (!resize_base::is_resize_needed())
70 resize_imp(resize_base::get_new_size(m_num_e, m_num_used_e));
75 PB_DS_ASSERT_VALID((*this))
81 resize_imp(size_type new_size)
83 PB_DS_ASSERT_VALID((*this))
84 if (new_size == m_num_e)
87 const size_type old_size = m_num_e;
88 entry_pointer_array a_p_entries_resized;
90 // Following line might throw an exception.
91 ranged_hash_fn_base::notify_resized(new_size);
95 // Following line might throw an exception.
96 a_p_entries_resized = s_entry_pointer_allocator.allocate(new_size);
101 ranged_hash_fn_base::notify_resized(old_size);
102 __throw_exception_again;
105 // At this point no exceptions can be thrown.
106 resize_imp_no_exceptions(new_size, a_p_entries_resized, old_size);
107 Resize_Policy::notify_resized(new_size);
108 PB_DS_ASSERT_VALID((*this))
114 resize_imp_no_exceptions(size_type new_size, entry_pointer_array a_p_entries_resized, size_type old_size)
116 std::fill(a_p_entries_resized, a_p_entries_resized + m_num_e,
119 for (size_type pos = 0; pos < old_size; ++pos)
121 entry_pointer p_e = m_entries[pos];
123 p_e = resize_imp_no_exceptions_reassign_pointer(p_e, a_p_entries_resized, traits_base::m_store_extra_indicator);
127 _GLIBCXX_DEBUG_ONLY(assert_entry_pointer_array_valid(a_p_entries_resized,
128 __FILE__, __LINE__);)
129 s_entry_pointer_allocator.deallocate(m_entries, old_size);
130 m_entries = a_p_entries_resized;
131 PB_DS_ASSERT_VALID((*this))
134 #include <ext/pb_ds/detail/cc_hash_table_map_/resize_no_store_hash_fn_imps.hpp>
135 #include <ext/pb_ds/detail/cc_hash_table_map_/resize_store_hash_fn_imps.hpp>