3 // Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010
4 // Free Software Foundation, Inc.
6 // This file is part of the GNU ISO C++ Library. This library is free
7 // software; you can redistribute it and/or modify it under the terms
8 // of the GNU General Public License as published by the Free Software
9 // Foundation; either version 3, or (at your option) any later
12 // This library is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 // General Public License for more details.
17 // Under Section 7 of GPL version 3, you are granted additional
18 // permissions described in the GCC Runtime Library Exception, version
19 // 3.1, as published by the Free Software Foundation.
21 // You should have received a copy of the GNU General Public License and
22 // a copy of the GCC Runtime Library Exception along with this program;
23 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
24 // <http://www.gnu.org/licenses/>.
26 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
28 // Permission to use, copy, modify, sell, and distribute this software
29 // is hereby granted without fee, provided that the above copyright
30 // notice appears in all copies, and that both that copyright notice
31 // and this permission notice appear in supporting documentation. None
32 // of the above authors, nor IBM Haifa Research Laboratories, make any
33 // representation about the suitability of this software for any
34 // purpose. It is provided "as is" without express or implied
38 * @file resize_fn_imps.hpp
39 * Contains implementations of cc_ht_map_'s resize related functions.
47 if (!resize_base::is_resize_needed())
49 resize_imp(resize_base::get_new_size(m_num_e, m_num_used_e));
56 do_resize(size_type len)
57 { resize_imp(resize_base::get_nearest_larger_size(len)); }
62 do_resize_if_needed_no_throw()
64 if (!resize_base::is_resize_needed())
69 resize_imp(resize_base::get_new_size(m_num_e, m_num_used_e));
74 _GLIBCXX_DEBUG_ONLY(assert_valid();)
80 resize_imp(size_type new_size)
82 _GLIBCXX_DEBUG_ONLY(assert_valid();)
83 if (new_size == m_num_e)
86 const size_type old_size = m_num_e;
87 entry_pointer_array a_p_entries_resized;
89 // Following line might throw an exception.
90 ranged_hash_fn_base::notify_resized(new_size);
94 // Following line might throw an exception.
95 a_p_entries_resized = s_entry_pointer_allocator.allocate(new_size);
100 ranged_hash_fn_base::notify_resized(old_size);
101 __throw_exception_again;
104 // At this point no exceptions can be thrown.
105 resize_imp_no_exceptions(new_size, a_p_entries_resized, old_size);
106 Resize_Policy::notify_resized(new_size);
107 _GLIBCXX_DEBUG_ONLY(assert_valid();)
113 resize_imp_no_exceptions(size_type new_size, entry_pointer_array a_p_entries_resized, size_type old_size)
115 std::fill(a_p_entries_resized, a_p_entries_resized + m_num_e,
118 for (size_type pos = 0; pos < old_size; ++pos)
120 entry_pointer p_e = m_entries[pos];
122 p_e = resize_imp_no_exceptions_reassign_pointer(p_e, a_p_entries_resized, traits_base::m_store_extra_indicator);
126 _GLIBCXX_DEBUG_ONLY(assert_entry_pointer_array_valid(a_p_entries_resized);)
127 s_entry_pointer_allocator.deallocate(m_entries, old_size);
128 m_entries = a_p_entries_resized;
129 _GLIBCXX_DEBUG_ONLY(assert_valid();)
132 #include <ext/pb_ds/detail/cc_hash_table_map_/resize_no_store_hash_fn_imps.hpp>
133 #include <ext/pb_ds/detail/cc_hash_table_map_/resize_store_hash_fn_imps.hpp>