libstdc++: erase_fn_imps.hpp Source File

libstdc++

gp_hash_table_map_/erase_fn_imps.hpp
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1// -*- C++ -*-
2
3// Copyright (C) 2005-2026 Free Software Foundation, Inc.
4//
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
9// version.
10
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.
15
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.
19
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/>.
24
25// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
26
27// Permission to use, copy, modify, sell, and distribute this software
28// is hereby granted without fee, provided that the above copyright
29// notice appears in all copies, and that both that copyright notice
30// and this permission notice appear in supporting documentation. None
31// of the above authors, nor IBM Haifa Research Laboratories, make any
32// representation about the suitability of this software for any
33// purpose. It is provided "as is" without express or implied
34// warranty.
35
36/**
37 * @file gp_hash_table_map_/erase_fn_imps.hpp
38 * Contains implementations of gp_ht_map_'s erase related functions.
39 */
40
41#ifdef PB_DS_CLASS_C_DEC
42
43PB_DS_CLASS_T_DEC
44inline void
45PB_DS_CLASS_C_DEC::
46erase_entry(entry_pointer p_e)
47{
48 _GLIBCXX_DEBUG_ASSERT(p_e->m_stat = valid_entry_status);
49 _GLIBCXX_DEBUG_ONLY(debug_base::erase_existing(PB_DS_V2F(p_e->m_value));)
50 p_e->m_value.~value_type();
51 p_e->m_stat = erased_entry_status;
52 _GLIBCXX_DEBUG_ASSERT(m_num_used_e > 0);
53 resize_base::notify_erased(--m_num_used_e);
54}
55
56PB_DS_CLASS_T_DEC
57void
58PB_DS_CLASS_C_DEC::
59clear()
60{
61 for (size_type pos = 0; pos < m_num_e; ++pos)
62 {
63 entry_pointer p_e = &m_entries[pos];
64 if (p_e->m_stat == valid_entry_status)
65 erase_entry(p_e);
66 }
67 do_resize_if_needed_no_throw();
68 resize_base::notify_cleared();
69}
70
71PB_DS_CLASS_T_DEC
72template<typename Pred>
73inline typename PB_DS_CLASS_C_DEC::size_type
74PB_DS_CLASS_C_DEC::
75erase_if(Pred pred)
76{
77 PB_DS_ASSERT_VALID((*this))
78 size_type num_ersd = 0;
79 for (size_type pos = 0; pos < m_num_e; ++pos)
80 {
81 entry_pointer p_e = &m_entries[pos];
82 if (p_e->m_stat == valid_entry_status)
83 if (pred(p_e->m_value))
84 {
85 ++num_ersd;
86 erase_entry(p_e);
87 }
88 }
89
90 do_resize_if_needed_no_throw();
91 PB_DS_ASSERT_VALID((*this))
92 return num_ersd;
93}
94
95PB_DS_CLASS_T_DEC
96inline bool
97PB_DS_CLASS_C_DEC::
98erase(key_const_reference r_key)
99{ return erase_imp(r_key, traits_base::m_store_extra_indicator); }
100
101#include <ext/pb_ds/detail/gp_hash_table_map_/erase_no_store_hash_fn_imps.hpp>
102#include <ext/pb_ds/detail/gp_hash_table_map_/erase_store_hash_fn_imps.hpp>
103#endif
erase_no_store_hash_fn_imps.hpp
erase_store_hash_fn_imps.hpp