libstdc++: insert_fn_imps.hpp Source File

libstdc++

list_update_map_/insert_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 list_update_map_/insert_fn_imps.hpp
38 * Contains implementations of lu_map_.
39 */
40
41#ifdef PB_DS_CLASS_C_DEC
42
43PB_DS_CLASS_T_DEC
44inline std::pair<
45 typename PB_DS_CLASS_C_DEC::point_iterator,
46 bool>
47PB_DS_CLASS_C_DEC::
48insert(const_reference r_val)
49{
50 PB_DS_ASSERT_VALID((*this))
51 entry_pointer p_l = find_imp(PB_DS_V2F(r_val));
52
53 if (p_l != 0)
54 {
55 PB_DS_CHECK_KEY_EXISTS(PB_DS_V2F(r_val))
56 return std::make_pair(point_iterator(&p_l->m_value), false);
57 }
58
59 PB_DS_CHECK_KEY_DOES_NOT_EXIST(PB_DS_V2F(r_val))
60
61 p_l = allocate_new_entry(r_val, traits_base::m_no_throw_copies_indicator);
62 p_l->m_p_next = m_p_l;
63 m_p_l = p_l;
64 PB_DS_ASSERT_VALID((*this))
65 return std::make_pair(point_iterator(&p_l->m_value), true);
66}
67
68PB_DS_CLASS_T_DEC
69inline typename PB_DS_CLASS_C_DEC::entry_pointer
70PB_DS_CLASS_C_DEC::
71allocate_new_entry(const_reference r_val, false_type)
72{
73 entry_pointer p_l = s_entry_allocator.allocate(1);
74 cond_dealtor_t cond(p_l);
75 new (const_cast<void* >(static_cast<const void* >(&p_l->m_value)))
76 value_type(r_val);
77
78 cond.set_no_action();
79 _GLIBCXX_DEBUG_ONLY(debug_base::insert_new(PB_DS_V2F(r_val));)
80 init_entry_metadata(p_l, s_metadata_type_indicator);
81 return p_l;
82}
83
84PB_DS_CLASS_T_DEC
85inline typename PB_DS_CLASS_C_DEC::entry_pointer
86PB_DS_CLASS_C_DEC::
87allocate_new_entry(const_reference r_val, true_type)
88{
89 entry_pointer p_l = s_entry_allocator.allocate(1);
90 new (&p_l->m_value) value_type(r_val);
91 _GLIBCXX_DEBUG_ONLY(debug_base::insert_new(PB_DS_V2F(r_val));)
92 init_entry_metadata(p_l, s_metadata_type_indicator);
93 return p_l;
94}
95
96PB_DS_CLASS_T_DEC
97template<typename Metadata>
98inline void
99PB_DS_CLASS_C_DEC::
100init_entry_metadata(entry_pointer p_l, type_to_type<Metadata>)
101{ new (&p_l->m_update_metadata) Metadata(s_update_policy()); }
102
103PB_DS_CLASS_T_DEC
104inline void
105PB_DS_CLASS_C_DEC::
106init_entry_metadata(entry_pointer, type_to_type<null_type>)
107{ }
108
109#endif
std::make_pair
constexpr pair< typename __decay_and_strip< _T1 >::__type, typename __decay_and_strip< _T2 >::__type > make_pair(_T1 &&__x, _T2 &&__y)
A convenience wrapper for creating a pair from two objects.
Definition stl_pair.h:1169
std
ISO C++ entities toplevel namespace is std.
std::pair
Struct holding two objects (or references) of arbitrary type.
Definition stl_pair.h:307