libstdc++
deque
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1// <deque> -*- C++ -*-
2
3// Copyright (C) 2001-2024 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
7// terms of the GNU General Public License as published by the
8// Free Software Foundation; either version 3, or (at your option)
9// any later version.
10
11// This library is distributed in the hope that it will be useful,
12// but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14// GNU 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/*
26 *
27 * Copyright (c) 1994
28 * Hewlett-Packard Company
29 *
30 * Permission to use, copy, modify, distribute and sell this software
31 * and its documentation for any purpose is hereby granted without fee,
32 * provided that the above copyright notice appear in all copies and
33 * that both that copyright notice and this permission notice appear
34 * in supporting documentation. Hewlett-Packard Company makes no
35 * representations about the suitability of this software for any
36 * purpose. It is provided "as is" without express or implied warranty.
37 *
38 *
39 * Copyright (c) 1997
40 * Silicon Graphics Computer Systems, Inc.
41 *
42 * Permission to use, copy, modify, distribute and sell this software
43 * and its documentation for any purpose is hereby granted without fee,
44 * provided that the above copyright notice appear in all copies and
45 * that both that copyright notice and this permission notice appear
46 * in supporting documentation. Silicon Graphics makes no
47 * representations about the suitability of this software for any
48 * purpose. It is provided "as is" without express or implied warranty.
49 */
50
51/** @file include/deque
52 * This is a Standard C++ Library header.
53 */
54
55#ifndef _GLIBCXX_DEQUE
56#define _GLIBCXX_DEQUE 1
57
58#ifdef _GLIBCXX_SYSHDR
59#pragma GCC system_header
60#endif
61
62#include <bits/requires_hosted.h> // containers are hosted only
63
64#include <bits/stl_algobase.h>
65#include <bits/allocator.h>
66#include <bits/stl_construct.h>
67#include <bits/stl_uninitialized.h>
68#include <bits/stl_deque.h>
69#include <bits/refwrap.h>
70#include <bits/range_access.h>
71#include <bits/deque.tcc>
72
73#define __glibcxx_want_algorithm_default_value_type
74#define __glibcxx_want_allocator_traits_is_always_equal
75#define __glibcxx_want_erase_if
76#define __glibcxx_want_nonmember_container_access
77#include <bits/version.h>
78
79#ifdef _GLIBCXX_DEBUG
80# include <debug/deque>
81#endif
82
83#if __cplusplus >= 201703L
84#include <bits/memory_resource.h>
85namespace std _GLIBCXX_VISIBILITY(default)
86{
87_GLIBCXX_BEGIN_NAMESPACE_VERSION
88 namespace pmr
89 {
90 template<typename _Tp>
91 using deque = std::deque<_Tp, polymorphic_allocator<_Tp>>;
92 } // namespace pmr
93_GLIBCXX_END_NAMESPACE_VERSION
94} // namespace std
95#endif // C++17
96
97#ifdef __cpp_lib_erase_if // C++ >= 20 && erase_if
98namespace std _GLIBCXX_VISIBILITY(default)
99{
100_GLIBCXX_BEGIN_NAMESPACE_VERSION
101
102 template<typename _Tp, typename _Alloc, typename _Predicate>
103 inline typename deque<_Tp, _Alloc>::size_type
104 erase_if(deque<_Tp, _Alloc>& __cont, _Predicate __pred)
105 {
106 using namespace __gnu_cxx;
107 _GLIBCXX_STD_C::deque<_Tp, _Alloc>& __ucont = __cont;
108 const auto __osz = __cont.size();
109 const auto __end = __ucont.end();
110 auto __removed = std::__remove_if(__ucont.begin(), __end,
111 __ops::__pred_iter(std::ref(__pred)));
112 if (__removed != __end)
113 {
114 __cont.erase(__niter_wrap(__cont.begin(), __removed),
115 __cont.end());
116 return __osz - __cont.size();
117 }
118
119 return 0;
120 }
121
122 template<typename _Tp, typename _Alloc,
123 typename _Up _GLIBCXX26_DEF_VAL_T(_Tp)>
124 inline typename deque<_Tp, _Alloc>::size_type
125 erase(deque<_Tp, _Alloc>& __cont, const _Up& __value)
126 {
127 using namespace __gnu_cxx;
128 _GLIBCXX_STD_C::deque<_Tp, _Alloc>& __ucont = __cont;
129 const auto __osz = __cont.size();
130 const auto __end = __ucont.end();
131 auto __removed = std::__remove_if(__ucont.begin(), __end,
132 __ops::__iter_equals_val(__value));
133 if (__removed != __end)
134 {
135 __cont.erase(__niter_wrap(__cont.begin(), __removed),
136 __cont.end());
137 return __osz - __cont.size();
138 }
139
140 return 0;
141 }
142_GLIBCXX_END_NAMESPACE_VERSION
143} // namespace std
144#endif // __cpp_lib_erase_if
145
146#endif /* _GLIBCXX_DEQUE */