libstdc++: forward_list Source File

libstdc++

forward_list
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1// <forward_list> -*- C++ -*-
2
3// Copyright (C) 2008-2026 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
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/** @file include/forward_list
26 * This is a Standard C++ Library header.
27 */
28
29#ifndef _GLIBCXX_FORWARD_LIST
30#define _GLIBCXX_FORWARD_LIST 1
31
32#ifdef _GLIBCXX_SYSHDR
33#pragma GCC system_header
34#endif
35
36#include <bits/requires_hosted.h> // containers
37
38#if __cplusplus < 201103L
39# include <bits/c++0x_warning.h>
40#else
41
42#include <bits/forward_list.h>
43#include <bits/range_access.h>
44#include <bits/forward_list.tcc>
45
46#ifdef _GLIBCXX_DEBUG
47# include <debug/forward_list>
48#endif
49
50#define __glibcxx_want_algorithm_default_value_type
51#define __glibcxx_want_allocator_traits_is_always_equal
52#define __glibcxx_want_containers_ranges
53#define __glibcxx_want_erase_if
54#define __glibcxx_want_hardened_forward_list
55#define __glibcxx_want_incomplete_container_elements
56#define __glibcxx_want_list_remove_return_type
57#define __glibcxx_want_nonmember_container_access
58#include <bits/version.h>
59
60#if __cplusplus >= 201703L
61#include <bits/memory_resource.h>
62namespace std _GLIBCXX_VISIBILITY(default)
63{
64_GLIBCXX_BEGIN_NAMESPACE_VERSION
65 namespace pmr
66 {
67 template<typename _Tp>
68 using forward_list = std::forward_list<_Tp, polymorphic_allocator<_Tp>>;
69 } // namespace pmr
70_GLIBCXX_END_NAMESPACE_VERSION
71} // namespace std
72#endif // C++17
73
74#ifdef __cpp_lib_erase_if // C++ >= 20 && HOSTED
75namespace std _GLIBCXX_VISIBILITY(default)
76{
77_GLIBCXX_BEGIN_NAMESPACE_VERSION
78 template<typename _Tp, typename _Alloc, typename _Predicate>
79 inline typename _GLIBCXX_STD_C::forward_list<_Tp, _Alloc>::size_type
80 erase_if(_GLIBCXX_STD_C::forward_list<_Tp, _Alloc>& __cont, _Predicate __pred)
81 { return __cont.remove_if(__pred); }
82
83 template<typename _Tp, typename _Alloc,
84 typename _Up _GLIBCXX26_DEF_VAL_T(_Tp)>
85 inline typename _GLIBCXX_STD_C::forward_list<_Tp, _Alloc>::size_type
86 erase(_GLIBCXX_STD_C::forward_list<_Tp, _Alloc>& __cont, const _Up& __value)
87 {
88 // _GLIBCXX_RESOLVE_LIB_DEFECTS
89 // 4135. helper lambda of std::erase for list should specify return type
90 return std::erase_if(__cont, [&](const auto& __elem) -> bool {
91 return __elem == __value;
92 });
93 }
94_GLIBCXX_END_NAMESPACE_VERSION
95} // namespace std
96#endif // __cpp_lib_erase_if
97
98#endif // C++11
99
100#endif // _GLIBCXX_FORWARD_LIST
c++0x_warning.h
range_access.h
version.h
forward_list.h
forward_list.tcc
memory_resource.h
requires_hosted.h
std
ISO C++ entities toplevel namespace is std.
forward_list