libstdc++
forward_list
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1 // <forward_list> -*- C++ -*-
2 
3 // Copyright (C) 2008-2024 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 /** @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 #pragma GCC system_header
33 
34 #include <bits/requires_hosted.h> // containers
35 
36 #if __cplusplus < 201103L
37 # include <bits/c++0x_warning.h>
38 #else
39 
40 #include <bits/forward_list.h>
41 #include <bits/range_access.h>
42 #include <bits/forward_list.tcc>
43 
44 #ifdef _GLIBCXX_DEBUG
45 # include <debug/forward_list>
46 #endif
47 
48 #define __glibcxx_want_erase_if
49 #define __glibcxx_want_incomplete_container_elements
50 #define __glibcxx_want_list_remove_return_type
51 #define __glibcxx_want_nonmember_container_access
52 #include <bits/version.h>
53 
54 #if __cplusplus >= 201703L
55 #include <bits/memory_resource.h>
56 namespace std _GLIBCXX_VISIBILITY(default)
57 {
58 _GLIBCXX_BEGIN_NAMESPACE_VERSION
59  namespace pmr
60  {
61  template<typename _Tp>
62  using forward_list = std::forward_list<_Tp, polymorphic_allocator<_Tp>>;
63  } // namespace pmr
64 _GLIBCXX_END_NAMESPACE_VERSION
65 } // namespace std
66 #endif // C++17
67 
68 #ifdef __cpp_lib_erase_if // C++ >= 20 && HOSTED
69 namespace std _GLIBCXX_VISIBILITY(default)
70 {
71 _GLIBCXX_BEGIN_NAMESPACE_VERSION
72  template<typename _Tp, typename _Alloc, typename _Predicate>
73  inline typename forward_list<_Tp, _Alloc>::size_type
74  erase_if(forward_list<_Tp, _Alloc>& __cont, _Predicate __pred)
75  { return __cont.remove_if(__pred); }
76 
77  template<typename _Tp, typename _Alloc, typename _Up>
78  inline typename forward_list<_Tp, _Alloc>::size_type
79  erase(forward_list<_Tp, _Alloc>& __cont, const _Up& __value)
80  {
81  using __elem_type = typename forward_list<_Tp, _Alloc>::value_type;
82  return std::erase_if(__cont, [&](__elem_type& __elem) {
83  return __elem == __value;
84  });
85  }
86 _GLIBCXX_END_NAMESPACE_VERSION
87 } // namespace std
88 #endif // __cpp_lib_erase_if
89 
90 #endif // C++11
91 
92 #endif // _GLIBCXX_FORWARD_LIST