libstdc++
experimental/string
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1 // <experimental/string> -*- C++ -*-
2 
3 // Copyright (C) 2015-2025 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 experimental/string
26  * This is a TS C++ Library header.
27  * @ingroup libfund-ts
28  */
29 
30 #ifndef _GLIBCXX_EXPERIMENTAL_STRING
31 #define _GLIBCXX_EXPERIMENTAL_STRING 1
32 
33 #ifdef _GLIBCXX_SYSHDR
34 #pragma GCC system_header
35 #endif
36 
37 #include <bits/requires_hosted.h> // experimental is currently omitted
38 
39 #if __cplusplus >= 201402L
40 
41 #include <string>
42 #include <algorithm>
43 #include <experimental/memory_resource>
44 
45 namespace std _GLIBCXX_VISIBILITY(default)
46 {
47 _GLIBCXX_BEGIN_NAMESPACE_VERSION
48 
49 namespace experimental
50 {
51 inline namespace fundamentals_v2
52 {
53  template<typename _CharT, typename _Traits, typename _Alloc,
54  typename _Predicate>
55  inline void
56  erase_if(basic_string<_CharT, _Traits, _Alloc>& __cont, _Predicate __pred)
57  {
58  __cont.erase(std::remove_if(__cont.begin(), __cont.end(), __pred),
59  __cont.end());
60  }
61 
62  template<typename _CharT, typename _Traits, typename _Alloc, typename _Up>
63  inline void
64  erase(basic_string<_CharT, _Traits, _Alloc>& __cont, const _Up& __value)
65  {
66  __cont.erase(std::remove(__cont.begin(), __cont.end(), __value),
67  __cont.end());
68  }
69 
70 #if _GLIBCXX_USE_CXX11_ABI
71  namespace pmr
72  {
73  // basic_string using polymorphic allocator in namespace pmr
74  template<typename _CharT, typename _Traits = char_traits<_CharT>>
75  using basic_string =
76  std::basic_string<_CharT, _Traits, polymorphic_allocator<_CharT>>;
77 
78  // basic_string typedef names using polymorphic allocator in namespace
79  // std::experimental::pmr
80  typedef basic_string<char> string;
81 #ifdef _GLIBCXX_USE_CHAR8_T
82  typedef basic_string<char8_t> u8string;
83 #endif
84  typedef basic_string<char16_t> u16string;
85  typedef basic_string<char32_t> u32string;
86  typedef basic_string<wchar_t> wstring;
87 
88  } // namespace pmr
89 #endif
90 } // namespace fundamentals_v2
91 } // namespace experimental
92 
93 _GLIBCXX_END_NAMESPACE_VERSION
94 } // namespace std
95 
96 #endif // C++14
97 
98 #endif // _GLIBCXX_EXPERIMENTAL_STRING