1 | // Components for manipulating sequences of characters -*- C++ -*- |
2 | |
3 | // Copyright (C) 1997-2019 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/string |
26 | * This is a Standard C++ Library header. |
27 | */ |
28 | |
29 | // |
30 | // ISO C++ 14882: 21 Strings library |
31 | // |
32 | |
33 | #ifndef _GLIBCXX_STRING |
34 | #define _GLIBCXX_STRING 1 |
35 | |
36 | #pragma GCC system_header |
37 | |
38 | #include <bits/c++config.h> |
39 | #include <bits/stringfwd.h> |
40 | #include <bits/char_traits.h> // NB: In turn includes stl_algobase.h |
41 | #include <bits/allocator.h> |
42 | #include <bits/cpp_type_traits.h> |
43 | #include <bits/localefwd.h> // For operators >>, <<, and getline. |
44 | #include <bits/ostream_insert.h> |
45 | #include <bits/stl_iterator_base_types.h> |
46 | #include <bits/stl_iterator_base_funcs.h> |
47 | #include <bits/stl_iterator.h> |
48 | #include <bits/stl_function.h> // For less |
49 | #include <ext/numeric_traits.h> |
50 | #include <bits/stl_algobase.h> |
51 | #if __cplusplus > 201703L |
52 | # include <bits/stl_algo.h> // For remove and remove_if |
53 | #endif // C++20 |
54 | #include <bits/range_access.h> |
55 | #include <bits/basic_string.h> |
56 | #include <bits/basic_string.tcc> |
57 | |
58 | #if __cplusplus >= 201703L && _GLIBCXX_USE_CXX11_ABI |
59 | namespace std _GLIBCXX_VISIBILITY(default) |
60 | { |
61 | _GLIBCXX_BEGIN_NAMESPACE_VERSION |
62 | namespace pmr { |
63 | template<typename _Tp> class polymorphic_allocator; |
64 | template<typename _CharT, typename _Traits = char_traits<_CharT>> |
65 | using basic_string = std::basic_string<_CharT, _Traits, |
66 | polymorphic_allocator<_CharT>>; |
67 | using string = basic_string<char>; |
68 | #ifdef _GLIBCXX_USE_CHAR8_T |
69 | using u8string = basic_string<char8_t>; |
70 | #endif |
71 | using u16string = basic_string<char16_t>; |
72 | using u32string = basic_string<char32_t>; |
73 | #ifdef _GLIBCXX_USE_WCHAR_T |
74 | using wstring = basic_string<wchar_t>; |
75 | #endif |
76 | } // namespace pmr |
77 | |
78 | template<typename _Str> |
79 | struct __hash_string_base |
80 | : public __hash_base<size_t, _Str> |
81 | { |
82 | size_t |
83 | operator()(const _Str& __s) const noexcept |
84 | { return hash<basic_string_view<typename _Str::value_type>>{}(__s); } |
85 | }; |
86 | |
87 | template<> |
88 | struct hash<pmr::string> |
89 | : public __hash_string_base<pmr::string> |
90 | { }; |
91 | #ifdef _GLIBCXX_USE_CHAR8_T |
92 | template<> |
93 | struct hash<pmr::u8string> |
94 | : public __hash_string_base<pmr::u8string> |
95 | { }; |
96 | #endif |
97 | template<> |
98 | struct hash<pmr::u16string> |
99 | : public __hash_string_base<pmr::u16string> |
100 | { }; |
101 | template<> |
102 | struct hash<pmr::u32string> |
103 | : public __hash_string_base<pmr::u32string> |
104 | { }; |
105 | #ifdef _GLIBCXX_USE_WCHAR_T |
106 | template<> |
107 | struct hash<pmr::wstring> |
108 | : public __hash_string_base<pmr::wstring> |
109 | { }; |
110 | #endif |
111 | |
112 | _GLIBCXX_END_NAMESPACE_VERSION |
113 | } // namespace std |
114 | #endif // C++17 |
115 | |
116 | #if __cplusplus > 201703L |
117 | namespace std _GLIBCXX_VISIBILITY(default) |
118 | { |
119 | _GLIBCXX_BEGIN_NAMESPACE_VERSION |
120 | |
121 | #define __cpp_lib_erase_if 201900L |
122 | |
123 | template<typename _CharT, typename _Traits, typename _Alloc, |
124 | typename _Predicate> |
125 | inline typename basic_string<_CharT, _Traits, _Alloc>::size_type |
126 | erase_if(basic_string<_CharT, _Traits, _Alloc>& __cont, _Predicate __pred) |
127 | { |
128 | const auto __osz = __cont.size(); |
129 | __cont.erase(std::remove_if(__cont.begin(), __cont.end(), __pred), |
130 | __cont.end()); |
131 | return __osz - __cont.size(); |
132 | } |
133 | |
134 | template<typename _CharT, typename _Traits, typename _Alloc, typename _Up> |
135 | inline typename basic_string<_CharT, _Traits, _Alloc>::size_type |
136 | erase(basic_string<_CharT, _Traits, _Alloc>& __cont, const _Up& __value) |
137 | { |
138 | const auto __osz = __cont.size(); |
139 | __cont.erase(std::remove(__cont.begin(), __cont.end(), __value), |
140 | __cont.end()); |
141 | return __osz - __cont.size(); |
142 | } |
143 | _GLIBCXX_END_NAMESPACE_VERSION |
144 | } // namespace std |
145 | #endif // C++20 |
146 | |
147 | #endif /* _GLIBCXX_STRING */ |
148 | |