| 1 | // Components for manipulating sequences of characters -*- C++ -*- | 
 
 
 
 
 | 2 |  | 
 
 
 
 
 | 3 | // Copyright (C) 1997-2021 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 202002L | 
 
 
 
 
 | 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 */ |