| 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 */ |