| // Components for manipulating sequences of characters -*- C++ -*- |
| |
| // Copyright (C) 1997-2020 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 3, or (at your option) |
| // any later version. |
| |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| |
| // Under Section 7 of GPL version 3, you are granted additional |
| // permissions described in the GCC Runtime Library Exception, version |
| // 3.1, as published by the Free Software Foundation. |
| |
| // You should have received a copy of the GNU General Public License and |
| // a copy of the GCC Runtime Library Exception along with this program; |
| // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| // <http://www.gnu.org/licenses/>. |
| |
| /** @file include/string |
| * This is a Standard C++ Library header. |
| */ |
| |
| // |
| // ISO C++ 14882: 21 Strings library |
| // |
| |
| #ifndef _GLIBCXX_STRING |
| #define _GLIBCXX_STRING 1 |
| |
| #pragma GCC system_header |
| |
| #include <bits/c++config.h> |
| #include <bits/stringfwd.h> |
| #include <bits/char_traits.h> // NB: In turn includes stl_algobase.h |
| #include <bits/allocator.h> |
| #include <bits/cpp_type_traits.h> |
| #include <bits/localefwd.h> // For operators >>, <<, and getline. |
| #include <bits/ostream_insert.h> |
| #include <bits/stl_iterator_base_types.h> |
| #include <bits/stl_iterator_base_funcs.h> |
| #include <bits/stl_iterator.h> |
| #include <bits/stl_function.h> // For less |
| #include <ext/numeric_traits.h> |
| #include <bits/stl_algobase.h> |
| #if __cplusplus > 201703L |
| # include <bits/stl_algo.h> // For remove and remove_if |
| #endif // C++20 |
| #include <bits/range_access.h> |
| #include <bits/basic_string.h> |
| #include <bits/basic_string.tcc> |
| |
| #if __cplusplus >= 201703L && _GLIBCXX_USE_CXX11_ABI |
| namespace std _GLIBCXX_VISIBILITY(default) |
| { |
| _GLIBCXX_BEGIN_NAMESPACE_VERSION |
| namespace pmr { |
| template<typename _Tp> class polymorphic_allocator; |
| template<typename _CharT, typename _Traits = char_traits<_CharT>> |
| using basic_string = std::basic_string<_CharT, _Traits, |
| polymorphic_allocator<_CharT>>; |
| using string = basic_string<char>; |
| #ifdef _GLIBCXX_USE_CHAR8_T |
| using u8string = basic_string<char8_t>; |
| #endif |
| using u16string = basic_string<char16_t>; |
| using u32string = basic_string<char32_t>; |
| #ifdef _GLIBCXX_USE_WCHAR_T |
| using wstring = basic_string<wchar_t>; |
| #endif |
| } // namespace pmr |
| |
| template<typename _Str> |
| struct __hash_string_base |
| : public __hash_base<size_t, _Str> |
| { |
| size_t |
| operator()(const _Str& __s) const noexcept |
| { return hash<basic_string_view<typename _Str::value_type>>{}(__s); } |
| }; |
| |
| template<> |
| struct hash<pmr::string> |
| : public __hash_string_base<pmr::string> |
| { }; |
| #ifdef _GLIBCXX_USE_CHAR8_T |
| template<> |
| struct hash<pmr::u8string> |
| : public __hash_string_base<pmr::u8string> |
| { }; |
| #endif |
| template<> |
| struct hash<pmr::u16string> |
| : public __hash_string_base<pmr::u16string> |
| { }; |
| template<> |
| struct hash<pmr::u32string> |
| : public __hash_string_base<pmr::u32string> |
| { }; |
| #ifdef _GLIBCXX_USE_WCHAR_T |
| template<> |
| struct hash<pmr::wstring> |
| : public __hash_string_base<pmr::wstring> |
| { }; |
| #endif |
| |
| _GLIBCXX_END_NAMESPACE_VERSION |
| } // namespace std |
| #endif // C++17 |
| |
| #if __cplusplus > 201703L |
| namespace std _GLIBCXX_VISIBILITY(default) |
| { |
| _GLIBCXX_BEGIN_NAMESPACE_VERSION |
| |
| #define __cpp_lib_erase_if 202002L |
| |
| template<typename _CharT, typename _Traits, typename _Alloc, |
| typename _Predicate> |
| inline typename basic_string<_CharT, _Traits, _Alloc>::size_type |
| erase_if(basic_string<_CharT, _Traits, _Alloc>& __cont, _Predicate __pred) |
| { |
| const auto __osz = __cont.size(); |
| __cont.erase(std::remove_if(__cont.begin(), __cont.end(), __pred), |
| __cont.end()); |
| return __osz - __cont.size(); |
| } |
| |
| template<typename _CharT, typename _Traits, typename _Alloc, typename _Up> |
| inline typename basic_string<_CharT, _Traits, _Alloc>::size_type |
| erase(basic_string<_CharT, _Traits, _Alloc>& __cont, const _Up& __value) |
| { |
| const auto __osz = __cont.size(); |
| __cont.erase(std::remove(__cont.begin(), __cont.end(), __value), |
| __cont.end()); |
| return __osz - __cont.size(); |
| } |
| _GLIBCXX_END_NAMESPACE_VERSION |
| } // namespace std |
| #endif // C++20 |
| |
| #endif /* _GLIBCXX_STRING */ |