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 // Components for manipulating sequences of characters -*- C++ -*- | 
 
 
 
 
 
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  | 
 
 
 
 
 
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 // Copyright (C) 1997-2021 Free Software Foundation, Inc. | 
 
 
 
 
 
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 // | 
 
 
 
 
 
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 // This file is part of the GNU ISO C++ Library.  This library is free | 
 
 
 
 
 
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 // software; you can redistribute it and/or modify it under the | 
 
 
 
 
 
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 // terms of the GNU General Public License as published by the | 
 
 
 
 
 
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 // Free Software Foundation; either version 3, or (at your option) | 
 
 
 
 
 
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 // any later version. | 
 
 
 
 
 
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  | 
 
 
 
 
 
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 // This library is distributed in the hope that it will be useful, | 
 
 
 
 
 
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 // but WITHOUT ANY WARRANTY; without even the implied warranty of | 
 
 
 
 
 
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 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | 
 
 
 
 
 
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 // GNU General Public License for more details. | 
 
 
 
 
 
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  | 
 
 
 
 
 
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 // Under Section 7 of GPL version 3, you are granted additional | 
 
 
 
 
 
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 // permissions described in the GCC Runtime Library Exception, version | 
 
 
 
 
 
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 // 3.1, as published by the Free Software Foundation. | 
 
 
 
 
 
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  | 
 
 
 
 
 
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 // You should have received a copy of the GNU General Public License and | 
 
 
 
 
 
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 // a copy of the GCC Runtime Library Exception along with this program; | 
 
 
 
 
 
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 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see | 
 
 
 
 
 
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 // <http://www.gnu.org/licenses/>. | 
 
 
 
 
 
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  | 
 
 
 
 
 
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 /** @file include/string | 
 
 
 
 
 
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  *  This is a Standard C++ Library header. | 
 
 
 
 
 
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  */ | 
 
 
 
 
 
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  | 
 
 
 
 
 
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 // | 
 
 
 
 
 
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 // ISO C++ 14882: 21  Strings library | 
 
 
 
 
 
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 // | 
 
 
 
 
 
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  | 
 
 
 
 
 
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 #ifndef _GLIBCXX_STRING | 
 
 
 
 
 
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 #define _GLIBCXX_STRING 1 | 
 
 
 
 
 
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  | 
 
 
 
 
 
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 #pragma GCC system_header | 
 
 
 
 
 
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  | 
 
 
 
 
 
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 #include <bits/c++config.h> | 
 
 
 
 
 
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 #include <bits/stringfwd.h> | 
 
 
 
 
 
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 #include <bits/char_traits.h>  // NB: In turn includes stl_algobase.h | 
 
 
 
 
 
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 #include <bits/allocator.h> | 
 
 
 
 
 
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 #include <bits/cpp_type_traits.h> | 
 
 
 
 
 
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 #include <bits/localefwd.h>    // For operators >>, <<, and getline. | 
 
 
 
 
 
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 #include <bits/ostream_insert.h> | 
 
 
 
 
 
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 #include <bits/stl_iterator_base_types.h> | 
 
 
 
 
 
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 #include <bits/stl_iterator_base_funcs.h> | 
 
 
 
 
 
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 #include <bits/stl_iterator.h> | 
 
 
 
 
 
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 #include <bits/stl_function.h> // For less | 
 
 
 
 
 
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 #include <ext/numeric_traits.h> | 
 
 
 
 
 
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 #include <bits/stl_algobase.h> | 
 
 
 
 
 
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 #if __cplusplus > 201703L | 
 
 
 
 
 
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 #  include <bits/stl_algo.h> // For remove and remove_if | 
 
 
 
 
 
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 #endif // C++20 | 
 
 
 
 
 
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 #include <bits/range_access.h> | 
 
 
 
 
 
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 #include <bits/basic_string.h> | 
 
 
 
 
 
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 #include <bits/basic_string.tcc> | 
 
 
 
 
 
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  | 
 
 
 
 
 
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 #if __cplusplus >= 201703L && _GLIBCXX_USE_CXX11_ABI | 
 
 
 
 
 
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 namespace std _GLIBCXX_VISIBILITY(default) | 
 
 
 
 
 
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 { | 
 
 
 
 
 
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 _GLIBCXX_BEGIN_NAMESPACE_VERSION | 
 
 
 
 
 
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   namespace pmr { | 
 
 
 
 
 
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     template<typename _Tp> class polymorphic_allocator; | 
 
 
 
 
 
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     template<typename _CharT, typename _Traits = char_traits<_CharT>> | 
 
 
 
 
 
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       using basic_string = std::basic_string<_CharT, _Traits, | 
 
 
 
 
 
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                                              polymorphic_allocator<_CharT>>; | 
 
 
 
 
 
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     using string    = basic_string<char>; | 
 
 
 
 
 
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 #ifdef _GLIBCXX_USE_CHAR8_T | 
 
 
 
 
 
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     using u8string  = basic_string<char8_t>; | 
 
 
 
 
 
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 #endif | 
 
 
 
 
 
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     using u16string = basic_string<char16_t>; | 
 
 
 
 
 
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     using u32string = basic_string<char32_t>; | 
 
 
 
 
 
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 #ifdef _GLIBCXX_USE_WCHAR_T | 
 
 
 
 
 
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     using wstring   = basic_string<wchar_t>; | 
 
 
 
 
 
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 #endif | 
 
 
 
 
 
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   } // namespace pmr | 
 
 
 
 
 
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  | 
 
 
 
 
 
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   template<typename _Str> | 
 
 
 
 
 
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     struct __hash_string_base | 
 
 
 
 
 
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     : public __hash_base<size_t, _Str> | 
 
 
 
 
 
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     { | 
 
 
 
 
 
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       size_t | 
 
 
 
 
 
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       operator()(const _Str& __s) const noexcept | 
 
 
 
 
 
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       { return hash<basic_string_view<typename _Str::value_type>>{}(__s); } | 
 
 
 
 
 
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     }; | 
 
 
 
 
 
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  | 
 
 
 
 
 
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   template<> | 
 
 
 
 
 
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     struct hash<pmr::string> | 
 
 
 
 
 
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     : public __hash_string_base<pmr::string> | 
 
 
 
 
 
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     { }; | 
 
 
 
 
 
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 #ifdef _GLIBCXX_USE_CHAR8_T | 
 
 
 
 
 
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   template<> | 
 
 
 
 
 
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     struct hash<pmr::u8string> | 
 
 
 
 
 
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     : public __hash_string_base<pmr::u8string> | 
 
 
 
 
 
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     { }; | 
 
 
 
 
 
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 #endif | 
 
 
 
 
 
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   template<> | 
 
 
 
 
 
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     struct hash<pmr::u16string> | 
 
 
 
 
 
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     : public __hash_string_base<pmr::u16string> | 
 
 
 
 
 
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     { }; | 
 
 
 
 
 
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   template<> | 
 
 
 
 
 
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     struct hash<pmr::u32string> | 
 
 
 
 
 
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     : public __hash_string_base<pmr::u32string> | 
 
 
 
 
 
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     { }; | 
 
 
 
 
 
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 #ifdef _GLIBCXX_USE_WCHAR_T | 
 
 
 
 
 
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   template<> | 
 
 
 
 
 
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     struct hash<pmr::wstring> | 
 
 
 
 
 
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     : public __hash_string_base<pmr::wstring> | 
 
 
 
 
 
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     { }; | 
 
 
 
 
 
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 #endif | 
 
 
 
 
 
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  | 
 
 
 
 
 
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 _GLIBCXX_END_NAMESPACE_VERSION | 
 
 
 
 
 
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 } // namespace std | 
 
 
 
 
 
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 #endif // C++17 | 
 
 
 
 
 
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  | 
 
 
 
 
 
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 #if __cplusplus > 201703L | 
 
 
 
 
 
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 namespace std _GLIBCXX_VISIBILITY(default) | 
 
 
 
 
 
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 { | 
 
 
 
 
 
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 _GLIBCXX_BEGIN_NAMESPACE_VERSION | 
 
 
 
 
 
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  | 
 
 
 
 
 
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 #define __cpp_lib_erase_if 202002L | 
 
 
 
 
 
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  | 
 
 
 
 
 
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   template<typename _CharT, typename _Traits, typename _Alloc, | 
 
 
 
 
 
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            typename _Predicate> | 
 
 
 
 
 
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     inline typename basic_string<_CharT, _Traits, _Alloc>::size_type | 
 
 
 
 
 
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     erase_if(basic_string<_CharT, _Traits, _Alloc>& __cont, _Predicate __pred) | 
 
 
 
 
 
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     { | 
 
 
 
 
 
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       const auto __osz = __cont.size(); | 
 
 
 
 
 
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       __cont.erase(std::remove_if(__cont.begin(), __cont.end(), __pred), | 
 
 
 
 
 
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                    __cont.end()); | 
 
 
 
 
 
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       return __osz - __cont.size(); | 
 
 
 
 
 
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     } | 
 
 
 
 
 
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  | 
 
 
 
 
 
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   template<typename _CharT, typename _Traits, typename _Alloc, typename _Up> | 
 
 
 
 
 
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     inline typename basic_string<_CharT, _Traits, _Alloc>::size_type | 
 
 
 
 
 
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     erase(basic_string<_CharT, _Traits, _Alloc>& __cont, const _Up& __value) | 
 
 
 
 
 
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     { | 
 
 
 
 
 
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       const auto __osz = __cont.size(); | 
 
 
 
 
 
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       __cont.erase(std::remove(__cont.begin(), __cont.end(), __value), | 
 
 
 
 
 
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                    __cont.end()); | 
 
 
 
 
 
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       return __osz - __cont.size(); | 
 
 
 
 
 
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     } | 
 
 
 
 
 
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 _GLIBCXX_END_NAMESPACE_VERSION | 
 
 
 
 
 
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 } // namespace std | 
 
 
 
 
 
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 #endif // C++20 | 
 
 
 
 
 
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  | 
 
 
 
 
 
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 #endif /* _GLIBCXX_STRING */ |