将u8字面量用作const char*的另一种方式是使用用户定义的字面量(参见https://en.cppreference.com/w/cpp/language/user_literal): std::string operator"" S(const char8_t* str, std::size_t) { return reinterpret_cast< const char* >(str); } char const* operator"" C(const char8_t* str,...
首先，我建议不要使用std::u8string，因为它在标准中的支持很差，而且根本不受任何系统API的支持在大多...
generic_stringgeneric_wstringgeneric_u8stringgeneric_u16stringgeneric_u32string returns the path in generic pathname format converted to a string (public member function) 代码语言:txt 复制 © cppreference.com 在CreativeCommonsAttribution下授权-ShareAlike未移植许可v3.0。
std::u8stringgeneric_u8string()const; (since C++20) Returns the internal pathname in generic pathname format, converted to specific string type. Conversion, if any, is specified as follows: Ifpath::value_typeischar, conversion, if any, is system-dependent. This is the case on typical POSIX...
std::literals::string_view_literals::operator""sv 在标头<string_view>定义 constexprstd::string_view operator""sv(constchar*str,std::size_tlen)noexcept; (1)(C++17 起) constexprstd::u8string_view operator""sv(constchar8_t*str,std::size_tlen)noexcept; ...
std::stringstd::basic_string<char> std::wstringstd::basic_string<wchar_t> std::u8string(C++20)std::basic_string<char8_t> std::u16string(C++11)std::basic_string<char16_t> std::u32string(C++11)std::basic_string<char32_t>
std::hash<std::basic_string> (C++11) 字符串的散列支持 (类模板特化) std::hash<std::string_view>std::hash<std::wstring_view>std::hash<std::u8string_view>std::hash<std::u16string_view>std::hash<std::u32string_view> (C++17)(C++17)(C++20)(C++17)(C++17) 字符串视图的散列支持...
std::pmr::string (C++17) std::pmr::basic_string<char> std::pmr::wstring (C++17) std::pmr::basic_string<wchar_t> std::pmr::u8string (C++20) std::pmr::basic_string<char8_t> std::pmr::u16string (C++17) std::pmr::basic_string<char16_t> std::pmr::u32string (C++17)...
stringwstringu8stringu16stringu32string returns the path in native pathname format converted to a string (public member function) 代码语言:txt 复制 © cppreference.com 在CreativeCommonsAttribution下授权-ShareAlike未移植许可v3.0。 http://en.cppreference.com/w/cpp/filesystem/path/generic[医]弦 ...
(2)强引用胖指针:string (3)弱引用胖指针:string_view (4)强弱引用的安全守则 (5)常见容器及其相应的弱引用 (7)string_view 的重要用途:高效地切片 (8)remove_prefix、remove_suffix (9)string_view 也可以被放进容器 (10)很多 string 的成员函数也支持 string_view (11)SFINAE (12)string_view 和 strin...