[string.view.synop] (original) (raw)

27 Strings library [strings]

27.3 String view classes [string.view]

27.3.2 Header <string_view> synopsis [string.view.synop]

// mostly freestanding #include <compare> // see [compare.syn] namespace std { // [string.view.template], class template basic_string_view template<class charT, class traits = char_traits<charT>> class basic_string_view; // partially freestanding template<class charT, class traits> constexpr bool ranges::enable_view<basic_string_view<charT, traits>> = true;template<class charT, class traits> constexpr bool ranges::enable_borrowed_range<basic_string_view<charT, traits>> = true;// [string.view.comparison], non-member comparison functions template<class charT, class traits> constexpr bool operator==(basic_string_view<charT, traits> x, type_identity_t<basic_string_view<charT, traits>> y) noexcept;template<class charT, class traits> constexpr see below operator<=>(basic_string_view<charT, traits> x, type_identity_t<basic_string_view<charT, traits>> y) noexcept;// [string.view.io], inserters and extractors template<class charT, class traits> basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, basic_string_view<charT, traits> str); // hosted // basic_string_view typedef-names using string_view = basic_string_view<char>;using u8string_view = basic_string_view<char8_t>;using u16string_view = basic_string_view<char16_t>;using u32string_view = basic_string_view<char32_t>;using wstring_view = basic_string_view<wchar_t>;// [string.view.hash], hash support template<class T> struct hash;template<> struct hash<string_view>;template<> struct hash<u8string_view>;template<> struct hash<u16string_view>;template<> struct hash<u32string_view>;template<> struct hash<wstring_view>;inline namespace literals { inline namespace string_view_literals { // [string.view.literals], suffix for basic_string_view literals constexpr string_view operator""sv(const char* str, size_t len) noexcept;constexpr u8string_view operator""sv(const char8_t* str, size_t len) noexcept;constexpr u16string_view operator""sv(const char16_t* str, size_t len) noexcept;constexpr u32string_view operator""sv(const char32_t* str, size_t len) noexcept;constexpr wstring_view operator""sv(const wchar_t* str, size_t len) noexcept;} } }