21 Strings library [strings]

21.3 String classes [string.classes]

21.3.5 Suffix for basic_string literals [basic.string.literals]

string operator "" s(const char* str, size_t len);

1

Returns: string{str, len}.

u16string operator "" s(const char16_t* str, size_t len);

2

Returns: u16string{str, len}.

u32string operator "" s(const char32_t* str, size_t len);

3

Returns: u32string{str, len}.

wstring operator "" s(const wchar_t* str, size_t len);

4

Returns: wstring{str, len}.

5

[ Note: The same suffix s is used for chrono::duration literals denoting seconds but there is no conflict, since duration suffixes apply to numbers and string literal suffixes apply to character array literals.  — end note ]