u16string
A type that describes a specialization of the template class basic_string with elements of type char16_t.
Other typedefs that specialize basic_string include wstring, string, and u32string.
typedef basic_string<char16_t, char_traits<char16_t>, allocator<char16_t>> u16string;
Remarks
For a list of string constructors, see basic_string::basic_string.
Requirements
Header: <string>
Namespace: std