Standard library header <cuchar>

This header was originally in the C standard library as <uchar.h>.

This header is part of the null-terminated multibyte strings library.

Macros
__STDC_UTF_16__	indicates that UTF-16 encoding is used by mbrtoc16 and c16rtomb (macro constant)
__STDC_UTF_32__	indicates that UTF-32 encoding is used by mbrtoc32 and c32rtomb (macro constant)
Functions
mbrtoc16 (C++11)	generate the next 16-bit wide character from a narrow multibyte string (function)
c16rtomb (C++11)	convert a 16-bit wide character to narrow multibyte string (function)
mbrtoc32 (C++11)	generate the next 32-bit wide character from a narrow multibyte string (function)
c32rtomb (C++11)	convert a 32-bit wide character to narrow multibyte string (function)