...h (3), setlocale (3), strcoll (3), strfmon (3), strftime (3), strxfrm (3), uselocale (3), wcstombs (3), locale (5), charsets (7), unicode (7), utf-8 (7)...etenv() wcrtomb() if its final argument is NULL wcsrtombs() if its final argument is NULL wcstombs() wctomb() Async-cancel-safe functions An async-cancel-safe function is one th…