wctype(3) Library Functions Manual wctype(3) wctype - (libc -lc) #include wctype_t wctype(const char *name); wctype_t . . (wctype_t) 0 . wctype_t iswctype(3) . wctype() . LC_CTYPE . "alnum" - isalnum(3) "alpha" - isalpha(3) "blank" - isblank(3) "cntrl" - iscntrl(3) "digit" - isdigit(3) "graph" - isgraph(3) "lower" - islower(3) "print" - isprint(3) "punct" - ispunct(3) "space" - isspace(3) "upper" - isupper(3) "xdigit" - isxdigit(3) wctype() name . (wctype_t) 0. attributes(7). +----------------------+------------------------------------+---------------------------------------------------------------------------------------------+ | | | | +----------------------+------------------------------------+---------------------------------------------------------------------------------------------+ |wctype() | | (locale) (MT-Safe) | +----------------------+------------------------------------+---------------------------------------------------------------------------------------------+ C11, POSIX.1-2008. POSIX.1-2001 C99. wctype() LC_CTYPE . iswctype(3) 3 . . : . 6.18 8 2026 wctype(3)