wctype
—get wide-character classification type#include <wctype.h> wctype_t wctype(const char *c);
Description
wctype
is a function which takes a string c and gives back
the appropriate wctype_t type value associated with the string,
if one exists. The following values are guaranteed to be recognized:
"alnum", "alpha", "blank", "cntrl", "digit", "graph", "lower", "print",
"punct", "space", "upper", and "xdigit".
Returns
wctype
returns 0 and sets errno
to EINVAL
if the
given name is invalid. Otherwise, it returns a valid non-zero wctype_t
value.
Portability
wctype
is C99.
No supporting OS subroutines are required.