NAME
wctype - wide-character classification
SYNOPSIS
#include <wctype.h>
I wctype_t wctype(const char * name );
DESCRIPTION
The
wctype_t type represents a property which a wide character may or
may not have.
In other words, it represents a class of wide characters.
This type's nature is implementation dependent, but the special value
(wctype_t) 0 denotes an invalid property.
Nonzero
wctype_t values
can be passed to the
iswctype(3)
function
to actually test whether a given
wide character has the property.
The
R wctype ()
function returns a property, given by its name.
The set of
valid names depends on the
LC_CTYPE
category of the current locale, but the
following names are valid in all locales.
"alnum" - realizes the isalnum(3) classification function
"alpha" - realizes the isalpha(3) classification function
"blank" - realizes the isblank(3) classification function
"cntrl" - realizes the iscntrl(3) classification function
"digit" - realizes the isdigit(3) classification function
"graph" - realizes the isgraph(3) classification function
"lower" - realizes the islower(3) classification function
"print" - realizes the isprint(3) classification function
"punct" - realizes the ispunct(3) classification function
"space" - realizes the isspace(3) classification function
"upper" - realizes the isupper(3) classification function
"xdigit" - realizes the isxdigit(3) classification function
RETURN VALUE
The
R wctype ()
function returns a property descriptor
if the name is valid.
Otherwise it returns (wctype_t) 0.
CONFORMING TO
C99.
NOTES
The behavior of
R wctype ()
depends on the
LC_CTYPE
category of the
current locale.
SEE ALSO
