WCTYPE(3)		   Linux Programmer's Manual		     WCTYPE(3)



NAME
       wctype - wide-character classification

SYNOPSIS
       #include <wctype.h>

       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  charac-
       ters.   This type's nature is implementation-dependent, but the special
       value (wctype_t) 0 denotes an invalid property.	Nonzero wctype_t  val-
       ues  can be passed to the iswctype(3) function to actually test whether
       a given wide character has the property.

       The 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 wctype() function returns a property	 descriptor  if	 the  name  is
       valid.  Otherwise, it returns (wctype_t) 0.

ATTRIBUTES
       For   an	  explanation	of   the  terms	 used  in  this	 section,  see
       attributes(7).

       +----------+---------------+----------------+
       |Interface | Attribute	  | Value	   |
       +----------+---------------+----------------+
       |wctype()  | Thread safety | MT-Safe locale |
       +----------+---------------+----------------+
CONFORMING TO
       POSIX.1-2001, POSIX.1-2008, C99.

NOTES
       The behavior of wctype() depends on the LC_CTYPE category of  the  cur-
       rent locale.

SEE ALSO
       iswctype(3)

COLOPHON
       This  page  is  part of release 4.10 of the Linux man-pages project.  A
       description of the project, information about reporting bugs,  and  the
       latest	  version     of     this    page,    can    be	   found    at
       https://www.kernel.org/doc/man-pages/.



GNU				  2015-08-08			     WCTYPE(3)