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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 characters.  This type's nature is  implementa-
       tion-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  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
   Multithreading (see pthreads(7))
       The wctype() function is thread-safe with exceptions.  It can be  safely  used  in  multi-
       threaded applications, as long as setlocale(3) is not called to change the locale.

CONFORMING TO
       C99.

NOTES
       The behavior of wctype() depends on the LC_CTYPE category of the current locale.

SEE ALSO
       iswctype(3)

COLOPHON
       This  page  is  part of release 3.55 of the Linux man-pages project.  A description of the
       project,    and	  information	 about	  reporting    bugs,	can    be    found     at
       http://www.kernel.org/doc/man-pages/.

GNU					    2013-11-04					WCTYPE(3)
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