linux man page for wctype

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
       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.

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 3.27 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
								    1999-07-25								 WCTYPE(3)