opensolaris man page for wctype

wctype(3C)						   Standard C Library Functions 						wctype(3C)

NAME
       wctype - define character class

SYNOPSIS
       #include <wchar.h>

       wctype_t wctype(const char *charclass);

DESCRIPTION
       The  wctype() function is defined for valid character class names as defined in the current locale. The charclass is a string identifying a
       generic character class for which codeset-specific type information is required. The following character class names  are  defined  in  all
       locales:

       alnum		    alpha		  blank
       cntrl		    digit		  graph
       lower		    print		  punct
       space		    upper		  xdigit

       Additional character class names defined in the locale definition file (category LC_CTYPE) can also be specified.

       The  function  returns  a  value  of  type wctype_t, which can be used as the second argument to subsequent calls of iswctype(3C). wctype()
       determines values of wctype_t according to the rules of the coded character set defined by character  type  information	in  the  program's
       locale (category LC_CTYPE). The values returned by wctype() are valid until a call to setlocale(3C) that modifies the category LC_CTYPE.

RETURN VALUES
       The  wctype()  function	returns  0 if the given character class name is not valid for the current locale (category LC_CTYPE); otherwise it
       returns an object of type wctype_t that can be used in calls to iswctype().

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |ATTRIBUTE TYPE		     |ATTRIBUTE VALUE		   |
       +-----------------------------+-----------------------------+
       |CSI			     |Enabled			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe with exceptions	   |
       +-----------------------------+-----------------------------+

SEE ALSO
       iswctype(3C), setlocale(3C), attributes(5), standards(5)

SunOS 5.11							    14 Aug 2002 							wctype(3C)