iswctype(3C)						   Standard C Library Functions 					      iswctype(3C)

NAME

       iswctype - test character for specified class

SYNOPSIS

       #include <wchar.h>

       int iswctype(wint_t wc, wctype_t charclass);

DESCRIPTION

       The iswctype() function determines whether the wide-character code wc has the character class charclass, returning TRUE or FALSE. The iswc-
       type() function is defined on WEOF and wide-character codes corresponding to the valid character encodings in the current locale. If the wc
       argument  is  not  in the domain of the function, the result is undefined. If the value of charclass is invalid (that is, not obtained by a
       call to wctype(3C) or charclass	is invalidated by a subsequent call to setlocale(3C) that has affected category LC_CTYPE), the	result	is
       indeterminate.

RETURN VALUES

       The iswctype() function returns 0 for FALSE and non-zero for TRUE.

USAGE

       There are twelve strings that are reserved for the standard character classes:

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

       In the table below, the functions in the left column are equivalent to the functions in the right column.

       iswalnum(wc)		     iswctype(wc, wctype("alnum"))
       iswalpha(wc)		     iswctype(wc, wctype("alpha"))
       iswcntrl(wc)		     iswctype(wc, wctype("cntrl"))
       iswdigit( wc)		     iswctype(wc, wctype("digit"))
       iswgraph(wc)		     iswctype(wc, wctype("graph"))
       iswlower(wc)		     iswctype(wc, wctype("lower"))
       iswprint(wc)		     iswctype(wc, wctype("print"))
       iswpunct(wc)		     iswctype( wc, wctype("punct"))
       iswspace(wc)		     iswctype(wc, wctype("space"))
       iswupper(wc)		     iswctype(wc, wctype("upper"))
       iswxdigit(wc)		     iswctype(wc, wctype("xdigit"))

       The call

	      iswctype(wc, wctype("blank"))

       does not have an equivalent  isw*() function.

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

       iswalpha(3C), setlocale(3C), wctype(3C), attributes(5), environ(5), standards(5)

SunOS 5.10							    24 Jul 2002 						      iswctype(3C)