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

NAME
     iswalnum, iswalpha, iswcntrl, iswctype, iswdigit, iswgraph, iswlower,
     iswprint, iswpunct, iswspace, iswupper, iswxdigit, towlower, towupper,
     wctype, wcwidth - wide-character classification macros

SYNOPSIS
     #include <wchar.h>

     int
     iswalnum(wint_t wc);

     int
     iswalpha(wint_t wc);

     int
     iswcntrl(wint_t wc);

     int
     iswctype(wint_t wc, wctype_t charclass);

     int
     iswdigit(wint_t wc);

     int
     iswgraph(wint_t wc);

     int
     iswlower(wint_t wc);

     int
     iswprint(wint_t wc);

     int
     iswpunct(wint_t wc);

     int
     iswspace(wint_t wc);

     int
     iswupper(wint_t wc);

     int
     iswxdigit(wint_t wc);

     wint_t
     towlower(wint_t wc);

     wint_t
     towupper(wint_t wc);

     wctype_t
     wctype(char *charclass);

     int
     wcwidth(wint_t wc);

DESCRIPTION
     The wctype routine returns an numeric value representing the character
     class charclass. A value of 0 is returned for unknown classes.  The pos-
     sible classes are:

	   "alpha", "blank", "cntrl", "digit", "graph", "ideogram", "lower",
	   "phonogram", "print", "punct", "space", "special", "upper",
	   "xdigit"

     The iswctype routine tests wc to see if it is in the character class
     charclass (as returned by wctype). It returns a non 0 value if wc is in
     the character class, 0 if not.

     The wcwidth routine is identical to the scrwidth(3) routine.

     The rest of these routines are identical to the standard ctype(3) rou-
     tines of the same name with the first `w' removed (e.g., iswalnum is
     identical to isalnum). The standard ctype(3) routines provided in the C
     library are already capable of dealing with wide characters.

SEE ALSO
     ctype(3)

BSDI BSD/OS		       December 8, 1997				     2
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