WCTYPE(3) BSD Library Functions Manual WCTYPE(3)

NAME
     iisswwccttyyppee, wwccttyyppee, iisswwccttyyppeell, wwccttyyppeell - wide character class functions

LLIIBBRRAARRYY
     Standard C Library (libc, -lc)

SYNOPSIS
     ##iinncclluuddee <>

     int
     iisswwccttyyppee(wintt wc, wctypet charclass);

     wctypet
     wwccttyyppee(const char *property);

     ##iinncclluuddee <>

     int
     iisswwccttyyppeell(wintt wc, wctypet charclass, localet loc);

     wctypet
     wwccttyyppeell(const char *property, localet loc);

DESCRIPTION
     The wwccttyyppee() function returns a value of type wctypet which represents
     the requested wide character class and may be used as the second argument
     for calls to iisswwccttyyppee().

     The following character class names are recognised:

           alnum   cntrl   ideogram   print   space   xdigit
           alpha   digit   lower      punct   special
           blank   graph   phonogram  rune    upper

     The iisswwccttyyppee() function checks whether the wide character wc is in the
     character class charclass.

     While the iisswwccttyyppee() and wwccttyyppee() functions use the current locale, the
     iisswwccttyyppeell() and wwccttyyppeell() functions may be passed locales directly. See
     xlocale(3) for more information.

RETURN VALUES
     The iisswwccttyyppee() function returns non-zero if and only if wc has the prop-
     erty described by charclass, or charclass is zero.

     The wwccttyyppee() function returns 0 if property is invalid, otherwise it
     returns a value of type wctypet that can be used in subsequent calls to
     iisswwccttyyppee().

EEXXAAMMPPLLEESS
     Reimplement iswalpha(3) in terms of iisswwccttyyppee() and wwccttyyppee():

           int
           myiswalpha(wintt wc)
           {
                   return (iswctype(wc, wctype("alpha")));
           }

SEE ALSO
     ctype(3), xlocale(3)

STANDARDS
     The iisswwccttyyppee() and wwccttyyppee() functions conform to IEEE Std 1003.1-2001
     (``POSIX.1'').  The ``ideogram'', ``phonogram'' ``special'', and ``rune''
     character classes are extensions.

HISTORY     The iisswwccttyyppee() and wwccttyyppee() functions first appeared in FreeBSD 5.0.

BSD                             March 27, 2004                             BSD