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 characters.  This type's nature is  implementa-
       tion-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 3.53 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)