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 implementation-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 3.25 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)