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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.  Non-zero 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.  Other-
       wise 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 3.22 of the Linux man-pages project.  A description of
       the  project, and information about reporting bugs, can be found at http://www.ker-
       nel.org/doc/man-pages/.



GNU                               1999-07-25                         WCTYPE(3)

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