wctype

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 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 classification function
         "alpha" - realizes the isalpha classification function
         "blank" - realizes the isblank classification function
         "cntrl" - realizes the iscntrl classification function
         "digit" - realizes the isdigit classification function
         "graph" - realizes the isgraph classification function
         "lower" - realizes the islower classification function
         "print" - realizes the isprint classification function
         "punct" - realizes the ispunct classification function
         "space" - realizes the isspace classification function
         "upper" - realizes the isupper classification function
         "xdigit" - realizes the isxdigit classification function

RETURN VALUE
       The wctype function returns a property descriptor if the name is valid.
       Otherwise it returns (wctype_t)0.

CONFORMING TO
       ISO/ANSI C, UNIX98

SEE ALSO
       iswctype(3)

NOTES
       The behaviour of wctype depends on the LC_CTYPE category of the current
       locale.



GNU                               1999-07-25                         WCTYPE(3)