WCTYPE (3)
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
SEE ALSO
NOTES
The behaviour of wctype depends on the LC_CTYPE category of the
current locale.
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