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Manpages WCTYPESection: Linux Programmer's Manual (3 )Updated: 1999-07-25 Index Return to Main Contents NAMEwctype - wide character classificationSYNOPSIS#include <wctype.h> wctype_t wctype (const char *name); DESCRIPTIONThe 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 VALUEThe wctype function returns a property descriptor if the name is valid. Otherwise it returns (wctype_t)0.CONFORMING TOISO/ANSI C, UNIX98SEE ALSOiswctype(3)NOTESThe behaviour of wctype depends on the LC_CTYPE category of the current locale.
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