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3.28 iswctype—extensible wide-character test

Synopsis

#include <wctype.h>
int iswctype(wint_t c, wctype_t desc);

Description
iswctype is a function which classifies wide-character values using the wide-character test specified by desc.


Returns
iswctype returns non-zero if and only if c matches the test specified by desc. If desc is unknown, zero is returned.


Portability
iswctype is C99.

No supporting OS subroutines are required.