iswctype, iswctype_l—extensible wide-character testSynopsis
#include <wctype.h> int iswctype(wint_t c, wctype_t desc); #include <wctype.h> int iswctype_l(wint_t c, wctype_t desc, locale_t locale);
Description
iswctype is a function which classifies wide-character values using the
wide-character test specified by desc.
iswctype_l is like iswctype but performs the check based on the
locale specified by the locale object locale. If locale is
LC_GLOBAL_LOCALE or not a valid locale object, the behaviour is undefined.
Returns
iswctype, iswctype_l return non-zero if and only if c matches
the test specified by desc. If desc is unknown, zero is returned.
Portability
iswctype is C99.
iswctype_l is POSIX-1.2008.
No supporting OS subroutines are required.