iswxdigit, iswxdigit_l—hexadecimal digit wide character testSynopsis
#include <wctype.h> int iswxdigit(wint_t c); #include <wctype.h> int iswxdigit_l(wint_t c, locale_t locale);
Description
iswxdigit is a function which classifies wide character values that
are hexadecimal digits.
iswxdigit_l is like iswxdigit 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
iswxdigit, iswxdigit_l return non-zero if c is a hexadecimal digit wide character.
Portability
iswxdigit is C99.
iswxdigit_l is POSIX-1.2008.
No supporting OS subroutines are required.