fusl/src/ctype/iswxdigit.c

#include <wctype.h>
#include "libc.h"

int iswxdigit(wint_t wc) {
  return (unsigned)(wc - '0') < 10 || (unsigned)((wc | 32) - 'a') < 6;
}

int __iswxdigit_l(wint_t c, locale_t l) {
  return iswxdigit(c);
}

weak_alias(__iswxdigit_l, iswxdigit_l);