src/multibyte/mbrtoc32.c

   1 #include <uchar.h>
   2 #include <wchar.h>
   3
   4 size_t mbrtoc32(char32_t *restrict pc32, const char *restrict s, size_t n, mbstate_t *restrict ps)
   5 {
   6         static unsigned internal_state;
   7         if (!ps) ps = (void *)&internal_state;
   8         if (!s) return mbrtoc32(0, "", 1, ps);
   9         wchar_t wc;
  10         size_t ret = mbrtowc(&wc, s, n, ps);
  11         if (ret <= 4 && pc32) *pc32 = wc;
  12         return ret;
  13 }