Function mi_ctz

3rd/mimalloc-2.0.9/include/mimalloc-internal.h:955–962

#endif
}
static inline size_t mi_ctz(uintptr_t x) {
  if (x==0) return MI_INTPTR_BITS;
#if (INTPTR_MAX == LONG_MAX)
  return __builtin_ctzl(x);
#else
  return __builtin_ctzll(x);
#endif
}

#elif defined(_MSC_VER)