>
#if     defined(_X_64_)
#define int_size        (double)(sizeof(__int64) * 8)
#else
#define int_size        (double)(sizeof(int) * 8)
#endif

BOOL is_moumou_right(void)
{
  return (pow(2.0, int_size) == 0.0);

(non mais oui, ok )