Refactoring of class.c

class.c

/* vrati offset (u_int16_t), alebo -1 ak chyba */
/*
   cinfo v constablovi uchovava pointer
   cinfo_size uchovava pocet u_int32_t-bitovych slov od cinfo_offset
*/
int _class_alloc_cinfo(u_int16_t cinfo_size, uintptr_t *cinfo_mask, u_int16_t cinfo_offset)
{
  int i;

  for(i=0; i < cinfo_size && i < sizeof(cinfo_mask) * 8; i++) {
    if (!(cinfo_mask & 1 << i)) {
      *cinfo_mask |= 1 << i;
      return cinfo_offset + i * sizeof(uintptr_t);
    }
  }
  return -1;
}

int class_alloc_object_cinfo(struct class_s *c)
{
  return _class_alloc_cinfo(c->cinfo_size, &c->cinfo_mask, c->cinfo_offset);
}

int class_alloc_subject_cinfo(struct class_s *c)
{
  return _class_alloc_cinfo(c->subject.cinfo_size, &c->subject.cinfo_mask, c->subject.cinfo_offset);
}