code: private boolean isLongMIN_VALUE()
      {
          if (decimalAt != count || count != MAX_LONG_DIGITS)
              return false;
  
              for (int i = 0; i < count; ++i)
          {
              if (digits[i] != LONG_MIN_REP[i]) return false;
          }
  
          return true;
      }
docs: Returns true if this DigitList represents Long.MIN_VALUE;
  false, otherwise.  This is required so that getLong() works.