/**
* Compares this Money to the given Money.
*
* @param Money $that
*
* @return int [-1, 0, 1] if `$this` is less than, equal to, or greater than `$that`.
*
* @throws CurrencyMismatchException If the given Money is in a different currency.
*/
public function compareTo(Money $that)
{
$this->checkMoney($that);
return $this->amount->compareTo($that->amount);
}
