private static void CurrencyCheck(Money left, Money right)
{
if (left.Currency != right.Currency)
{
throw new ArithmeticException(
"Unable to perform arithmetic operations on Money values of different Currency.");
}
}
public bool Equals(Money other)
{
if (ReferenceEquals(null, other)) return false;
if (ReferenceEquals(this, other)) return true;
return other.Amount == Amount && Equals(other.Currency, Currency);
}