// "const" can protect the sum Money object from the unwanted change
const Money operator +(const Money& amount1, const Money& amount2){
int allCents1 = amount1.getCents() + amount1.getDollars() * 100;
int allCents2 = amount2.getCents() + amount2.getDollars() * 100;
int summAllCents = allCents1 + allCents2;
int absAllCents = abs(summAllCents); // Money can be negative
int finalDollars = absAllCents / 100;
int finalCents = absAllCents % 100;
if (sumAllCents < 0){
finalDollars = -finalDollars;
finalCents = -finalCents;
}
// constructor is not a "void" function
// A constructor can return an object
// Called an "anonymous object"
return Money(finalDollars, finalCents);
}
bool operator ==(const Money& amount1, const Money& amount2){
return ((amount1.getDollars() == amount2.getDollars())
&& (amount1.getCents() == amount2.getCents()));
}
