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// This program adds money of two different people
#include<iostream>
#include<cstdlib>
using namespace std;
class AltMoney
{
public:
AltMoney();
AltMoney(int d, int c);
void display_money();
friend AltMoney add(AltMoney m1, AltMoney m2);//changed add function to friend and added it up here in public
void read_money(int& d, int& c);
friend AltMoney subtract(AltMoney m1, AltMoney m2);//added a subtract function
private:
int dollars;
int cents;
};
int main()
{
int d, c;
AltMoney m1, m2, sum, sub;
sum = AltMoney(0, 0);
m1.read_money(d, c);
m1 = AltMoney(d, c);
cout << "The first money is:";
m1.display_money();
m2.read_money(d, c);
m2 = AltMoney(d, c);
cout << "The second money is:";
m2.display_money();
sum = add(m1, m2);//sum will now be equal to the add function and calls upon it as well
cout << "The sum is:";
sum.display_money();
sub = subtract(m1, m2);//sub will now be equal to the subtract function and calls upon it as well
cout << "The subtraction is:";
sub.display_money();
return 0;
}
AltMoney::AltMoney()
{
dollars = 0;
cents = 0;
}
AltMoney::AltMoney(int d, int c)
{
dollars = d;
cents = c;
}
void AltMoney::display_money()
{
cout << "$" << dollars << ".";
if (cents <= 9)
cout << "0"; //to display a 0 in the left for numbers less than 10
cout << cents << endl;
}
AltMoney add(AltMoney m1, AltMoney m2)
{
int extra = 0;
AltMoney sum;//local in this block only
sum.cents = m1.cents + m2.cents;
if (sum.cents >= 100) {
sum.cents = sum.cents - 100;
extra = 1;
}
sum.dollars = m1.dollars + m2.dollars + extra;
return sum;
}
AltMoney subtract(AltMoney m1, AltMoney m2)
{
int extra = 0;
AltMoney sub;//local in this block only
sub.cents = m1.cents + m2.cents;
if (sub.cents >= 100) {
sub.cents = sub.cents - 100;
extra = 1;
}
sub.dollars = m1.dollars - m2.dollars - extra;
return sub;
}
void AltMoney::read_money(int& d, int& c)
{
cout << "Enter dollar \n";
cin >> dollars;
cout << "Enter cents \n";
cin >> cents;
if (dollars < 0 || cents < 0)
{
cout << "Invalid dollars and cents, negative values\n";
exit(1);
}
}
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