istream operator

[JRimmer]

Main function code:

Rational B;

cout << "Enter the value for Rational B: ";
cin >> B; //This is where I'm having trouble
cout << "The value of B is: " << B;

User Inputs: "50/1";
Desired Output: "The value of B is: 50;
Actual Output: "The Value of B is : 0; (0 is assigned to B from default constructor)

std::istream &operator>>(std::istream &in, Rational a){
	in >> a.equation;
	
	std::stringstream ss;
	ss << a.equation;
	ss >> a.numerator;
	ss.ignore();
	ss >> a.denominator;

	return in;
}

I've already written and understand the ostream operator for my class, but I haven't written my istream. What I have written of my istream isn't correct, I know that much, but I don't know why. Any advice would be appreciated!

[naraku9333]

Have the operator take Rational by reference.

[JRimmer]

Thanks!

fixed code:

std::istream &operator>>(std::istream &in, Rational &a){
	in >> a.equation;
	
	std::stringstream ss;
	ss << a.equation;
	ss >> a.numerator;
	ss.ignore();
	ss >> a.denominator;

	return in;
}