#include <iostream>
using namespace std;
class SimpleCat {
public:
SimpleCat();
SimpleCat(SimpleCat&);
~SimpleCat();
int GetAge() const {
return itsAge;
}
void SetAge(int age) {
itsAge = age;
}
private:
int itsAge;
};
SimpleCat::SimpleCat() {
cout << "Simple Cat Constructor..." << endl;
itsAge = 1;
}
SimpleCat::SimpleCat(SimpleCat&) {
cout << "Simple Cat Copy Constructor..." << endl;
}
SimpleCat::~SimpleCat() {
cout << "Simple Cat Destructor..." << endl;
}
const SimpleCat & FunctionTwo(const SimpleCat & theCat);
int main() {
cout << "Making a cat..." << endl;
SimpleCat Frisky;
cout << "Frisky is " << Frisky.GetAge() << " years old" << endl;
int age = 5;
Frisky.SetAge(age);
cout << "Frisky is " << Frisky.GetAge() << " years old" << endl;
cout << "Calling FunctionTwo..." << endl;
FunctionTwo(Frisky);
cout << "Frisky is " << Frisky.GetAge() << " years old" << endl;
return 0;
}
// functionTwo, passes a ref to a const object
const SimpleCat & FunctionTwo(const SimpleCat & theCat) {
cout << "Function Two. Returning..." << endl;
cout << "Frisky is now " << theCat.GetAge();
cout << " years old " << endl;
// theCat.SetAge(8); const!
return theCat;
}