Overload operator plus (=) : overload assignment operator « Operator Overloading « C++ Tutorial

1. C++ Tutorial
2. Operator Overloading
3. overload assignment operator

#include <iostream>
 
 class MyType
 {
 public:
     MyType(); 
     int GetAge() const { return *itsAge; }
     int GetWeight() const { return *itsWeight; }
     void SetAge(int age) { *itsAge = age; }
     MyType operator=(const MyType &);
 
 private:
     int *itsAge;
     int *itsWeight;
 };
 
 MyType::MyType()
 {
     itsAge = new int;
     itsWeight = new int;
     *itsAge = 5;
     *itsWeight = 9;
 }
 
 
 MyType MyType::operator=(const MyType & rhs)
 {
     if (this == &rhs)
         return *this;
     delete itsAge;
     delete itsWeight;
     itsAge = new int;
     itsWeight = new int;
     *itsAge = rhs.GetAge();
     *itsWeight = rhs.GetWeight();
     return *this;
 }
 
 
 int main()
 {
     MyType myObject;
     std::cout << "myObject's age: " << myObject.GetAge() << std::endl;
     std::cout << "Setting myObject to 6...\n";
     myObject.SetAge(6);
     MyType whiskers;
     std::cout << "whiskers' age: " << whiskers.GetAge() << std::endl;
     std::cout << "copying myObject to whiskers...\n";
     whiskers = myObject;
     std::cout << "whiskers' age: " << whiskers.GetAge() << std::endl;
     return 0;
 }

myObject's age: 5
Setting myObject to 6...
whiskers' age: 5
copying myObject to whiskers...
whiskers' age: 6