Mega Code Archive
Overload operator plus (=)
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#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
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