17. Suppose that you have the following definition of a class. class dummyClass
{
public:
void print();
...
private:
int listLength;
int *list;
double salary;
string name;
}

a. Write the function prototype to overload the assignment operator for the class dummyClass.
b. Write the definition of the function to overload the assignment operator for the class dummyClass.
c. Write the function prototype to include the copy constructor for the class dummyClass.
d. Write the definition of the copy constructor for the class dummyClass.