6.16 Class templates 195
void point<T>::move(T dx, T dy)
{
x=x+dx; y=y+dy;
}// overload + :template <class T>
point<T> point<T>::operator + (point<T> param)
{
point<T> add;
add.x = x + param.x;
add.y = y + param.y;
return add;
}The following main code uses the point class template:
int main()
{
point<int> A = point<int>(1, 2);
A.print();
A.move(4, -5);
A.print();point<float>B(3.2, 4.9);
cout << B.getx() << " " << B.gety() << endl ;point<string> C("day", "young");
C.print();
C.move("s","ster");
C.print();point<string> D("viet", "kambo");
point<string> E("nam", "dia");
point<string> F=D+E;
F.print();return 0;
}Running the code produces on the screen:
12
5-3
3.2 4.9
day young
days youngster
vietnam kambodia