// Inheritance not allowed
//public struct ZPoint : XPoint { }
public void Ex2_Struct()
{
XPoint p1 = new XPoint(1, 1);
XPoint p2 = new XPoint(2, 2);
PassByValue(p2); // pass by value not reference
p1 = PassByValue(p2);
Console.WriteLine("Distance: {0}", p2.Distance(p1));
}