Load the operator stack to call the function () in C ++
c ++ function call () can be overloaded for objects of class type. when you overload (), you are not creating a new way to call a function.Overload class member access operator (->) in C ++
the class member access operator (->) can be overloaded, but it's quite complicated.Copy constructor in C ++
copy constructor is a constructor that creates an object by initializing it with an object of the same class, which was created earlier.