How to define a class method so that the object is not passed to it by reference?

Question

Programming

Let be

class MyClass 
{
  int x, y;
  int sum1();
}

MyClass::sum1() { return x+y; }

If I understand correctly, then

MyClass MyVar;
MyVar.sum1();

is equivalent to calling the function sum2

int sum2(MyClass &MyVar) { return MyVar.x + MyVar.y }
MyClass MyVar;
sum2(MyClass &MyVar);

And how can you define a class method so that the object is not passed to it by reference? To have something like this:

int sum2(MyClass MyVar) { return MyVar.x + MyVar.y }
MyClass MyVar;
sum2(MyClass MyVar);

Answer 1

UPD. Now I understand what you mean. It is not possible in this form.

Answer 2

Some tricky question) Apparently so

//описание
static int MyClass::sum2(MyClass MyVar) { return MyVar.x + MyVar.y }

//вызов
MyClass::sum2(MyVar);