When passing a class by-value, does the caller or callee call the destructor?

Question

Suppose that I have the following (trimmed down) code:

class P { P(); P(const P&); ~P(); }

void foo(P x) {
  ...
}

         


        

Answer 1

The destructor is called whenever an object's lifetime ends, which includes

end of scope, for objects with automatic storage duration and for temporaries whose life was extended by binding to a reference

So bar which is the owner of copied object will call dtor on the copied object. Cppreference