Stack is set up by the C/C++ runtime support when your function is called.
1. Setup stack for newElement2();
2. Stack for newElement2 include passed parameter.
3. Pass control to newElement2
4. clean up stack for newElement2.
So unless you create variable in heap, it will go away.
Stack gets set up a lot of times and frequently, so it will be very expensive to clean up or zero out. So it is not done like that.