The first method does not use the copy constructor and allows to change the original object. While the second method uses the copy constructor to create a temporary object and therefore does not allow to change the original object.
Thank u for your answer. So the
The first method does not use the copy constructor and allows to change the original object. While the second method uses the copy constructor to create a temporary object and therefore does not allow to change the original object.
Thank u for your answer. So the second method returns a copy of a?
so after calling the second method I have 2 A objects? and if it is a copy of a why cant I change it? after all its a copy i.e. different object