How does copy constructor work?

Question

How does a copy constructor work in c++

Error 1 error C2064: term does not evaluate to a function taking 1 arguments c:\\users\\thuan\\dropbox\\homework\\css

Answer 1

You've already constructed object1 with the default constructor when you do

IntSet object1;

To copy consrtuct you need to change this to

IntSet object1( object2 );

at some point after defining object2 (you will probably want to swap the names of your two variables).