Question

    class Sample
    {
       public:
       Sample(){}
       Sample(const Sample& obj){ cout<<"C.C. with 1 argument called"<<endl;}
       Sample(const Sample& obj, int i){ cout<<"C.C. with 2 arguments called"<<endl;}
    };
    void main()
    {
         Sample s1;
         Sample s2 = s1; // Here, C.C with 1 arg. called.
    }

There are few questions:

1. How I can make a call to copy constructor having 2 arguments?
2. When we require a copy constructor with 1 argument and when we require C.C with 2 argument?

Answer 1

A constructor with 2 (or more) required arguments is not a copy constructor.

1.:

Sample s2(s1, 0);