class a
{
        int x;
public:
        a()
        {
        }
        a(int i){x=i;cout<<"in a "<<x<<endl;}
        a(a &obj){cout<<"in copy cons of a"<<endl;}

};

a obj1=14;      //error no matching call to a::a(a)


why.....
and just adding a const in the constructor  saves me from error...but
how....

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