int Func2(int value = 0, int value2=2, double amount = 50.0) {
  cout<<value<<" "<<value2<<" "<<amount<<endl;
  return value2;
}

void default_argument()
{
    cout<<"Func2(       ); --> ";
    Func2();

    cout<<"Func2(67     ); --> ";
    Func2(67);

    cout<<"Func2(10, 299); --> ";
    Func2(10, 299);

    cout<<"Func2(1,1,1.0); --> ";
    Func2(10, 1, 79.8);

    return ;
}

==================================================

Func2(       ); --> 0 2 50
Func2(67     ); --> 67 2 50
Func2(10, 299); --> 10 299 50
Func2(1,1,1.0); --> 10 1 79.8