//
// This is example code from Chapter 9.7.2 "Copying" of 
// "Programming -- Principles and Practice Using C++" by Bjarne Stroustrup
//

#include <iostream>

using namespace std;

//------------------------------------------------------------------------------

// simple Date (use Month type):
class Date {
public:
    enum Month {
        jan=1, feb, mar, apr, may, jun, jul, aug, sep, oct, nov, dec
    };

    Date(int yy, Month mm, int dd) : y(yy), m(mm), d(dd) // check for valid date and initialize
    {
        // ...
    }

    friend ostream& operator<<(ostream& os, const Date& d)
    {
        return os << '(' << d.y << ',' << d.m << ',' << d.d << ')';
    }

private:
    int   y; // year
    Month m;
    int   d; // day
};

//------------------------------------------------------------------------------

int main()
{
    Date holiday(1978, Date::jul, 4);     // initialization
    Date d2 = holiday;
    Date d3 = Date(1978, Date::jul, 4);

    holiday = Date(1978, Date::dec, 24);  // assignment
    d3 = holiday;

    cout << Date(1978, Date::dec, 24);
    return 0;
}

//------------------------------------------------------------------------------