Class objects can be assigned to each other using default memberwise assignment : class definition « Class « C++ Tutorial

1. C++ Tutorial
2. Class
3. class definition

#include <iostream>
using std::cout;
using std::endl;

class Date 
{
public:
   Date( int = 1, int = 1, int = 2007 );
   void print();
private:
   int month;
   int day;
   int year;
};

Date::Date( int m, int d, int y )
{
   month = m;
   day = d;
   year = y;
}
void Date::print() 
{ 
   cout << month << '/' << day << '/' << year; 
}

int main()
{
   Date date1( 8, 8, 2008 );
   Date date2;

   cout << "date1 = ";
   date1.print();
   cout << "\ndate2 = ";
   date2.print();

   date2 = date1;

   cout << "\n\nAfter default memberwise assignment, date2 = ";
   date2.print();
   cout << endl;
   return 0;
}

date1 = 8/8/2008
date2 = 1/1/2007

After default memberwise assignment, date2 = 8/8/2008