point2.cpp

经典的<<C how to program>一书第三版的例程。非常适合于C的初学者。

// Fig. 19.8: point2.cpp
// Member functions for class Point
#include "point2.h"

// Constructor for class Point
Point::Point( int a, int b ) { setPoint( a, b ); }

// Set the x and y coordinates
void Point::setPoint( int a, int b )
{
   x = a;
   y = b;
}

// Output the Point
ostream &operator<<( ostream &output, const Point &p )
{
   output << '[' << p.x << ", " << p.y << ']';

   return output;          // enables cascading
}



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