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Point Class Impl File
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// This is a implementation file for point4.h.  It contains
// the body of the only long-ish function.
#include "point4.h"
#include <math.h>

// Distance to another point.  Pythagorean thm.
double Point::dist(Point other) const
        double xd = xval - other.xval;
        double yd = yval - other.yval;
        return sqrt(xd*xd + yd*yd);

// Print points using the << operator, so they can be printed along with
// other data types.
ostream & operator<<(ostream &strm, Point p)
        return strm;