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// A more intelligent Point type.

public struct Point

{

...

// overloaded operator +

public static Point operator + (Point p1, Point p2)

{ return new Point(p1.x + p2.x, p1.y + p2.y); }

// overloaded operator -

public static Point operator - (Point p1, Point p2)

{ return new Point(p1.x - p2.x, p1.y - p2.y); }

}

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I N D E X E R S, O P E R ATO R S, A N D   P O I N T E R S

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8849CH12.qxd  9/26/07  11:31 AM  Page 390

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The logic behind operator + is simply to return a brand new Point based on the summation of

the fields of the incoming Point parameters.  Thus, when you write pt1 + pt2, under the hood you

can envision the following hidden call to the static operator + method: