inline bool operator !=(const Point<T> & pt) const;
The operator != function determines the inequality of two points by comparing their x and y coordinate values. This function is constant and does not modify either of the passed parameters.
The following expression is used to determine the result:
(pt1.x != pt2.x) || (pt1.y != pt2.y)
A Boolean value of true if the points are not equal, otherwise false.