Point.h

#ifndef POINT_GUARD
#define POINT_GUARD

//typedef void (*Callback)(void*,void*);

namespace Graph_lib {

    struct Point {
        int x, y;
        //  Point(int xx, int yy) : x(xx), y(yy) { }
        //  Point() :x(0), y(0) { }

        //  Point& operator+=(Point d) { x+=d.x; y+=d.y; return *this; }
    };

    inline bool operator==(Point a, Point b) { return a.x == b.x && a.y == b.y; }

    inline bool operator!=(Point a, Point b) { return !(a == b); }


}
#endif