operator 2b 2b overloading c 2b 2b

1class Point
2{
3public:
4	Point& operator++() { ... }		// prefix
5	Point operator++(int) { ... }	// postfix
6  	friend Point& operator++(Point &p);			// friend prefix
7  	friend Point operator++(Point &p, int);		// friend postfix
8  	// in Microsoft Docs written "friend Point& operator++(Point &p, int);"
9};
10