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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class object_c {
  5.  
  6. public:
  7.     int			x,
  8. 				y;
  9.  
  10. 	object_c(int X, int Y) : x (X), y (Y){}
  11. };
  12.  
  13. class calc_c {
  14. private:
  15. 	object_c	*ship,
  16. 				*targ,
  17. 				*ref;
  18.  
  19. public:
  20. 	int			pos2			(object_c A, object_c B) {
  21. 		return (A.x-B.x)*(A.x-B.x);
  22. 	}
  23. 	int			ship_pos		(object_c A){return pos2(*ship, A);}	//these
  24. 	int			ship_targ_pos	()			{return pos2(*ship, *targ);}//should be
  25. 	int			ship_ref_pos	()			{return pos2(*ship, *ref);} //replaced
  26.  
  27. 	void		set_ship		(object_c *A){ship = A;}
  28. 	void		set_targ		(object_c *A){targ = A;}
  29. 	void		set_ref			(object_c *A){ref = A;}
  30. } calc;
  31.  
  32. int main() {
  33.  
  34. 	object_c Ship(0,1), Targ(10,11), Ref(20,21);	//notice capitalization
  35.  
  36. 	calc.set_ship(&Ship);
  37. 	calc.set_targ(&Targ);
  38. 	calc.set_ref (&Ref);
  39.  
  40. 	cout << calc.pos2			(Ship, Targ)<< endl;//should
  41. 	cout << calc.ship_pos		(Targ) 		<< endl;//be
  42. 	cout << calc.ship_targ_pos	()			<< endl;//identical
  43.  
  44. 	return 0;
  45. }
  46.  
Success #stdin #stdout 0.01s 2724KB
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https://ideone.com/jypJQS
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

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