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  1. #include <iostream>
  2.  
  3. template <typename T>
  4. class Vector {
  5.     T values [2];
  6. 	public:
  7. 		Vector (T first, T second){
  8. 			values[0]=first; values[1]=second;
  9. 		}
  10. 		int &operator[](int index){
  11. 			return values[index];
  12. 		}
  13. 		Vector<T> operator+(Vector<T> &other_vec){
  14. 			return Vector<T> (values[0]+other_vec[0],values[1]+other_vec[1]);
  15. 		}
  16. 		Vector<T> operator-(Vector<T> &other_vec){
  17. 			return Vector<T> (values[0]-other_vec[0],values[1]-other_vec[1]);
  18. 		}
  19. };
  20.  
  21. template <typename U>
  22. Vector<U> operator*(Vector<U> &a, int &b){
  23. 	return Vector<U> (a[0]*b, a[1]*b);
  24. }
  25. template <typename U>
  26. Vector<U> operator*(int &b, Vector<U> &a){
  27. 	return Vector<U> (a[0]*b, a[1]*b);
  28. }
  29.  
  30. int main(){
  31. 	Vector<int> test (1,2);
  32. 	Vector<int> test2 (3,4);
  33. 	int a = 5;
  34. 	std::cout << test[0] << " " << test[1] << std::endl;
  35. 	Vector<int> test3 = a*test;
  36. 	std::cout << test3[0] << " " << test3[1] << std::endl;
  37.  
  38.     return 0;
  39. }
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https://ideone.com/yS3PHk
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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