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  1. #include <iostream>
  2.  
  3. class InnerPoint
  4. {
  5. private:
  6.     int value;
  7.  
  8. public:
  9.     InnerPoint(int value) : value(value) { }
  10.  
  11.     int operator[](int b)
  12.     {
  13.         return value * b;
  14.     }
  15. };
  16.  
  17. class Point
  18. {
  19. private:
  20.     int x;
  21.     int y;
  22.  
  23. public:
  24.     Point(int x, int y) : x(x), y(y) { }
  25.  
  26.     InnerPoint operator[](int a)
  27.     {
  28.         int value = x + y + a;
  29.  
  30.         return InnerPoint(value);
  31.     }
  32. };
  33.  
  34. int main()
  35. {
  36.     Point point(2, 4);
  37.  
  38.     std::cout << point[3][5] << "\n";
  39. }
Success #stdin #stdout 0s 2852KB
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45
https://ideone.com/oDnbVR
language:
C++14 (gcc 8.3)
created:
12 years ago
visibility:
public

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