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  1. class Encapsulator
  2. {
  3.   protected:
  4.     int i;
  5.   public:
  6.     Encapsulator(int v) : i(v) {}
  7. };
  8.  
  9. Encapsulator f(int x) { return x + 2; }
  10.  
  11. #include <iostream>
  12. int main( void )
  13. {
  14.     Encapsulator e = f(7);
  15.     // forbidden: std::cout << e.i << std::endl;
  16.     struct Gimme : Encapsulator { static int Encapsulator::* it() { return &Gimme::i; } };
  17.     int Encapsulator::*pi = Gimme::it();
  18.     std::cout << e.*pi << std::endl;
  19. }
  20.  
Success #stdin #stdout 0s 2852KB
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https://ideone.com/zJX5U6
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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