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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. struct Cast
  6. {
  7.     int i;
  8.     operator int() { return i++; }
  9.     Cast(int i):i(i){}
  10. };
  11.  
  12. struct Equl
  13. {
  14.     bool operator==(int) const { return true; }
  15. };
  16.  
  17.  
  18. int main()
  19. {
  20.     Cast i = 1;
  21.     cout << (i==1 && i==2 && i==3 && i==4) << endl;
  22.  
  23.     Equl q;
  24.     cout << (q==1 && q==2 && q==3 && q==4) << endl;
  25. }
  26.  
  27.  
  28.  
Success #stdin #stdout 0s 4404KB
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https://ideone.com/XM7O1s
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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