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  1. #include <iostream>
  2.  
  3. struct MyType
  4. {
  5.     operator size_t(){return 0;}
  6.     MyType &operator[](size_t){return*this;}
  7. };
  8.  
  9. int main()
  10. {
  11.     int a[] = {1, 2}, b = 0;
  12.     MyType mt;
  13.     std::cout << mt[a] << std::endl;
  14.     //std::cout << b[mt] << std::endl;
  15.     std::cout << mt[mt] << std::endl;
  16. }
  17.  
Success #stdin #stdout 0s 2852KB
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stdin 
Standard input is empty
stdout 
1
0
https://ideone.com/BVAPNr
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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