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  1. #include <iostream>
  2.  
  3. class A
  4. {
  5. public:
  6.     A& operator==(const A&) {
  7.         return *this;
  8.     }
  9.  
  10.     operator bool() const {
  11.         return true;
  12.     }
  13. };
  14.  
  15. int main() {
  16.     A x, y, z;
  17.     std::cout << std::boolalpha << (x == y == z) << std::endl;
  18. }
  19.  
Success #stdin #stdout 0s 15232KB
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stdin
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Standard input is empty
stdout
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true
https://ideone.com/2mwZBQ
language:
C++ (gcc 8.3)
created:
5 years ago
visibility:
public

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