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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. template <class T>
  5. class Foo
  6. {
  7. 	template <class> friend bool operator== (const Foo&, T); 
  8. };
  9.  
  10. template <class T>
  11. bool operator==(const Foo<T>&, T)
  12. {
  13.   return true;
  14. }
  15.  
  16. int main()
  17. {
  18. 	cout<<(Foo<int>() == 2);
  19. 	return 0;
  20. }
Success #stdin #stdout 0s 15224KB
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https://ideone.com/lpHMPb
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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