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  1. #include <iostream>
  2. #include <utility>
  3. using namespace std;
  4.  
  5. template <typename F>
  6. void bar(const F& f)
  7. {
  8.     auto d = f.x;
  9.     f();
  10. }
  11.  
  12. void do_something (int x) { }
  13.  
  14. int main()
  15. {
  16. 	struct Tmp {
  17. 		int &x; 
  18. 		Tmp (int& x) : x(x) {}
  19. 	    void operator() () const {
  20.            do_something(x);
  21. 	    }
  22. 	};
  23.     int x;
  24.     Tmp t(x); 
  25.     bar(t);
  26. }
  27.  
Success #stdin #stdout 0s 15232KB
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stdout 
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https://ideone.com/z2nZCn
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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