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  1. #include <iostream>
  2. #include <type_traits>
  3.  
  4. using namespace std;
  5.  
  6. struct A
  7. {
  8. 	int f()&&
  9. 	{
  10. 		return 0;
  11. 	}
  12. };
  13.  
  14. template<typename T1, typename T2>
  15. constexpr bool is_same_v = std::is_same<T1, T2>::value;
  16.  
  17. int main() {
  18. 	auto ptr = &A::f();
  19. 	//std::cout<<is_same_v<decltype(ptr), int()> <<" "<< is_same_v<decltype(ptr), int(A::*)()>;
  20. 	return 0;
  21. }
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
prog.cpp: In function ‘int main()’:
prog.cpp:18:19: error: cannot call member function ‘int A::f() &&’ without object
  auto ptr = &A::f();
                   ^
stdout
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Standard output is empty
https://ideone.com/fpGnV8
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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