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  1. #include <iostream>
  2. #include <type_traits>
  3. using namespace std;
  4.  
  5. int main() 
  6. {
  7. 	int (*a1)(int) = nullptr;
  8. 	int (*a2)(const int) = nullptr;
  9. 	int (* const a3)(int) = nullptr;
  10. 	cout << is_same<decltype(a1), decltype(a2)>::value << " " 
  11. 		 << is_same<decltype(a1), decltype(a3)>::value << endl; //1 0
  12.  
  13. 	int (*b1)(int *) = nullptr;
  14. 	int (*b2)(int [100]) = nullptr;
  15. 	const int (*b3)(int *) = nullptr;
  16. 	cout << is_same<decltype(b1), decltype(b2)>::value << " " 
  17. 		 << is_same<decltype(b1), decltype(b3)>::value << endl; //1 0
  18.  
  19.  
  20. 	int (*c1)(int, long(char, int [5][10])) = nullptr;
  21. 	int (*c2)(const int, long(const char, int (*)[10])) = nullptr;
  22. 	int (* const c3)(int, long(char, int [5][10])) = nullptr;
  23. 	cout << is_same<decltype(c1), decltype(c2)>::value << " " 
  24. 		 << is_same<decltype(c1), decltype(c3)>::value << endl; //1 0
  25. }
Success #stdin #stdout 0s 4540KB
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stdin
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Standard input is empty
stdout
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1 0
1 0
1 0
https://ideone.com/nivaPJ
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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