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  1. #include <iostream>
  2. #include <functional>
  3. int main()
  4. {
  5. 	std::function<int(int)> factorial = [&factorial](int n) -> int
  6. 	{
  7. 		if(n == 0)
  8. 			return 1;
  9.  
  10. 		return n * factorial(n - 1);
  11. 	};
  12.  
  13. 	std::cout << factorial(5) << std::endl;
  14. 	return 0;
  15. }
Success #stdin #stdout 0s 2960KB
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stdin 
Standard input is empty
stdout 
120
https://ideone.com/Vdw5h
language:
C++14 (gcc 8.3)
created:
12 years ago
visibility:
public

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