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  1. #include <iostream>
  2. #include <functional>
  3. using namespace std;
  4.  
  5. template <typename ReturnType, typename... Args>
  6. auto CallIt( std::function<ReturnType( Args... )> method ) -> std::function<ReturnType( Args... )>
  7. {
  8.     return method;
  9. }
  10.  
  11.  
  12.  
  13. int main() {
  14.  
  15.     std::function<bool(int,int)> lambda = [] ( int a, int b ) { return a > b; };
  16.  
  17.     auto test = CallIt( lambda );
  18.     cout << test(4,1);
  19.  
  20.  
  21.     return 0;
  22. }
Success #stdin #stdout 0s 3428KB
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https://ideone.com/k7y55p
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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