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  1. #include <iostream>
  2. #include <functional>
  3.  
  4. std::function<int(int)> gen_fun(int n) {
  5.     return [&n](int x) { return x*n; };
  6. }
  7.  
  8. int main() {
  9.     std::function<int(int)> f = gen_fun(5);
  10.     std::cout << f(1) << std::endl;
  11.     std::cout << f(2) << std::endl;
  12.     std::cout << f(3) << std::endl;
  13. }
Success #stdin #stdout 0s 3460KB
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Standard input is empty
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5
10
15
https://ideone.com/Ga0sbZ
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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