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  1. #include <functional>
  2. #include <iostream>
  3. using namespace std;
  4.  
  5. void f1(std::function<void()> callback) {
  6.   std::cout << "Hello!" << endl;
  7.   callback();
  8.   std::cout << "Bye!" << endl;
  9. }
  10.  
  11. int main() {
  12.     f1([] {
  13.         std::cout << "Kimchi!" << endl;
  14.     });
  15.     return 0;
  16. }
  17.  
Success #stdin #stdout 0s 3456KB
comments (?)
stdin 
Standard input is empty
stdout 
Hello!
Kimchi!
Bye!
https://ideone.com/FFWXjV
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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