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  1. #include <functional>
  2. #include <iostream>
  3.  
  4. void foo(double arg){
  5. 	std::cout << "foo, argument = " << arg << "\n";
  6. }
  7.  
  8. struct foo_functor{
  9.   void operator()(float arg) const{
  10.   	std::cout << "foo_functor, argument = " << arg << "\n";
  11.   }
  12. };
  13.  
  14. int main(){
  15.   std::function<void(int)> f1(foo), f2((foo_functor()));
  16.   f1(5);
  17.   f2(6);
  18.   f1(4.7);
  19. }
  20.  
Success #stdin #stdout 0s 15240KB
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stdin
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Standard input is empty
stdout
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foo, argument = 5
foo_functor, argument = 6
foo, argument = 4
https://ideone.com/PD9rwW
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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