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  1. #include <functional>
  2. #include <iostream>
  3.  
  4. struct A
  5. {
  6.   int foo(int a)
  7.   {
  8.     return a;
  9.   }
  10. };
  11.  
  12. class B
  13. {
  14. private:
  15.   std::function<int(int)> pfoo;
  16. public:
  17.   B(std::function<int(int)> foofunc) 
  18.     : pfoo(foofunc) { }
  19.   int cFoo(int i)
  20.   {
  21.     return pfoo(i); 
  22.   }
  23. };
  24.  
  25. int main()
  26. {
  27. 	A my_a;
  28. 	B my_b(std::bind(&A::foo, my_a, std::placeholders::_1));
  29. 	std::cout << my_b.cFoo(2);
  30. 	return 0;
  31. }
Success #stdin #stdout 0s 3228KB
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https://ideone.com/uVkyhI
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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