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  1. #include <functional>
  2. #include <cstdio>
  3.  
  4. struct C { int dummy1; char const * dummy2; };
  5.  
  6. struct A
  7. {
  8. 	std::function<void(C)> m_callback;
  9. 	void foo(){
  10. 		m_callback(C{123, "foo"});
  11. 	}
  12. };
  13.  
  14. struct B
  15. {
  16. 	B(){
  17. 		a.m_callback = std::bind(&B::NoArgs, this);
  18. 	}
  19. 	void NoArgs(){
  20. 		printf("wtf?");
  21. 	}
  22.  
  23. 	A a;
  24. };
  25.  
  26. int main() {
  27. 	B b;
  28. 	b.a.foo();
  29. 	return 0;
  30. }
Success #stdin #stdout 0s 4456KB
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stdin
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Standard input is empty
stdout
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wtf?
https://ideone.com/3hKLiB
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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