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  1. #include <iostream>
  2. #include <new>
  3. #include <typeinfo>
  4. #include <string>
  5. #include <vector>
  6. #include <functional>
  7. #include <algorithm>
  8. using namespace std;
  9.  
  10. class A {
  11. 	public:
  12. 	A() {
  13. 		cout << "Calling A constructor" << endl;
  14. 	}
  15. 	int x=0;
  16. 	virtual void someshit() {
  17. 		cout << "Base class function" << endl;
  18. 	}
  19. };
  20.  
  21. class D : public A {
  22. 	public :
  23. 	virtual void someshit() {
  24. 		cout << "Derived class function" << endl;
  25. 	}
  26. };
  27.  
  28. int main() {
  29. function<bool (const string*)> fp = &string::empty;
  30. 	auto se=&string::empty;
  31. 	vector<string> v{"Hello", "xxx", ""};
  32. 	vector<string*> vs{{new string("Hello")}};
  33. 	for_each(vs.begin(), vs.end(), fp);
  34. 	return 0;
  35. }
Success #stdin #stdout 0s 3468KB
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https://ideone.com/ugrcO9
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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