#include <iostream>
#include <string>
#include <functional>
using namespace std;
 
struct Manager {
    string name;
    void timeCount(std::function<void(void)> f) {
        std::cout << "This is " << name << " manager" << endl;
        f();
    }
};
 
void foo() {
	cout << "I'm foo" << endl;
}
 
struct Test {
	int x;
	void bar() {
		cout << "I'm bar " << x << endl;
	}
};
 
int main() {
	Manager mgr {"time"};
	mgr.timeCount(foo);
	Test tst = {234};
	mgr.timeCount(std::bind( &Test::bar, tst));
	return 0;
}

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