#include <iostream>
#include <cstdarg>
using namespace std;
 
struct Test
{
	void foo() {};
	virtual void bar() {}; 
	virtual void bar2() {};
	virtual void bar3() {};
};
 
void print_hack(int dummy, ...)
{
	va_list argp;
	va_start(argp, dummy);
	long val = va_arg(argp, long);
	cout << val << endl;
	va_end(argp);
}
 
int main() {
	print_hack (0, &Test::foo);
	print_hack (0, &Test::bar);
	print_hack (0, &Test::bar2);
	print_hack (0, &Test::bar3);
	return 0;
}

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