/* Racing example */
#include <iostream>
#include <boost/thread.hpp>
#include <boost/atomic.hpp>
#include <boost/thread/mutex.hpp>
using namespace std; 
using namespace boost; 
//int counter=0; 
boost::atomic<int> counter(0);
void worker() 
{
	for (int i=0;i<10000;i++) {
		mtx.lock();
		++counter;
		mtx.unlock();
	}
}

int main() {
	thread *t1=new thread(worker);
	thread t2(worker);
	thread *t3=new thread(worker);
	thread *t4=new thread(worker);

	t1->join();
	t2.join();
	t3->join();
	t4->join();
	cout << "Final counter" << counter <<endl;
	return 0;

}