/*Racing example*/
#include <iostream>
#include <boost/thread.hpp>
//#include <boost/atomic.hpp>
#include <boost/thread/mutex.hpp>
using namespace boost;
using namespace std;
int counter=0;
boost::mutex mtx;
//boost::atomic<int> counter(0);
void worker() {
	for (int i=0;i<100000; ++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;

}