#include <stdio.h>
#include <omp.h>

int main(){
int x;
x = 2;
printf("Example 2\n");
#pragma omp parallel num_threads(2) shared(x)
{
if (omp_get_thread_num() == 0) {
x = 5;
} else {
/* Print 1: the following read of x has a race */
printf("1: Thread# %d: x = %d\n", omp_get_thread_num(),x );
}
#pragma omp barrier
if (omp_get_thread_num() == 0) {
/* Print 2 */
printf("2: Thread# %d: x = %d\n", omp_get_thread_num(),x );
} else {
/* Print 3 */
printf("3: Thread# %d: x = %d\n", omp_get_thread_num(),x );
}
}
return 0;
}