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

/**
 * @brief Illustrates how to use a master clause.
 * @details A parallel region is created, in which a certain part is executed by
 * every thread, and another part is executed only by the master thread.
 **/
int main(int argc, char* argv[])
{
    // Use 4 threads when creating OpenMP parallel regions
    omp_set_num_threads(4);

    // Create the parallel region
    #pragma omp parallel
    {
        printf("[Thread %d] Every thread executes this printf.\n", omp_get_thread_num());

        #pragma omp barrier

        #pragma omp master
        {
            printf("[Thread %d] Only the master thread executes this printf, which is me.\n", omp_get_thread_num());
        }
    }

    return EXIT_SUCCESS;
}