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

pthread_t nit1, nit2;

float a = 4.5;
float b = 5.3;
float c = 1.0;

pthread_barrier_t barrier;

void *func1 (void* arg){
    pthread_barrier_wait(&barrier);
    printf("nit1 c = %f \n", c);
}

void *func2 (void* arg){
    c = a + b;
    pthread_barrier_wait(&barrier);
}

int main(){

    pthread_barrier_init(&barrier, NULL, 2);

    pthread_create( &nit1, NULL, func1, NULL);
    pthread_create( &nit2, NULL, func2, NULL);

    // to je v bistvu prepreka, kjer se pocakoajo vse niti:
    pthread_join(nit1, NULL);
    pthread_join(nit2, NULL);

    printf("main c = %f \n", c);

    return 0;
}