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

#define NUM_THREADS 16

void *thread(void *thread_id)
{
    int id = *((int *)thread_id);
    printf("Hello from thread %d\n", id);

    return NULL;
}

int main(int argc, char *argv[])
{
    pthread_t threads[NUM_THREADS];
    int th[NUM_THREADS];

    for (int i = 0; i < NUM_THREADS; i++)
    {
        th[i] = i;
        assert(pthread_create(&threads[i], NULL, thread, &th[i]) == 0);
    }

    for (int i = 0; i < NUM_THREADS; i++)
        assert(pthread_join(threads[i], NULL) == 0);

    return EXIT_SUCCESS;
}