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Unix Threads in C

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How to pass arguments to threads in C

#include <stdio.h> #include <stdlib.h> #include <pthread.h> #include <unistd.h> int primes[10] = { 2, 3, 5, 7, 11, 13, 17, 19, 23, 29 }; void* routine(void* arg) { sleep(1); int index = *(int*)arg; printf("%d ", primes[index]); } int main(int argc, char* argv[]) { pthread_t th[10]; int i; for (i = 0; i < 10; i++) { if (pthread_create(&th[i], NULL, &routine, &i) != 0) { perror("Failed to created thread"); } } for (i = 0; i < 10; i++) { if (pthread_join(th[i], NULL) != 0) { perror("Failed to join thread"); } } return 0; }