#include #include #include struct fibo { int limit; int answer; }; int fib(int n) { int i = 0; if (n == 1 || n == 0) return 1; for (i = 0; i < n; i++) { return (fib(n - 1) + fib(n - 2)); } return (-1); } void *runner1(void *arg) { struct fibo *fibl = (struct fibo *) arg; fibl->answer = fib(fibl->limit); pthread_exit(0); } int main(int argc, char **argv) { int i; pthread_t id[argc]; pthread_attr_t attr; struct fibo d[argc]; if (argc < 2) { printf("usage: %s num1 num2 num3... numN", argv[0]); return (1); } pthread_attr_init(&attr); for (i = 1; i < argc; i++) { d[i - 1].limit = atoi(argv[i]); d[i - 1].answer = 0; pthread_create(&id[i - 1], &attr, runner1, &d[i - 1]); } for (i = 0; i < argc - 1; i++) { pthread_join(id[i], NULL); printf("\n\nFib of limit: %d is %d", d[i].limit, d[i].answer); } return (0); }