Problem with return

Hey all, I'm new to these boards even though I've been surfing them for a few months now. I thought this would be a good starting post. Anyway, I'm taking computer intro in college (using C) and I have a problem with a certain program I have to complete. I have to write a program that inputs a series of integers and passes them one at a time to function even which uses the remainder operator to determine if an integer is even. The function should take an integer argument and return 1 if the integer is even and o otherwise. Now, I thought this is how it should look, but I can't get the return to actually return a 1 for even, or 0 for odd.

Code:

---

#include <stdio.h>

int even(int num);

void main()
{
        int num;
        printf("Enter a positive integer (-1 to exit): ");
        scanf("%d", &num);
        even(num);

        while (num != -1)
        {
                printf("Enter a positive integer (-1 to exit): ");
                scanf("%d", &num);
                even(num);
        }
}

int even(int num)
{
        if (num % 2 == 0)
                return 1;
        else
                return 0;
}

---

Code:

---

even(num);

---

You probably want to save the result of that function call.

Code:

---

is_even = even(num);

---

http://faq.cprogramming.com/cgi-bin/...&id=1043284385

Ah, thank you.

*cough* void *cough* main *choke* *splutter*

Why void main() is bad. (Scroll down to void main.)