odd static test in C

odd.c

/* gcc (Ubuntu 4.4.3-4ubuntu5) 4.4.3
 * 
 *  Why does the second function not properly update the static variable i?
 *  I encountered this behavior in a more complex for loop.
 */
#include <stdio.h>

int static_good()
{
    static int i = 0;

    i++;

    return i;
}

int not_static_good()
{
    static int i = 0;
    for (; i < 10; i++)
        return i; /* I think the return occurs before the loop increment...a bit unexpected */
    return 0;
}

int main()
{
    while (1)
        fprintf(stdout, "%d -- %d\n", static_good(), not_static_good());
}