/* Version a */
define f(a[], l) {
    auto i
    for (i = 0; i < l; i++) a[i]
}

/* Version b */
define g(a[]) {
    auto i
    for (i = 0; a[i] != -1; i++) a[i]
}

/* Version c */
define h(a[]) {
    auto i

    for (i = 1; i <= a[0]; i++) a[i]
}