extern fn printf(message: *char, num: f64);

fn main() -> i32 {
    let b = 5;
    let mut otus = i32::malloc(1);
    otus[0] = 10500300;
    let potus = i32::malloc(1);
    i32::memcpy(potus, otus, 1);

    printf("log10 %f\n", f64::round(123.3) as f64);
    printf("log10 %f\n", potus[0] as f64);
    return potus[0];
}