first_non_zero_bit_position.rs

fn first_non_zero_bit_position(input: u32) -> u32 {
    let mut remaining: u32 = input;
    let mut first_non_zero: u32 = 1;
    while (remaining & 1) == 0 && remaining > 1 {
        remaining /= 2;
        first_non_zero += 1;
    }
    first_non_zero
}