rust_example.rs

pub fn search_bytes_single_input(byte_array: &[u8]) -> String {
    let mut number_of_bytes_str = "".to_string();
    for i in 0..10 {
        number_of_bytes_str.push_str(&byte_array[i].to_string());
    }
    let number_of_bytes_usize: usize = number_of_bytes_str.parse().unwrap();
    let needle: &[u8] = &byte_array.get(10..10 + number_of_bytes_usize).unwrap();
    let haystack: &[u8] = &byte_array.get(10 + number_of_bytes_usize..).unwrap();
    match haystack.windows(needle.len()).position(|window| window == needle){
        Some(_) => "Present".to_string(),
        None => "Absent".to_string()
    }
}