use read_collection::ReadBack;
use std::io::Read;
fn main() {
let values = [1, 2, 3];
let mut buffer = [0, 0];
assert_eq!(values.as_slice().read(&mut buffer).ok(), Some(2));
assert_eq!(buffer, [1, 2]);
println!("With Read: buffer = [{}, {}]", buffer[0], buffer[1]);
assert_eq!(values.as_slice().read_back(&mut buffer).ok(), Some(2));
assert_eq!(buffer, [2, 3]);
println!("With ReadBack: buffer = [{}, {}]", buffer[0], buffer[1]);
}