use core::ops::{Deref, DerefMut}; use core::{mem, slice}; #[derive(Copy, Clone, Debug, Default)] #[repr(packed)] pub struct Packet { pub id: usize, pub a: usize, pub b: usize, pub c: usize, pub d: usize } impl Deref for Packet { type Target = [u8]; fn deref(&self) -> &[u8] { unsafe { slice::from_raw_parts(self as *const Packet as *const u8, mem::size_of::()) as &[u8] } } } impl DerefMut for Packet { fn deref_mut(&mut self) -> &mut [u8] { unsafe { slice::from_raw_parts_mut(self as *mut Packet as *mut u8, mem::size_of::()) as &mut [u8] } } }