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//! Utilities to help with buffering.
#![allow(unsafe_code)]
use core::mem::MaybeUninit;
use core::slice;
/// Split an uninitialized byte slice into initialized and uninitialized parts.
///
/// # Safety
///
/// At least `init` bytes must be initialized.
#[inline]
pub(super) unsafe fn split_init(
buf: &mut [MaybeUninit<u8>],
init: usize,
) -> (&mut [u8], &mut [MaybeUninit<u8>]) {
let (init, uninit) = buf.split_at_mut(init);
let init = slice::from_raw_parts_mut(init.as_mut_ptr() as *mut u8, init.len());
(init, uninit)
}