pub fn fill_uninit(dest: &mut [MaybeUninit<u8>]) -> Result<&mut [u8], Error>Expand description
Fill potentially uninitialized buffer dest with random bytes from
the system’s preferred random number source and return a mutable
reference to those bytes.
On successful completion this function is guaranteed to return a slice
which points to the same memory as dest and has the same length.
In other words, it’s safe to assume that dest is initialized after
this function has returned Ok.
No part of dest will ever be de-initialized at any point, regardless
of what is returned.
§Examples
ⓘ
#![feature(maybe_uninit_uninit_array)]
let mut buf = core::mem::MaybeUninit::uninit_array::<1024>();
let buf: &mut [u8] = getrandom::fill_uninit(&mut buf)?;