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Rename and expose BytesMut::spare_capacity_mut (#572)

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This commit is contained in:
Yotam Ofek
2022-10-04 12:23:07 +02:00
committed by GitHub
parent a36f661354
commit 6e4b1f244b
2 changed files with 41 additions and 8 deletions
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src/buf/uninit_slice.rs
+5 -1
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@@ -22,6 +22,10 @@ use core::ops::{
pub struct UninitSlice([MaybeUninit<u8>]);
impl UninitSlice {
pub(crate) fn from_slice(slice: &mut [MaybeUninit<u8>]) -> &mut UninitSlice {
unsafe { &mut *(slice as *mut [MaybeUninit<u8>] as *mut UninitSlice) }
}
/// Create a `&mut UninitSlice` from a pointer and a length.
///
/// # Safety
@@ -44,7 +48,7 @@ impl UninitSlice {
pub unsafe fn from_raw_parts_mut<'a>(ptr: *mut u8, len: usize) -> &'a mut UninitSlice {
let maybe_init: &mut [MaybeUninit<u8>] =
core::slice::from_raw_parts_mut(ptr as *mut _, len);
&mut *(maybe_init as *mut [MaybeUninit<u8>] as *mut UninitSlice)
Self::from_slice(maybe_init)
}
/// Write a single byte at the specified offset.