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Reword safety comments in core/hash/sip.rs

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Thom Chiovoloni 2022-05-30 01:06:08 -07:00
parent 84288ed6d5
commit eeacb4403c
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1 changed files with 4 additions and 2 deletions
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6
library/core/src/hash/sip.rs
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@ -96,7 +96,8 @@ macro_rules! compress {
/// `copy_nonoverlapping` to let the compiler generate the most efficient way /// `copy_nonoverlapping` to let the compiler generate the most efficient way
/// to load it from a possibly unaligned address. /// to load it from a possibly unaligned address.
/// ///
/// Unsafe because: unchecked indexing at i..i+size_of(int_ty) /// Safety: this performs unchecked indexing of `$buf` at
/// `$i..$i+size_of::<$int_ty>()`, so that must be in-bounds.
macro_rules! load_int_le { macro_rules! load_int_le {
($buf:expr, $i:expr, $int_ty:ident) => {{ ($buf:expr, $i:expr, $int_ty:ident) => {{
debug_assert!($i + mem::size_of::<$int_ty>() <= $buf.len()); debug_assert!($i + mem::size_of::<$int_ty>() <= $buf.len());
@ -114,7 +115,8 @@ macro_rules! load_int_le {
/// `copy_nonoverlapping` calls that occur (via `load_int_le!`) all have fixed /// `copy_nonoverlapping` calls that occur (via `load_int_le!`) all have fixed
/// sizes and avoid calling `memcpy`, which is good for speed. /// sizes and avoid calling `memcpy`, which is good for speed.
/// ///
/// Unsafe because: unchecked indexing at start..start+len /// Safety: this performs unchecked indexing of `buf` at `start..start+len`, so
/// that must be in-bounds.
#[inline] #[inline]
unsafe fn u8to64_le(buf: &[u8], start: usize, len: usize) -> u64 { unsafe fn u8to64_le(buf: &[u8], start: usize, len: usize) -> u64 {
debug_assert!(len < 8); debug_assert!(len < 8);