diff options
Diffstat (limited to 'src/libcore')
| -rw-r--r-- | src/libcore/hash/sip.rs | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/libcore/hash/sip.rs b/src/libcore/hash/sip.rs index 7ebe01e26dc..c4fbd9dbada 100644 --- a/src/libcore/hash/sip.rs +++ b/src/libcore/hash/sip.rs @@ -121,7 +121,9 @@ macro_rules! load_int_le { }}; } -/// Loads an u64 using up to 7 bytes of a byte slice. +/// Loads a u64 using up to 7 bytes of a byte slice. It looks clumsy but the +/// `copy_nonoverlapping` calls that occur (via `load_int_le!`) all have fixed +/// sizes and avoid calling `memcpy`, which is good for speed. /// /// Unsafe because: unchecked indexing at start..start+len #[inline] |