Revert "removed an invalid safety comment"; was confused for a moment

This reverts commit 8ab3c8b.
RustCrypto · Jan 22, 2024 · 9961905 · 9961905
1 parent 8ab3c8b
commit 9961905
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/zeroize/src/lib.rs b/zeroize/src/lib.rs
@@ -805,6 +805,10 @@ unsafe fn volatile_set<T: Copy + Sized>(dst: *mut T, src: T, count: usize) {
 #[inline(always)]
 pub unsafe fn zeroize_flat_type<T: Sized>(data: *mut T) {
     let size = mem::size_of::<T>();
+    // Safety:
+    //
+    // This is safe because `mem::size_of<T>()` returns the exact size of the object in memory, and
+    // `data_ptr` points directly to the first byte of the data.
     volatile_set(data as *mut u8, 0, size);
     atomic_fence()
 }