cast_ptr_alignment: Mention legal use under known problems

Refs #2881.
rust-lang · Jul 9, 2019 · f831b09 · f831b09
1 parent 5f890d4
commit f831b09
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/clippy_lints/src/types.rs b/clippy_lints/src/types.rs
@@ -789,7 +789,8 @@ declare_clippy_lint! {
     /// **Why is this bad?** Dereferencing the resulting pointer may be undefined
     /// behavior.
     ///
-    /// **Known problems:** None.
+    /// **Known problems:** Using `std::ptr::read_unaligned` and `std::ptr::write_unaligned` or similar
+    /// on the resulting pointer is fine.
     ///
     /// **Example:**
     /// ```rust