Fix clippy::ref_as_ptr warnings

Author: pvdrz

src/lib.rs

@@ -146,6 +146,7 @@
     clippy::redundant_pub_crate,
     clippy::option_if_let_else,
     clippy::ptr_as_ptr,
+    clippy::ref_as_ptr,
     clippy::doc_markdown,
     clippy::semicolon_if_nothing_returned,
     clippy::if_not_else

src/vec/drain.rs

@@ -73,7 +73,7 @@ impl<T> Iterator for Drain<'_, T> {
     fn next(&mut self) -> Option<T> {
         self.iter
             .next()
-            .map(|elt| unsafe { ptr::read(elt as *const _) })
+            .map(|elt| unsafe { ptr::read(core::ptr::from_ref(elt)) })
     }
 
     fn size_hint(&self) -> (usize, Option<usize>) {
@@ -86,7 +86,7 @@ impl<T> DoubleEndedIterator for Drain<'_, T> {
     fn next_back(&mut self) -> Option<T> {
         self.iter
             .next_back()
-            .map(|elt| unsafe { ptr::read(elt as *const _) })
+            .map(|elt| unsafe { ptr::read(core::ptr::from_ref(elt)) })
     }
 }