Vec::insert_slice_clone: fix unsound Vec after T::clone panic

qwertz19281 · Feb 4, 2021 · 20cb73d · 20cb73d
1 parent f4eae5b
commit 20cb73d
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/src/imp/vec.rs b/src/imp/vec.rs
@@ -81,6 +81,7 @@ impl<T> VecExt<T> for Vec<T> {
         }
 
         unsafe {
+            self.set_len(0);
             {
                 let mut p = self.as_mut_ptr().add(index);
                 ptr::copy(p, p.add(slen), vlen - index);