Override `clone_from`

diff --git a/src/lib.rs b/src/lib.rs
index 548202ff4e760818be3d7da02ea9d61a71b87eba..c88f61ebde61639aad5f4f485e0c1f7529e7f2db 100644 (file)
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -106,6 +106,10 @@ impl<B: BitBlock> Clone for BitSet<B> {
             bit_vec: self.bit_vec.clone(),
         }
     }
+
+    fn clone_from(&mut self, other: &Self) {
+        self.bit_vec.clone_from(&other.bit_vec);
+    }
 }
 
 impl<B: BitBlock> Default for BitSet<B> {