add virtual destructor to BaseFilterFunctor (#460)

nmslib · May 13, 2023 · 1925428 · 1925428
1 parent cd844b5
commit 1925428
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/hnswlib/hnswlib.h b/hnswlib/hnswlib.h
@@ -119,6 +119,7 @@ typedef size_t labeltype;
 class BaseFilterFunctor {
  public:
     virtual bool operator()(hnswlib::labeltype id) { return true; }
+    virtual ~BaseFilterFunctor() {};
 };
 
 template <typename T>