v0.2.55..v0.2.56 changeset ElementIdsVisitor.h

diff --git a/hoot-core/src/main/cpp/hoot/core/visitors/ElementIdsVisitor.h b/hoot-core/src/main/cpp/hoot/core/visitors/ElementIdsVisitor.h
index a676939..fe6b7ac 100644
--- a/hoot-core/src/main/cpp/hoot/core/visitors/ElementIdsVisitor.h
+++ b/hoot-core/src/main/cpp/hoot/core/visitors/ElementIdsVisitor.h
@@ -35,7 +35,7 @@ namespace hoot
 {
 
 /**
- * Used to get a collection of IDs for the elements that satisfy the specified criterion
+ * Used to get a collection of unordered IDs for the elements that satisfy the specified criterion
  *
  * @todo Some of the utility methods may be redundant with related methods in WayUtils and TagUtils.
  * Regardless, they should all be moved to other util classes that then call into this class.
@@ -48,6 +48,7 @@ public:
 
   ElementIdsVisitor(const ElementType& elementType);
   ElementIdsVisitor(const ElementType& elementType, ElementCriterion* pCrit);
+  virtual ~ElementIdsVisitor() = default;
 
   void visit(const std::shared_ptr<const Element>& e) override;