v0.2.55..v0.2.56 changeset IntersectionOverUnionExtractor.h

diff --git a/hoot-core/src/main/cpp/hoot/core/algorithms/extractors/IntersectionOverUnionExtractor.h b/hoot-core/src/main/cpp/hoot/core/algorithms/extractors/IntersectionOverUnionExtractor.h
index 1b9ea4d..7531950 100644
--- a/hoot-core/src/main/cpp/hoot/core/algorithms/extractors/IntersectionOverUnionExtractor.h
+++ b/hoot-core/src/main/cpp/hoot/core/algorithms/extractors/IntersectionOverUnionExtractor.h
@@ -22,7 +22,7 @@
  * This will properly maintain the copyright information. DigitalGlobe
  * copyrights will be updated automatically.
  *
- * @copyright Copyright (C) 2019 DigitalGlobe (http://www.digitalglobe.com/)
+ * @copyright Copyright (C) 2019, 2020 DigitalGlobe (http://www.digitalglobe.com/)
  */
 #ifndef INTERSECTION_OVER_UNION_EXTRACTOR_H
 #define INTERSECTION_OVER_UNION_EXTRACTOR_H
@@ -49,6 +49,9 @@ public:
 
   static std::string className() { return "hoot::IntersectionOverUnionExtractor"; }
 
+  IntersectionOverUnionExtractor() = default;
+  virtual ~IntersectionOverUnionExtractor() = default;
+
   /**
    * @see FeatureExtractor
    */