v0.2.55..v0.2.56 changeset LengthScoreExtractor.h

diff --git a/hoot-core/src/main/cpp/hoot/core/algorithms/extractors/LengthScoreExtractor.h b/hoot-core/src/main/cpp/hoot/core/algorithms/extractors/LengthScoreExtractor.h
index 5c29ca3..8712a44 100644
--- a/hoot-core/src/main/cpp/hoot/core/algorithms/extractors/LengthScoreExtractor.h
+++ b/hoot-core/src/main/cpp/hoot/core/algorithms/extractors/LengthScoreExtractor.h
@@ -22,7 +22,7 @@
  * This will properly maintain the copyright information. DigitalGlobe
  * copyrights will be updated automatically.
  *
- * @copyright Copyright (C) 2015, 2017, 2018, 2019 DigitalGlobe (http://www.digitalglobe.com/)
+ * @copyright Copyright (C) 2015, 2017, 2018, 2019, 2020 DigitalGlobe (http://www.digitalglobe.com/)
  */
 #ifndef LENGTHSCOREEXTRACTOR_H
 #define LENGTHSCOREEXTRACTOR_H
@@ -43,7 +43,8 @@ public:
 
   LengthScoreExtractor(ValueAggregatorPtr wayAgg);
 
-  LengthScoreExtractor();
+  LengthScoreExtractor() = default;
+  virtual ~LengthScoreExtractor() = default;
 
   virtual std::string getClassName() const override { return className(); }