v0.2.55..v0.2.56 changeset ConstrainedMatches.h

diff --git a/hoot-core/src/main/cpp/hoot/core/conflate/matching/ConstrainedMatches.h b/hoot-core/src/main/cpp/hoot/core/conflate/matching/ConstrainedMatches.h
index e9a75a5..7f9c119 100644
--- a/hoot-core/src/main/cpp/hoot/core/conflate/matching/ConstrainedMatches.h
+++ b/hoot-core/src/main/cpp/hoot/core/conflate/matching/ConstrainedMatches.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 CONSTRAINEDMATCHES_H
 #define CONSTRAINEDMATCHES_H
@@ -59,6 +59,7 @@ public:
   static double EPSILON;
 
   ConstrainedMatches(const ConstOsmMapPtr& map);
+  virtual ~ConstrainedMatches() = default;
 
   /**
    * Add matches to the list of matches to consider.