v0.2.55..v0.2.56 changeset NetworkDetails.h

diff --git a/hoot-core/src/main/cpp/hoot/core/conflate/network/NetworkDetails.h b/hoot-core/src/main/cpp/hoot/core/conflate/network/NetworkDetails.h
index 0a68c6a..4d90ef3 100644
--- a/hoot-core/src/main/cpp/hoot/core/conflate/network/NetworkDetails.h
+++ b/hoot-core/src/main/cpp/hoot/core/conflate/network/NetworkDetails.h
@@ -22,7 +22,7 @@
  * This will properly maintain the copyright information. DigitalGlobe
  * copyrights will be updated automatically.
  *
- * @copyright Copyright (C) 2015, 2016, 2017, 2018, 2019 DigitalGlobe (http://www.digitalglobe.com/)
+ * @copyright Copyright (C) 2015, 2016, 2017, 2018, 2019, 2020 DigitalGlobe (http://www.digitalglobe.com/)
  */
 #ifndef NETWORKDETAILS_H
 #define NETWORKDETAILS_H
@@ -58,9 +58,8 @@ public:
 
   static std::string className() { return "hoot::NetworkDetails"; }
 
-  static int logWarnCount;
-
   NetworkDetails(ConstOsmMapPtr map, ConstOsmNetworkPtr n1, ConstOsmNetworkPtr n2);
+  virtual ~NetworkDetails() = default;
 
   Meters calculateDistance(ConstEdgeLocationPtr el) const;
   /**
@@ -188,6 +187,8 @@ public:
 
 private:
 
+  static int logWarnCount;
+
   std::shared_ptr<HighwayClassifier> _classifier;
   ConstOsmMapPtr _map;
   ConstOsmNetworkPtr _n1, _n2;