lib/quarry/src/data_set/features/nominal_feature.h in thera-0.0.7 vs lib/quarry/src/data_set/features/nominal_feature.h in thera-0.0.8

@@ -12,9 +12,11 @@
   class NominalFeature : public Feature {
   public:
     NominalFeature(string name, int index) : Feature(name, index), names(1, "") {}
     NominalFeature(NominalFeature *other) : Feature(other->name, other->index), indexes(other->indexes), names(other->names) {}
     
+    ~NominalFeature() {}
+    
     NominalFeature *clone() {
       return new NominalFeature(this);
     }
     
     void reset() {