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

@@ -15,9 +15,10 @@
     int     get_index()                 { return index; }
     void    set_name(string new_name)   { name = new_name; }
     void    set_index(int new_index)    { index = new_index; }
     
     Feature(string name, int index) : name(name), index(index) {}
+    virtual ~Feature() {}
     virtual Feature *clone() { return NULL; }
     virtual void reset() {}
     virtual void print() {}
 
     // counting