comparison base/Event.h @ 1630:73bda079567a single-point

Add operator!=

         if (m_label != p.m_label) return false;
         
         return true;
     }
 
+    bool operator!=(const Event &p) const {
+        return !operator==(p);
+    }
+
     bool operator<(const Event &p) const {
 
         if (m_frame != p.m_frame) {
             return m_frame < p.m_frame;
         }