Fix unsigned int -> int

include/laser/processor/processor_tracker_feature_polyline_2D.h

@@ -105,7 +105,7 @@ class ProcessorTrackerFeaturePolyline2D : public ProcessorTrackerFeature
         /**\brief Process new Features
          *
          */
-        virtual unsigned int processNew(const unsigned int& _max_features);
+        virtual unsigned int processNew(const int& _max_features);
 
         /** \brief Detect new Features
          * \param _max_features maximum number of features detected (-1: unlimited. 0: none)

src/processor/processor_tracker_feature_polyline_2D.cpp

@@ -161,7 +161,7 @@ bool ProcessorTrackerFeaturePolyline2D::voteForKeyFrame()
     return false;
 }
 
-unsigned int ProcessorTrackerFeaturePolyline2D::processNew(const unsigned int& _max_features)
+unsigned int ProcessorTrackerFeaturePolyline2D::processNew(const int& _max_features)
 {
     WOLF_DEBUG("PTFP ", getName(), "::processNew: ");
     unsigned int n = ProcessorTrackerFeature::processNew(_max_features);