Keep old signature of getPointCloudDifference as deprecated

Author: ThorstenHarter

segmentation/include/pcl/segmentation/segment_differences.h

@@ -59,6 +59,18 @@ namespace pcl
       const boost::shared_ptr<pcl::search::Search<PointT> > &tree,
       pcl::PointCloud<PointT> &output);
 
+  template <typename PointT>
+  PCL_DEPRECATED("getPointCloudDifference() does not use the tgt parameter, thus it is deprecated and will be removed in future releases.")
+  inline void getPointCloudDifference (
+      const pcl::PointCloud<PointT> &src,
+      const pcl::PointCloud<PointT> &tgt,
+      double threshold,
+      const boost::shared_ptr<pcl::search::Search<PointT> > &tree,
+      pcl::PointCloud<PointT> &output)
+  {
+    getPointCloudDifference<PointT> (src, pcl::PointCloud<PointT>(), threshold, tree, output);
+  }
+
   ////////////////////////////////////////////////////////////////////////////////////////////
   ////////////////////////////////////////////////////////////////////////////////////////////
   ////////////////////////////////////////////////////////////////////////////////////////////