Corrected memory issue using Scott Meyer's "swap trick" to trim excess capacity

Point_set_processing_3/examples/Point_set_processing_3/remove_outliers_example.cpp

@@ -29,6 +29,9 @@ int main(void)
                                      removed_percentage),
                points.end());
                
+  // Optional: Scott Meyer's "swap trick" to trim excess capacity
+  std::vector<Point>(points).swap(points);
+
   return EXIT_SUCCESS;
 }
 

Point_set_processing_3/test/Point_set_processing_3/remove_outliers_test.cpp

@@ -63,6 +63,10 @@ void test_avg_knn_sq_distance(std::deque<Point>& points, // input point set
                                      removed_percentage),
                                      points.end());
   
+  // Optional: Scott Meyer's "swap trick" to trim excess capacity
+  std::deque<Point>(points).swap(points);
+
+
   long memory = CGAL::Memory_sizer().virtual_size();
   std::cerr << "ok: " << task_timer.time() << " seconds, "
                         << (memory>>20) << " Mb allocated"