From f6bfc6916221194e9131d368c40d29ee5cc7d43f Mon Sep 17 00:00:00 2001
From: Maxime Gimeno <maxime.gimeno@gmail.com>
Date: Wed, 1 Jul 2020 15:37:00 +0200
Subject: [PATCH] add missing reserve() using interanl helpers

---
 .../CGAL/Polygon_mesh_processing/connected_components.h        | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/connected_components.h b/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/connected_components.h
index b98a70c63c5..3d8b9282b9e 100644
--- a/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/connected_components.h
+++ b/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/connected_components.h
@@ -30,6 +30,7 @@
 #include <CGAL/boost/graph/helpers.h>
 #include <CGAL/boost/graph/Face_filtered_graph.h>
 #include <CGAL/boost/graph/copy_face_graph.h>
+#include <CGAL/Container_helper.h>
 
 #include <CGAL/assertions.h>
 #include <CGAL/tuple.h>
@@ -973,7 +974,7 @@ void split_connected_components_impl(FIMap fim,
     }
     nb_patches+=1;
   }
-
+  CGAL::internal::reserve(range, nb_patches);
   for(faces_size_type i=0; i<nb_patches; ++i)
   {
     CGAL::Face_filtered_graph<PolygonMesh, FIMap, VIMap, HIMap>