From 174a1d68e0a373a3a85d1636f15b74d41608f39e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Loriot?= <sebastien.loriot@cgal.org>
Date: Mon, 10 Jun 2024 15:07:25 +0200
Subject: [PATCH] avoid potentially infinite loop

---
 .../internal/Corefinement/Face_graph_output_builder.h         | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/internal/Corefinement/Face_graph_output_builder.h b/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/internal/Corefinement/Face_graph_output_builder.h
index dd8f2eb307e..5664e2db18e 100644
--- a/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/internal/Corefinement/Face_graph_output_builder.h
+++ b/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/internal/Corefinement/Face_graph_output_builder.h
@@ -276,11 +276,11 @@ struct Non_manifold_output_visitor
 
     if (vid_not_used.any()){
       std::vector<ID> free_vids;
-      for (ID i = vid_not_used.find_first();
+      for (auto i = vid_not_used.find_first();
                        i < vid_not_used.npos;
                        i = vid_not_used.find_next(i))
       {
-        free_vids.push_back(i);
+        free_vids.push_back(static_cast<ID>(i));
       }
       // now reindex the vertices
       for (auto& p : vid1)