From 06288f3f0493b8f2e5cd26ef329b4b22c2b666d5 Mon Sep 17 00:00:00 2001
From: Laurent Rineau <laurent.rineau@cgal.org>
Date: Fri, 5 Jan 2024 16:38:53 +0100
Subject: [PATCH] improve the code reproducibility

---
 STL_Extension/include/CGAL/Base_with_time_stamp.h       | 4 +++-
 Triangulation_3/test/Triangulation_3/cdt_3_from_off.cpp | 2 +-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/STL_Extension/include/CGAL/Base_with_time_stamp.h b/STL_Extension/include/CGAL/Base_with_time_stamp.h
index cbed66de81f..0ef77b262be 100644
--- a/STL_Extension/include/CGAL/Base_with_time_stamp.h
+++ b/STL_Extension/include/CGAL/Base_with_time_stamp.h
@@ -20,7 +20,9 @@ template <typename Base>
 class Base_with_time_stamp : public Base {
   std::size_t time_stamp_ = -1;
 public:
-  typedef CGAL::Tag_true Has_timestamp;
+  using Base::Base;
+
+  using Has_timestamp = CGAL::Tag_true;
 
   std::size_t time_stamp() const {
     return time_stamp_;
diff --git a/Triangulation_3/test/Triangulation_3/cdt_3_from_off.cpp b/Triangulation_3/test/Triangulation_3/cdt_3_from_off.cpp
index f6a5435ec8e..61c2b2a3380 100644
--- a/Triangulation_3/test/Triangulation_3/cdt_3_from_off.cpp
+++ b/Triangulation_3/test/Triangulation_3/cdt_3_from_off.cpp
@@ -45,7 +45,7 @@ using K = CGAL::Exact_predicates_inexact_constructions_kernel;
 #endif // use Epick
 
 using Vb = CGAL::Base_with_time_stamp<CGAL::Constrained_Delaunay_triangulation_vertex_base_3<K>>;
-using Cb = CGAL::Constrained_Delaunay_triangulation_cell_base_3<K>;
+using Cb = CGAL::Base_with_time_stamp<CGAL::Constrained_Delaunay_triangulation_cell_base_3<K>>;
 using Tds = CGAL::Triangulation_data_structure_3<Vb, Cb>;
 using Delaunay = CGAL::Delaunay_triangulation_3<K, Tds>;
 using CDT = CGAL::Constrained_Delaunay_triangulation_3<Delaunay>;