From 72624bb0f10bf269ed9e88d0c296bf3b23bcb196 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Loriot?= <sebastien.loriot@cgal.org>
Date: Wed, 26 Apr 2023 09:55:14 +0200
Subject: [PATCH] fix narrowing

---
 Cartesian_kernel/include/CGAL/Cartesian/Vector_3.h | 2 +-
 STL_Extension/include/CGAL/array.h                 | 9 +++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/Cartesian_kernel/include/CGAL/Cartesian/Vector_3.h b/Cartesian_kernel/include/CGAL/Cartesian/Vector_3.h
index 9d9d1bfdb6f..00c23440cbe 100644
--- a/Cartesian_kernel/include/CGAL/Cartesian/Vector_3.h
+++ b/Cartesian_kernel/include/CGAL/Cartesian/Vector_3.h
@@ -69,7 +69,7 @@ public:
 
   template <class T1, class T2, class T3>
   VectorC3(T1 &&x, T2 &&y, T3 &&z)
-    : base(Rep{std::forward<T1>(x), std::forward<T2>(y), std::forward<T3>(z)}) {}
+    : base(fwd_make_array<FT_>(std::forward<T1>(x), std::forward<T2>(y), std::forward<T3>(z))) {}
 
   VectorC3(const FT_ &x, const FT_ &y, const FT_ &z, const FT_ &w)
     : base( w != FT_(1) ? CGAL::make_array<FT_>(x/w, y/w, z/w)
diff --git a/STL_Extension/include/CGAL/array.h b/STL_Extension/include/CGAL/array.h
index ff234183f99..56fa985bdf7 100644
--- a/STL_Extension/include/CGAL/array.h
+++ b/STL_Extension/include/CGAL/array.h
@@ -54,6 +54,15 @@ make_array(const T & t, const Args & ... args)
   return a;
 }
 
+template< typename T, typename... Args >
+BOOST_CXX14_CONSTEXPR
+std::array< T, sizeof...(Args) >
+fwd_make_array(Args && ... args)
+{
+  std::array< T, sizeof...(Args) > a = { { static_cast<T>(args)... } };
+  return a;
+}
+
 
 // Functor version
 struct Construct_array