From 057ace774cc1dae84b0e4a7c0c5d1725e12331a7 Mon Sep 17 00:00:00 2001
From: Rene Gassmoeller <rene.gassmoeller@mailbox.org>
Date: Mon, 4 Nov 2024 10:51:53 +0100
Subject: [PATCH] Fix tensor conversion

---
 include/deal.II/base/tensor.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/deal.II/base/tensor.h b/include/deal.II/base/tensor.h
index b7f2c0e530..f3888740ce 100644
--- a/include/deal.II/base/tensor.h
+++ b/include/deal.II/base/tensor.h
@@ -1426,7 +1426,7 @@ constexpr DEAL_II_ALWAYS_INLINE Tensor<rank_, dim, Number>::
 operator Tensor<1, dim, Tensor<rank_ - 1, dim, OtherNumber>>() const
 {
   Tensor<1, dim, Tensor<rank_ - 1, dim, OtherNumber>> x;
-  std::copy(values.begin(), values.end(), x.values.begin());
+  std::copy(values.data(), values.data() + values.size(), x.values.data());
   return x;
 }
 
-- 
2.39.5