fix

diff --git a/include/deal.II/base/tensor.h b/include/deal.II/base/tensor.h
index 4b2f5f2fab02c5f6972cd6a805766bb268f80500..fb9526d226c8161e1dfc32489322d95b504dcfe8 100644 (file)
--- a/include/deal.II/base/tensor.h
+++ b/include/deal.II/base/tensor.h
@@ -1930,7 +1930,7 @@ DEAL_II_CONSTEXPR inline DEAL_II_ALWAYS_INLINE
   typename Tensor<rank_1 + rank_2 - 2,
                   dim,
                   typename ProductType<Number, OtherNumber>::type>::tensor_type
-    result;
+    result{};
 
   TensorAccessors::internal::
     ReorderedIndexView<0, rank_2, const Tensor<rank_2, dim, OtherNumber>>
@@ -2005,7 +2005,7 @@ DEAL_II_CONSTEXPR inline DEAL_II_ALWAYS_INLINE
   typename Tensor<rank_1 + rank_2 - 2,
                   dim,
                   typename ProductType<Number, OtherNumber>::type>::tensor_type
-    result;
+    result{};
   TensorAccessors::contract<1, rank_1, rank_2, dim>(result, reord_01, reord_02);
   return result;
 }
@@ -2113,7 +2113,7 @@ DEAL_II_CONSTEXPR inline
   typename Tensor<rank_1 + rank_2 - 4,
                   dim,
                   typename ProductType<Number, OtherNumber>::type>::tensor_type
-    result;
+    result{};
   TensorAccessors::contract<2, rank_1, rank_2, dim>(result, reord_3, reord_4);
   return result;
 }
@@ -2138,7 +2138,7 @@ DEAL_II_CONSTEXPR inline DEAL_II_ALWAYS_INLINE
   scalar_product(const Tensor<rank, dim, Number> &     left,
                  const Tensor<rank, dim, OtherNumber> &right)
 {
-  typename ProductType<Number, OtherNumber>::type result;
+  typename ProductType<Number, OtherNumber>::type result{};
   TensorAccessors::contract<rank, rank, rank, dim>(result, left, right);
   return result;
 }
@@ -2209,7 +2209,7 @@ DEAL_II_CONSTEXPR inline DEAL_II_ALWAYS_INLINE
   typename Tensor<rank_1 + rank_2,
                   dim,
                   typename ProductType<Number, OtherNumber>::type>::tensor_type
-    result;
+    result{};
   TensorAccessors::contract<0, rank_1, rank_2, dim>(result, src1, src2);
   return result;
 }