Fix warning regarding unused variables

diff --git a/include/deal.II/matrix_free/tensor_product_kernels.h b/include/deal.II/matrix_free/tensor_product_kernels.h
index 10971a272fd59c36d5dcee163eeba90b843cb598..88b0a8b2d5197d2377d603f959c4e032dd44c8a2 100644 (file)
--- a/include/deal.II/matrix_free/tensor_product_kernels.h
+++ b/include/deal.II/matrix_free/tensor_product_kernels.h
@@ -2007,6 +2007,8 @@ namespace internal
       : shape_values(shape_values.begin())
       , shape_gradients(nullptr)
       , shape_hessians(nullptr)
+      , n_rows(n_rows)
+      , n_columns(n_columns)
     {
       AssertDimension(shape_values.size(), n_rows * ((n_columns + 1) / 2));
     }