Mark LaplaceOperator::apply_add as override

diff --git a/include/deal.II/matrix_free/operators.h b/include/deal.II/matrix_free/operators.h
index 86994872dfbe9ec8423ae703ab7c364e137cb9ed..46a58e4c01c6aec1b8d727e31699140a805e78a3 100644 (file)
--- a/include/deal.II/matrix_free/operators.h
+++ b/include/deal.II/matrix_free/operators.h
@@ -918,7 +918,7 @@ namespace MatrixFreeOperators
      * using initialize_dof_vector().
      */
     virtual void
-    apply_add(VectorType &dst, const VectorType &src) const;
+    apply_add(VectorType &dst, const VectorType &src) const override;
 
     /**
      * Applies the Laplace operator on a cell.