Store underlying Mapping

diff --git a/include/deal.II/matrix_free/mapping_info.h b/include/deal.II/matrix_free/mapping_info.h
index 3adf9780063b5c9ef4b33006f9415de4e1fc8baf..5a0c8bc64be404d90c0ab48280a12aac4dc1265e 100644 (file)
--- a/include/deal.II/matrix_free/mapping_info.h
+++ b/include/deal.II/matrix_free/mapping_info.h
@@ -385,6 +385,11 @@ namespace internal
       std::vector<MappingInfoStorage<dim - 1, dim, Number, VectorizedArrayType>>
         face_data_by_cells;
 
+      /**
+       * The pointer to the underlying Mapping object.
+       */
+      SmartPointer<const Mapping<dim>> mapping;
+
       /**
        * Computes the information in the given cells, called within
        * initialize.

diff --git a/include/deal.II/matrix_free/mapping_info.templates.h b/include/deal.II/matrix_free/mapping_info.templates.h
index 6e8d4fb7ec48f3023cb5ddd0bb7fb9911ed3a657..d7d21323a4b212eb0f44987432c3baecd1cb7787 100644 (file)
--- a/include/deal.II/matrix_free/mapping_info.templates.h
+++ b/include/deal.II/matrix_free/mapping_info.templates.h
@@ -283,6 +283,7 @@ namespace internal
       const UpdateFlags update_flags_faces_by_cells)
     {
       clear();
+      this->mapping = &mapping;
 
       // Could call these functions in parallel, but not useful because the
       // work inside is nicely split up already