From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Sun, 31 Oct 2021 19:30:35 +0000 (-0600)
Subject: Fix a test.
X-Git-Tag: v9.4.0-rc1~873^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F12901%2Fhead;p=dealii.git

Fix a test.
---

diff --git a/tests/mpi/data_out_hdf5_02.cc b/tests/mpi/data_out_hdf5_02.cc
index e0126fd1d8..5586a4be17 100644
--- a/tests/mpi/data_out_hdf5_02.cc
+++ b/tests/mpi/data_out_hdf5_02.cc
@@ -40,7 +40,23 @@ create_patches(std::vector<DataOutBase::Patch<dim, spacedim>> &patches)
       const unsigned int nsub  = p + 1;
       const unsigned int nsubp = nsub + 1;
 
-      patch.n_subdivisions = nsub;
+#ifdef DEAL_II_HAVE_CXX17
+      if constexpr (dim > 0)
+        patch.n_subdivisions = nsub;
+#else
+      if (dim > 0)
+        const_cast<unsigned int &>(patch.n_subdivisions) = nsub;
+#endif
+
+#ifdef DEAL_II_HAVE_CXX17
+      if constexpr (dim > 0)
+        patch.reference_cell = ReferenceCells::get_hypercube<dim>();
+#else
+      if (dim > 0)
+        const_cast<ReferenceCell &>(patch.reference_cell) =
+          ReferenceCells::get_hypercube<dim>();
+#endif
+
       for (const unsigned int v : GeometryInfo<dim>::vertex_indices())
         for (unsigned int d = 0; d < spacedim; ++d)
           patch.vertices[v](d) =