From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Thu, 30 Jan 2020 16:59:48 +0000 (-0700)
Subject: Leave a comment.
X-Git-Tag: v9.2.0-rc1~590^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=da1d017033cc2eda6f6695f0c210cc994d7d6a76;p=dealii.git

Leave a comment.
---

diff --git a/include/deal.II/matrix_free/matrix_free.templates.h b/include/deal.II/matrix_free/matrix_free.templates.h
index 04a41b45c9..674a27a9bc 100644
--- a/include/deal.II/matrix_free/matrix_free.templates.h
+++ b/include/deal.II/matrix_free/matrix_free.templates.h
@@ -1795,6 +1795,10 @@ MatrixFree<dim, Number, VectorizedArrayType>::initialize_indices(
                            const bool         ext,
                            const bool         flag) {
                     (void)v;
+                    // The following statement could be simplified
+                    // using AssertIndexRange, but that leads to an
+                    // internal compiler error with GCC 7.4. Do things
+                    // by hand instead.
                     Assert(
                       face_info.faces[f].cells_interior[v] <
                         n_macro_cells_before *