From: Marc Fehling <mafehling.git@gmail.com>
Date: Thu, 31 Aug 2023 00:31:11 +0000 (-0600)
Subject: Added one assertion to setup_line_to_cell.
X-Git-Tag: relicensing~536^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F15947%2Fhead;p=dealii.git

Added one assertion to setup_line_to_cell.
---

diff --git a/include/deal.II/matrix_free/hanging_nodes_internal.h b/include/deal.II/matrix_free/hanging_nodes_internal.h
index cc770bc39c..03b6596820 100644
--- a/include/deal.II/matrix_free/hanging_nodes_internal.h
+++ b/include/deal.II/matrix_free/hanging_nodes_internal.h
@@ -474,6 +474,8 @@ namespace internal
                   const unsigned int child_line_idx =
                     child->line_index(neighbor_line);
 
+                  Assert(child->is_active(), ExcInternalError());
+
                   // Now add all active cells
                   for (const auto &cl : line_to_cells[line_idx])
                     line_to_cells[child_line_idx].push_back(cl);