Fix issue with Cell::get_contained_cells() utility function (#2873)

openmc-dev · Feb 15, 2024 · 33c910d · 33c910d
1 parent bf33a9e
commit 33c910d
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/cell.cpp b/src/cell.cpp
@@ -1272,6 +1272,9 @@ struct ParentCellStack {
   //! compute an instance for the provided distribcell index
   int32_t compute_instance(int32_t distribcell_index) const
   {
+    if (distribcell_index == C_NONE)
+      return 0;
+
     int32_t instance = 0;
     for (const auto& parent_cell : this->parent_cells_) {
       auto& cell = model::cells[parent_cell.cell_index];