Closes #889

diff --git a/include/deal.II/lac/dynamic_sparsity_pattern.h b/include/deal.II/lac/dynamic_sparsity_pattern.h
index 3877c6215fcbfe4999ce106d73bd4160a26a233b..97eab72ba2f78d795d8a4025b4db5269869b1d31 100644 (file)
--- a/include/deal.II/lac/dynamic_sparsity_pattern.h
+++ b/include/deal.II/lac/dynamic_sparsity_pattern.h
@@ -739,7 +739,9 @@ namespace DynamicSparsityPatternIterators
   {
     return (sparsity_pattern == other.sparsity_pattern &&
             current_row == other.current_row &&
-            current_entry == other.current_entry);
+            ((current_entry == other.current_entry)
+             ||
+             (current_row == numbers::invalid_unsigned_int)));
   }