Pass large objects by reference to const (Sonar).

[simgrid.git] / src / mc / explo / udpor / maximal_subsets_iterator.cpp

diff --git a/src/mc/explo/udpor/maximal_subsets_iterator.cpp b/src/mc/explo/udpor/maximal_subsets_iterator.cpp
index 3aa7047..6c2dee3 100644 (file)
--- a/src/mc/explo/udpor/maximal_subsets_iterator.cpp
+++ b/src/mc/explo/udpor/maximal_subsets_iterator.cpp
@@ -6,11 +6,12 @@
 
 namespace simgrid::mc::udpor {
 
-maximal_subsets_iterator::maximal_subsets_iterator(const EventSet& events, std::optional<node_filter_function> filter,
+maximal_subsets_iterator::maximal_subsets_iterator(const EventSet& events,
+                                                   const std::optional<node_filter_function>& filter,
                                                    std::optional<size_t> maximum_subset_size)
     : maximum_subset_size(maximum_subset_size), current_maximal_set({EventSet()})
 {
-  const auto candidate_ordering = events.get_topological_ordering_of_reverse_graph();
+  auto candidate_ordering = events.get_topological_ordering_of_reverse_graph();
   if (filter.has_value()) {
     // Only store the events in the ordering that "matter" to us
     std::copy_if(std::move_iterator(candidate_ordering.begin()), std::move_iterator(candidate_ordering.end()),