Use (const) references with range-based for loops.

[simgrid.git] / src / smpi / mpi / smpi_group.cpp

diff --git a/src/smpi/mpi/smpi_group.cpp b/src/smpi/mpi/smpi_group.cpp
index 2320768..580d0d6 100644 (file)
--- a/src/smpi/mpi/smpi_group.cpp
+++ b/src/smpi/mpi/smpi_group.cpp
@@ -39,7 +39,7 @@ Group::Group(MPI_Group origin)
       rank_to_index_map_[i] = origin->rank_to_index_map_[i];
     }
 
-    for (auto elm : origin->index_to_rank_map_) {
+    for (auto const& elm : origin->index_to_rank_map_) {
       index_to_rank_map_.insert({elm.first, elm.second});
     }
   }