X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/86ad7bacaf8c0b206a62bf87193ca6800006a854..c897fb0d193bbe081581d7ea7f579f04df1b5b5d:/src/smpi/mpi/smpi_group.cpp

diff --git a/src/smpi/mpi/smpi_group.cpp b/src/smpi/mpi/smpi_group.cpp
index 89abd06941..bce418b066 100644
--- a/src/smpi/mpi/smpi_group.cpp
+++ b/src/smpi/mpi/smpi_group.cpp
@@ -73,10 +73,11 @@ int Group::rank(int index)
 {
   if (this == MPI_GROUP_EMPTY)
     return MPI_UNDEFINED;
-  if (index_to_rank_map_.find(index) == index_to_rank_map_.end())
-    return MPI_UNDEFINED;
-  else
+  try {
     return index_to_rank_map_.at(index);
+  } catch (std::out_of_range& unfound) {
+    return MPI_UNDEFINED;
+  }
 }
 
 void Group::ref()