even if useless, let's initialize these to avoid upsetting valgrind.

diff --git a/src/smpi/mpi/smpi_datatype.cpp b/src/smpi/mpi/smpi_datatype.cpp
index 5547458..df3e3d0 100644 (file)
--- a/src/smpi/mpi/smpi_datatype.cpp
+++ b/src/smpi/mpi/smpi_datatype.cpp
@@ -309,6 +309,9 @@ int Datatype::get_envelope (int* num_integers, int* num_addresses,
                             int* num_datatypes, int* combiner)
 {
   if(contents_==nullptr){
+    *num_integers = 0;
+    *num_addresses = 0;
+    *num_datatypes = 0;
     *combiner = MPI_COMBINER_NAMED;
   }else{
     *num_integers = contents_->number_of_integers_;