Avoid warning in mpi/attach_data_02

diff --git a/tests/mpi/attach_data_02.cc b/tests/mpi/attach_data_02.cc
index 55902e4a9ec77028923f1e1f31415ecbb9b28686..0c6c4f4fb8789bd229a6a8dedcf65f78b3079f4d 100644 (file)
--- a/tests/mpi/attach_data_02.cc
+++ b/tests/mpi/attach_data_02.cc
@@ -41,7 +41,7 @@ pack_function(
   const typename parallel::distributed::Triangulation<dim, dim>::CellStatus
     status)
 {
-  static int                some_number = 1;
+  static unsigned int       some_number = 1;
   std::vector<unsigned int> some_vector(some_number);
   for (unsigned int i = 0; i < some_number; ++i)
     some_vector[i] = i;