Make some variables 'unsigned'.

diff --git a/source/grid/tria.cc b/source/grid/tria.cc
index 87623aa531d4705a5b6a5827ab3546c15ee4ff05..f42b5425fe4bcaee48fcff1aaa5e1c22dbac1834 100644 (file)
--- a/source/grid/tria.cc
+++ b/source/grid/tria.cc
@@ -683,8 +683,10 @@ namespace internal
     // DataOutInterface::write_vtu_in_parallel.
     // TODO: Write general MPIIO interface.
 
-    const int myrank  = Utilities::MPI::this_mpi_process(mpi_communicator);
-    const int mpisize = Utilities::MPI::n_mpi_processes(mpi_communicator);
+    const unsigned int myrank =
+      Utilities::MPI::this_mpi_process(mpi_communicator);
+    const unsigned int mpisize =
+      Utilities::MPI::n_mpi_processes(mpi_communicator);
 
     if (mpisize > 1)
       {
@@ -921,7 +923,8 @@ namespace internal
     // DataOutInterface::write_vtu_in_parallel.
     // TODO: Write general MPIIO interface.
 
-    const int mpisize = Utilities::MPI::n_mpi_processes(mpi_communicator);
+    const unsigned int mpisize =
+      Utilities::MPI::n_mpi_processes(mpi_communicator);
 
     if (mpisize > 1)
       {