Avoid a warning.

diff --git a/source/lac/trilinos_tpetra_sparsity_pattern.cc b/source/lac/trilinos_tpetra_sparsity_pattern.cc
index 84732f9fe923f5b1a08faa42a4695311e65d3561..b7c3dcc8f2eedefffacd5ff06da4c5b7ba7bb8b3 100644 (file)
--- a/source/lac/trilinos_tpetra_sparsity_pattern.cc
+++ b/source/lac/trilinos_tpetra_sparsity_pattern.cc
@@ -1031,8 +1031,8 @@ namespace LinearAlgebra
     SparsityPattern<MemorySpace>::print_gnuplot(std::ostream &out) const
     {
       Assert(graph->isFillComplete() == true, ExcInternalError());
-      for (dealii::types::signed_global_dof_index row = 0; row < local_size();
-           ++row)
+
+      for (unsigned int row = 0; row < local_size(); ++row)
         {
 #  if DEAL_II_TRILINOS_VERSION_GTE(13, 2, 0)
           typename GraphType::local_inds_host_view_type indices;