Add an explict cast.

git-svn-id: https://svn.dealii.org/trunk@25400 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/deal.II/source/grid/grid_tools.cc b/deal.II/source/grid/grid_tools.cc
index 5d39c1f1f7e00a3ae9b50acc08aa9065d52a12b0..8c6cea3de26ade3ae70fb1622945ea6643ba7267 100644 (file)
--- a/deal.II/source/grid/grid_tools.cc
+++ b/deal.II/source/grid/grid_tools.cc
@@ -1954,7 +1954,7 @@ namespace GridTools
                     }
 
                   c_data.vertices[j] = map_vert_index[v_index];
-                  c_data.material_id = face->boundary_indicator();
+                  c_data.material_id = static_cast<types::material_id_t>(face->boundary_indicator());
                 }
 
               cells.push_back(c_data);