Add a link to step-38.

git-svn-id: https://svn.dealii.org/trunk@23026 0785d39b-7218-0410-832d-ea1e28bc413d

diff --git a/deal.II/include/deal.II/grid/grid_tools.h b/deal.II/include/deal.II/grid/grid_tools.h
index 9b403716abee294ce5fb0535cd26a5abce47941e..ed37653841b46e1c38fa59a210c47c6775fdb3ab 100644 (file)
--- a/deal.II/include/deal.II/grid/grid_tools.h
+++ b/deal.II/include/deal.II/grid/grid_tools.h
@@ -190,6 +190,10 @@ class GridTools
                                      * either case, argument and
                                      * return value have to be of
                                      * type <tt>Point<dim></tt>.
+                                     *
+                                     * This function is used in the
+                                     * "Possibilities for extensions" section
+                                     * of step-38.
                                      */
     template <int dim, typename Predicate, int spacedim>
     static