From: Timo Heister <timo.heister@gmail.com>
Date: Sun, 21 Jul 2013 23:47:29 +0000 (+0000)
Subject: revert to iterating back-wards which was changed in r30061 and broke a couple of... 
X-Git-Tag: v8.0.0~40
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8fd868d546831275d88d2493fa047956059555d8;p=dealii.git

revert to iterating back-wards which was changed in r30061 and broke a couple of tests (I don't understand why exactly though)

git-svn-id: https://svn.dealii.org/trunk@30082 0785d39b-7218-0410-832d-ea1e28bc413d
---

diff --git a/deal.II/source/grid/tria.cc b/deal.II/source/grid/tria.cc
index 42aaa7279e..d55a04bedf 100644
--- a/deal.II/source/grid/tria.cc
+++ b/deal.II/source/grid/tria.cc
@@ -12208,9 +12208,9 @@ void Triangulation<dim, spacedim>::execute_coarsening ()
   //
   // since we delete the *children* of cells, we only need to start
   // considering cells on the second highest level, n_levels()-2.
-  for (int level = n_levels()-2; level>=0; --level)
-    for (cell = begin(level); cell!=end(level); ++cell)
-      if (cell->user_flag_set())
+  if (levels.size() >= 2)
+    for (cell = last(); cell!=endc; --cell)
+      if (cell->user_flag_set() && cell->level()<=static_cast<int>(levels.size()-2))
         // use a separate function,
         // since this is dimension
         // specific