From: heister <heister@0785d39b-7218-0410-832d-ea1e28bc413d>
Date: Wed, 29 Aug 2012 21:27:03 +0000 (+0000)
Subject: return from ConstraintMatrix::close() in case of a cycle so we can test this.
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4f0086398a98bbe426b27ea7916b774f81918267;p=dealii-svn.git

return from ConstraintMatrix::close() in case of a cycle so we can test this.

git-svn-id: https://svn.dealii.org/trunk@26168 0785d39b-7218-0410-832d-ea1e28bc413d
---

diff --git a/deal.II/source/lac/constraint_matrix.cc b/deal.II/source/lac/constraint_matrix.cc
index dd99a2e504..abc67f6225 100644
--- a/deal.II/source/lac/constraint_matrix.cc
+++ b/deal.II/source/lac/constraint_matrix.cc
@@ -386,6 +386,8 @@ void ConstraintMatrix::close ()
                     // there are constraints or dofs in our system, we must have a cycle.
                     ++n_replacements;
                     Assert(n_replacements/2<largest_idx, ExcMessage("Cycle in constraints detected!"));
+                    if (n_replacements/2>=largest_idx)
+                      return; // this enables us to test for this Exception.
 #endif
                   }
                 else