From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Fri, 30 Jun 2017 20:03:44 +0000 (-0600)
Subject: Improve an error message.
X-Git-Tag: v9.0.0-rc1~1459^2~1
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e0f17513bc4e26a886e4a90c6d62a924c910df85;p=dealii.git

Improve an error message.
---

diff --git a/source/fe/fe_values.cc b/source/fe/fe_values.cc
index 1a590ca50b..338c42fac6 100644
--- a/source/fe/fe_values.cc
+++ b/source/fe/fe_values.cc
@@ -3614,7 +3614,10 @@ FEValues<dim,spacedim>::initialize (const UpdateFlags update_flags)
   // codimension one case.
   if (dim != spacedim-1)
     Assert ((update_flags & update_normal_vectors) == false,
-            (typename FEValuesBase<dim,spacedim>::ExcInvalidUpdateFlag()));
+            ExcMessage ("You can only pass the 'update_normal_vectors' "
+                        "flag to FEFaceValues or FESubfaceValues objects "
+                        "unless the triangulation is embedded in a higher "
+                        "dimensional space."));
 
   const UpdateFlags flags = this->compute_update_flags (update_flags);