Make an assertion more informative.

The corresponding DoFAccessor already has that same text.

diff --git a/include/deal.II/grid/tria_accessor.templates.h b/include/deal.II/grid/tria_accessor.templates.h
index e3a5a0061d1ebaccb9acd2968c14d67b9babc909..cd8f4d0ac107ba4e1f3f39669af5ad3133a8f04f 100644 (file)
--- a/include/deal.II/grid/tria_accessor.templates.h
+++ b/include/deal.II/grid/tria_accessor.templates.h
@@ -2899,7 +2899,10 @@ inline TriaAccessor<0, 1, spacedim>::TriaAccessor(
   // accessor
   (void)level;
   (void)index;
-  Assert((level == -2) && (index == -2), ExcInternalError());
+  Assert((level == -2) && (index == -2),
+         ExcMessage(
+           "This constructor can not be called for face iterators in 1d, "
+           "except to default-construct iterator objects."));
 }