make IndexSet Epetra_Map constr explicit

The new constructor IndexSet(const Epetra_Map &map) was not marked explicit
and caused ambiguous type conversions.

diff --git a/include/deal.II/base/index_set.h b/include/deal.II/base/index_set.h
index 10a260d377b181f399abcbe44a02b6fd520fda30..6a49bda91bc914c14ef2a2634b579ea644b995a0 100644 (file)
--- a/include/deal.II/base/index_set.h
+++ b/include/deal.II/base/index_set.h
@@ -93,7 +93,7 @@ public:
   /**
    * Constructor from a trilinos Epetra_Map.
    */
-  IndexSet(const Epetra_Map &map);
+  explicit IndexSet(const Epetra_Map &map);
 #endif
 
   /**