X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fcontainer.h;h=d1120cd8c36bb1e25fb845f6a20831cc264c057c;hb=e5f9004b672b038e43cf2b20c3fc9327f2b55ffd;hp=e41baab671de003911ca2980ad0febea816aa25d;hpb=9bfda3958f5b610c4513a912f4cd07d703d3d184;p=libs%2Fgltk.git

diff --git a/source/container.h b/source/container.h
index e41baab..d1120cd 100644
--- a/source/container.h
+++ b/source/container.h
@@ -1,20 +1,22 @@
-/* $Id$
-
-This file is part of libmspgltk
-Copyright © 2009-2011  Mikko Rasa, Mikkosoft Productions
-Distributed under the LGPL
-*/
-
 #ifndef MSP_GLTK_CONTAINER_H_
 #define MSP_GLTK_CONTAINER_H_
 
 #include <list>
+#include <stdexcept>
 #include <sigc++/trackable.h>
 #include "widget.h"
 
 namespace Msp {
 namespace GLtk {
 
+class hierarchy_error: public std::logic_error
+{
+public:
+	hierarchy_error(const std::string &);
+	virtual ~hierarchy_error() throw() { }
+};
+
+
 class Container: virtual public Widget
 {
 protected: