Merge remote-tracking branch 'origin/tizen' into devel/new_mesh

[platform/core/uifw/dali-core.git] / dali / public-api / signals / callback.h

diff --git a/dali/public-api/signals/callback.h b/dali/public-api/signals/callback.h
index ca266de..ed70539 100644 (file)
--- a/dali/public-api/signals/callback.h
+++ b/dali/public-api/signals/callback.h
@@ -2,7 +2,7 @@
 #define __DALI_CALLBACK_H__
 
 /*
- * Copyright (c) 2014 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2015 Samsung Electronics Co., Ltd.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -18,6 +18,9 @@
  *
  */
 
+// EXTERNAL INCLUDES
+#include <cstddef>
+
 // INTERNAL INCLUDES
 #include <dali/public-api/common/dali-common.h>
 #include <dali/public-api/signals/functor-delegate.h>
@@ -71,6 +74,10 @@ public:
     {
       (*(callback.mFunction))();
     }
+    else
+    {
+      DALI_ASSERT_ALWAYS( 0 && "no function to execute" );
+    }
   }
 
   /**