constness fixes, round-trip and fuzz-testing for CHOICE
diff --git a/skeletons/NativeReal.h b/skeletons/NativeReal.h
index c3e9e2d..b6d16d6 100644
--- a/skeletons/NativeReal.h
+++ b/skeletons/NativeReal.h
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2004 Lev Walkin <vlm@lionet.info>. All rights reserved.
+ * Copyright (c) 2004-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
  * Redistribution and modifications are permitted subject to BSD license.
  */
 /*