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diff base/classes.lisp @ 248:e5ff7d53f084

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Add :initform nil to linked-event composition slot.
author Jamie Forth <j.forth@gold.ac.uk>
date Thu, 24 Feb 2011 11:23:18 +0000
parents 25b6b52eb770
children
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--- a/base/classes.lisp	Thu Feb 24 11:23:18 2011 +0000
+++ b/base/classes.lisp	Thu Feb 24 11:23:18 2011 +0000
@@ -84,7 +84,8 @@
 (defclass linked-event (amuse-object)
   ((composition :reader composition
 		:writer %set-composition
-		:initarg :composition))
+		:initarg :composition
+		:initform nil))
   (:documentation "This provides a composition slot for events. The
   generic function initialize-instance can be specialized on an
   implementation composition to assign the event slots when a