# HG changeset patch
# User Jamie Forth <j.forth@gold.ac.uk>
# Date 1298546598 0
# Node ID e5ff7d53f08456f094df73ebf14b22afacbb64e9
# Parent  2b31a375701bac834e6086bccfc1a0e7ec44077b
Add :initform nil to linked-event composition slot.

diff -r 2b31a375701b -r e5ff7d53f084 base/classes.lisp
--- 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