#ifndef SCM_WEAKS_H
#define SCM_WEAKS_H
-/* Copyright (C) 1995,1996,2000,2001, 2003, 2006, 2008, 2009 Free Software Foundation, Inc.
+/* Copyright (C) 1995,1996,2000,2001, 2003, 2006, 2008, 2009, 2011 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
/* Testing the weak component(s) of a cell for reachability. */
#define SCM_WEAK_PAIR_WORD_DELETED_P(_cell, _word) \
- (SCM_CELL_OBJECT ((_cell), (_word)) == SCM_PACK (NULL))
+ (SCM_UNPACK (SCM_CELL_OBJECT ((_cell), (_word))) == 0)
#define SCM_WEAK_PAIR_CAR_DELETED_P(_cell) \
(SCM_WEAK_PAIR_WORD_DELETED_P ((_cell), 0))
#define SCM_WEAK_PAIR_CDR_DELETED_P(_cell) \