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/* This file is part of the Project Athena Zephyr Notification System.
* It is one of the source files comprising zwgc, the Zephyr WindowGram
* client.
*
* Created by: Marc Horowitz <marc@athena.mit.edu>
*
* $Id$
*
* Copyright (c) 1989 by the Massachusetts Institute of Technology.
* For copying and distribution information, see the file
* "mit-copyright.h".
*/
#ifndef _XREVSTACK_H_
#define _XREVSTACK_H_
#if (!defined(lint) && !defined(SABER))
static const char rcsid_xrevstack_h[] = "$Id$";
#endif
#include <zephyr/mit-copyright.h>
extern x_gram *bottom_gram; /* for testing against NULL */
extern x_gram *unlinked;
extern int reverse_stack; /* is reverse stack on? */
extern void add_to_bottom(x_gram *);
extern void delete_gram(x_gram *);
extern void unlink_gram(x_gram *);
extern void pull_to_top(x_gram *);
extern void push_to_bottom(x_gram *);
#endif /* _XREVSTACK_H_ */
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