1/*
2 * Copyright (c) 2004-2005 The Free Software Foundation,
3 *                         Derek Price, and Ximbiot <http://ximbiot.com>.
4 *
5 * You may distribute under the terms of the GNU General Public License as
6 * specified in the README file that comes with the CVS source distribution.
7 */
8
9void push (List *_stack, void *_elem);
10void *pop (List *_stack);
11void unshift (List *_stack, void *_elem);
12void *shift (List *_stack);
13void push_string (List *_stack, char *_elem);
14char *pop_string (List *_stack);
15void unshift_string (List *_stack, char *_elem);
16char *shift_string (List *_stack);
17int isempty (List *_stack);
18