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 PROTO((List *_stack, void *_elem)); 10void *pop PROTO((List *_stack)); 11void unshift PROTO((List *_stack, void *_elem)); 12void *shift PROTO((List *_stack)); 13void push_string PROTO((List *_stack, char *_elem)); 14char *pop_string PROTO((List *_stack)); 15void unshift_string PROTO((List *_stack, char *_elem)); 16char *shift_string PROTO((List *_stack)); 17int isempty PROTO((List *_stack)); 18