1/*
2 * This file is part of ltrace.
3 * Copyright (C) 2011,2012 Petr Machata, Red Hat Inc.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation; either version 2 of the
8 * License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
18 * 02110-1301 USA
19 */
20
21#ifndef ZERO_H
22#define ZERO_H
23
24#include "forward.h"
25
26/* This returns a pre-built "zero" node without argument.  Share, but
27   don't free.  */
28struct expr_node *expr_node_zero(void);
29
30/* This builds a new "zero" node with EXPR as argument.  EXPR is owned
31 * by the built node if OWN.  Returns NULL if something failed.  */
32struct expr_node *build_zero_w_arg(struct expr_node *expr, int own);
33
34#endif /* ZERO_H */
35