1/* Copyright (C) 2012-2017 Free Software Foundation, Inc.
2
3   This file is part of GNU Binutils.
4
5   This program is free software; you can redistribute it and/or modify
6   it under the terms of the GNU General Public License as published by
7   the Free Software Foundation; either version 3 of the License, or
8   (at your option) any later version.
9
10   This program is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   GNU 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 Street - Fifth Floor, Boston,
18   MA 02110-1301, USA.  */
19
20#ifndef cg_dfn_h
21#define cg_dfn_h
22
23/*
24 * Flags which mark a symbol as topologically ``busy'' or as
25 * topologically ``not_numbered'':
26 */
27#define	DFN_BUSY	-1
28#define	DFN_NAN		0
29
30/*
31 * Depth-first numbering of a call-graph.
32 */
33
34extern void cg_dfn (Sym * root);
35
36#endif /* cg_dfn_h */
37