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      1 /* Copyright (C) 2012-2025 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 
     34 extern void cg_dfn (Sym * root);
     35 
     36 #endif /* cg_dfn_h */
     37