1 /* Implement twalk using twalk_r.
2 Copyright (C) 2019-2021 Free Software Foundation, Inc.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, see <https://www.gnu.org/licenses/>.
20 struct twalk_with_twalk_r_closure
22 void (*action
) (const void *, VISIT
, int);
27 twalk_with_twalk_r_action (const void *nodep
, VISIT which
, void *closure0
)
29 struct twalk_with_twalk_r_closure
*closure
= closure0
;
34 closure
->action (nodep
, which
, closure
->depth
);
37 closure
->action (nodep
, which
, closure
->depth
);
41 /* The preorder action incremented the depth. */
42 closure
->action (nodep
, which
, closure
->depth
- 1);
46 closure
->action (nodep
, which
, closure
->depth
);
52 twalk (const void *root
, void (*action
) (const void *, VISIT
, int))
54 struct twalk_with_twalk_r_closure closure
= { action
, 0 };
55 twalk_r (root
, twalk_with_twalk_r_action
, &closure
);