added g_list_nth_prev() which walks ->prev instead of ->next.
[platform/upstream/glib.git] / gtree.h
1 /* GLIB - Library of useful routines for C programming
2  * Copyright (C) 1995-1997  Peter Mattis, Spencer Kimball and Josh MacDonald
3  *
4  * This 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 of the License, or (at your option) any later version.
8  *
9  * This 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.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with this library; if not, write to the
16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17  * Boston, MA 02111-1307, USA.
18  */
19
20 /*
21  * Modified by the GLib Team and others 1997-2000.  See the AUTHORS
22  * file for a list of people on the GLib Team.  See the ChangeLog
23  * files for a list of changes.  These files are distributed with
24  * GLib at ftp://ftp.gtk.org/pub/gtk/. 
25  */
26
27 #ifndef __G_TREE_H__
28 #define __G_TREE_H__
29
30 #include <gnode.h>
31
32 G_BEGIN_DECLS
33
34 typedef struct _GTree  GTree;
35
36 typedef gint   (*GTraverseFunc) (gpointer  key,
37                                  gpointer  value,
38                                  gpointer  data);
39
40 /* Balanced binary trees
41  */
42 GTree*   g_tree_new             (GCompareFunc      key_compare_func);
43 GTree*   g_tree_new_with_data   (GCompareDataFunc  key_compare_func,
44                                  gpointer          user_data);
45 void     g_tree_destroy         (GTree            *tree);
46 void     g_tree_insert          (GTree            *tree,
47                                  gpointer          key,
48                                  gpointer          value);
49 void     g_tree_remove          (GTree            *tree,
50                                  gconstpointer     key);
51 gpointer g_tree_lookup          (GTree            *tree,
52                                  gconstpointer     key);
53 gboolean g_tree_lookup_extended (GTree            *tree,
54                                  gconstpointer     lookup_key,
55                                  gpointer         *orig_key,
56                                  gpointer         *value);
57 void     g_tree_traverse        (GTree            *tree,
58                                  GTraverseFunc     traverse_func,
59                                  GTraverseType     traverse_type,
60                                  gpointer          data);
61 gpointer g_tree_search          (GTree            *tree,
62                                  GCompareFunc      search_func,
63                                  gconstpointer     data);
64 gint     g_tree_height          (GTree            *tree);
65 gint     g_tree_nnodes          (GTree            *tree);
66
67
68
69 G_END_DECLS
70
71 #endif /* __G_TREE_H__ */
72