/* A splay-tree datatype.
- Copyright (C) 1998 Free Software Foundation, Inc.
+ Copyright (C) 1998, 2000 Free Software Foundation, Inc.
Contributed by Mark Mitchell (mark@markmitchell.com).
This file is part of GNU CC.
typedef unsigned long int splay_tree_value;
/* Forward declaration for a node in the tree. */
-typedef struct splay_tree_node *splay_tree_node;
+typedef struct splay_tree_node_s *splay_tree_node;
/* The type of a function which compares two splay-tree keys. The
function should return values as for qsort. */
typedef int (*splay_tree_foreach_fn) PARAMS((splay_tree_node, void*));
/* The nodes in the splay tree. */
-struct splay_tree_node
+struct splay_tree_node_s
{
/* The key. */
splay_tree_key key;
};
/* The splay tree itself. */
-typedef struct splay_tree
+typedef struct splay_tree_s
{
/* The root of the tree. */
splay_tree_node root;
splay_tree_delete_key_fn,
splay_tree_delete_value_fn));
extern void splay_tree_delete PARAMS((splay_tree));
-extern void splay_tree_insert PARAMS((splay_tree,
+extern splay_tree_node splay_tree_insert
+ PARAMS((splay_tree,
splay_tree_key,
splay_tree_value));
+extern void splay_tree_remove PARAMS((splay_tree,
+ splay_tree_key));
extern splay_tree_node splay_tree_lookup
PARAMS((splay_tree,
splay_tree_key));
+extern splay_tree_node splay_tree_predecessor
+ PARAMS((splay_tree,
+ splay_tree_key));
+extern splay_tree_node splay_tree_successor
+ PARAMS((splay_tree,
+ splay_tree_key));
extern int splay_tree_foreach PARAMS((splay_tree,
splay_tree_foreach_fn,
void*));