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Diffstat (limited to 'include/splay-tree.h')
-rw-r--r-- | include/splay-tree.h | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/include/splay-tree.h b/include/splay-tree.h deleted file mode 100644 index a26135a..0000000 --- a/include/splay-tree.h +++ /dev/null @@ -1,161 +0,0 @@ -/* A splay-tree datatype. - Copyright 1998, 1999, 2000, 2002, 2005, 2007, 2009, 2010 - Free Software Foundation, Inc. - Contributed by Mark Mitchell (mark@markmitchell.com). - - This file is part of GCC. - - GCC is free software; you can redistribute it and/or modify it - under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - GCC is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. - - You should have received a copy of the GNU General Public License - along with GCC; see the file COPYING. If not, write to - the Free Software Foundation, 51 Franklin Street - Fifth Floor, - Boston, MA 02110-1301, USA. */ - -/* For an easily readable description of splay-trees, see: - - Lewis, Harry R. and Denenberg, Larry. Data Structures and Their - Algorithms. Harper-Collins, Inc. 1991. - - The major feature of splay trees is that all basic tree operations - are amortized O(log n) time for a tree with n nodes. */ - -#ifndef _SPLAY_TREE_H -#define _SPLAY_TREE_H - -#ifdef __cplusplus -extern "C" { -#endif /* __cplusplus */ - -#include "ansidecl.h" - -#ifdef HAVE_STDINT_H -#include <stdint.h> -#endif -#ifdef HAVE_INTTYPES_H -#include <inttypes.h> -#endif - -#ifndef GTY -#define GTY(X) -#endif - -/* Use typedefs for the key and data types to facilitate changing - these types, if necessary. These types should be sufficiently wide - that any pointer or scalar can be cast to these types, and then - cast back, without loss of precision. */ -typedef uintptr_t splay_tree_key; -typedef uintptr_t splay_tree_value; - -/* Forward declaration for a node in the tree. */ -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_compare_fn) (splay_tree_key, splay_tree_key); - -/* The type of a function used to deallocate any resources associated - with the key. */ -typedef void (*splay_tree_delete_key_fn) (splay_tree_key); - -/* The type of a function used to deallocate any resources associated - with the value. */ -typedef void (*splay_tree_delete_value_fn) (splay_tree_value); - -/* The type of a function used to iterate over the tree. */ -typedef int (*splay_tree_foreach_fn) (splay_tree_node, void*); - -/* The type of a function used to allocate memory for tree root and - node structures. The first argument is the number of bytes needed; - the second is a data pointer the splay tree functions pass through - to the allocator. This function must never return zero. */ -typedef void *(*splay_tree_allocate_fn) (int, void *); - -/* The type of a function used to free memory allocated using the - corresponding splay_tree_allocate_fn. The first argument is the - memory to be freed; the latter is a data pointer the splay tree - functions pass through to the freer. */ -typedef void (*splay_tree_deallocate_fn) (void *, void *); - -/* The nodes in the splay tree. */ -struct GTY(()) splay_tree_node_s { - /* The key. */ - splay_tree_key GTY ((use_param1)) key; - - /* The value. */ - splay_tree_value GTY ((use_param2)) value; - - /* The left and right children, respectively. */ - splay_tree_node GTY ((use_params)) left; - splay_tree_node GTY ((use_params)) right; -}; - -/* The splay tree itself. */ -struct GTY(()) splay_tree_s { - /* The root of the tree. */ - splay_tree_node GTY ((use_params)) root; - - /* The comparision function. */ - splay_tree_compare_fn comp; - - /* The deallocate-key function. NULL if no cleanup is necessary. */ - splay_tree_delete_key_fn delete_key; - - /* The deallocate-value function. NULL if no cleanup is necessary. */ - splay_tree_delete_value_fn delete_value; - - /* Node allocate function. Takes allocate_data as a parameter. */ - splay_tree_allocate_fn allocate; - - /* Free function for nodes and trees. Takes allocate_data as a parameter. */ - splay_tree_deallocate_fn deallocate; - - /* Parameter for allocate/free functions. */ - void * GTY((skip)) allocate_data; -}; - -typedef struct splay_tree_s *splay_tree; - -extern splay_tree splay_tree_new (splay_tree_compare_fn, - splay_tree_delete_key_fn, - splay_tree_delete_value_fn); -extern splay_tree splay_tree_new_with_allocator (splay_tree_compare_fn, - splay_tree_delete_key_fn, - splay_tree_delete_value_fn, - splay_tree_allocate_fn, - splay_tree_deallocate_fn, - void *); -extern splay_tree splay_tree_new_typed_alloc (splay_tree_compare_fn, - splay_tree_delete_key_fn, - splay_tree_delete_value_fn, - splay_tree_allocate_fn, - splay_tree_allocate_fn, - splay_tree_deallocate_fn, - void *); -extern void splay_tree_delete (splay_tree); -extern splay_tree_node splay_tree_insert (splay_tree, - splay_tree_key, - splay_tree_value); -extern void splay_tree_remove (splay_tree, splay_tree_key); -extern splay_tree_node splay_tree_lookup (splay_tree, splay_tree_key); -extern splay_tree_node splay_tree_predecessor (splay_tree, splay_tree_key); -extern splay_tree_node splay_tree_successor (splay_tree, splay_tree_key); -extern splay_tree_node splay_tree_max (splay_tree); -extern splay_tree_node splay_tree_min (splay_tree); -extern int splay_tree_foreach (splay_tree, splay_tree_foreach_fn, void*); -extern int splay_tree_compare_ints (splay_tree_key, splay_tree_key); -extern int splay_tree_compare_pointers (splay_tree_key, splay_tree_key); - -#ifdef __cplusplus -} -#endif /* __cplusplus */ - -#endif /* _SPLAY_TREE_H */ |