From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- include/splay-tree.h | 168 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 168 insertions(+) create mode 100644 include/splay-tree.h (limited to 'include/splay-tree.h') diff --git a/include/splay-tree.h b/include/splay-tree.h new file mode 100644 index 000000000..480b2c43e --- /dev/null +++ b/include/splay-tree.h @@ -0,0 +1,168 @@ +/* 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" + +#ifndef _WIN64 + typedef unsigned long int libi_uhostptr_t; + typedef long int libi_shostptr_t; +#else +#ifdef __GNUC__ + __extension__ +#endif + typedef unsigned long long libi_uhostptr_t; +#ifdef __GNUC__ + __extension__ +#endif + typedef long long libi_shostptr_t; +#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 libi_uhostptr_t splay_tree_key; +typedef libi_uhostptr_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 */ -- cgit v1.2.3