diff options
Diffstat (limited to 'contrib/gcc/splay-tree.h')
| -rw-r--r-- | contrib/gcc/splay-tree.h | 56 |
1 files changed, 47 insertions, 9 deletions
diff --git a/contrib/gcc/splay-tree.h b/contrib/gcc/splay-tree.h index e828fe7..4b7a7bf 100644 --- a/contrib/gcc/splay-tree.h +++ b/contrib/gcc/splay-tree.h @@ -1,21 +1,21 @@ /* A splay-tree datatype. - Copyright (C) 1998 Free Software Foundation, Inc. + Copyright 1998, 1999, 2000 Free Software Foundation, Inc. Contributed by Mark Mitchell (mark@markmitchell.com). -This file is part of GNU CC. +This file is part of GCC. -GNU CC is free software; you can redistribute it and/or modify it +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. -GNU CC is distributed in the hope that it will be useful, but +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 GNU CC; see the file COPYING. If not, write to +along with GCC; see the file COPYING. If not, write to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ @@ -44,7 +44,7 @@ typedef unsigned long int splay_tree_key; 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. */ @@ -61,8 +61,20 @@ typedef void (*splay_tree_delete_value_fn) PARAMS((splay_tree_value)); /* The type of a function used to iterate over the tree. */ typedef int (*splay_tree_foreach_fn) PARAMS((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) PARAMS((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) PARAMS((void *, void *)); + /* The nodes in the splay tree. */ -struct splay_tree_node +struct splay_tree_node_s { /* The key. */ splay_tree_key key; @@ -76,7 +88,7 @@ struct splay_tree_node }; /* The splay tree itself. */ -typedef struct splay_tree +typedef struct splay_tree_s { /* The root of the tree. */ splay_tree_node root; @@ -89,18 +101,44 @@ typedef struct splay_tree /* The deallocate-value function. NULL if no cleanup is necessary. */ splay_tree_delete_value_fn delete_value; + + /* Allocate/free functions, and a data pointer to pass to them. */ + splay_tree_allocate_fn allocate; + splay_tree_deallocate_fn deallocate; + void *allocate_data; + } *splay_tree; extern splay_tree splay_tree_new PARAMS((splay_tree_compare_fn, splay_tree_delete_key_fn, splay_tree_delete_value_fn)); +extern splay_tree splay_tree_new_with_allocator + PARAMS((splay_tree_compare_fn, + splay_tree_delete_key_fn, + splay_tree_delete_value_fn, + splay_tree_allocate_fn, + splay_tree_deallocate_fn, + void *)); 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 splay_tree_node splay_tree_max + PARAMS((splay_tree)); +extern splay_tree_node splay_tree_min + PARAMS((splay_tree)); extern int splay_tree_foreach PARAMS((splay_tree, splay_tree_foreach_fn, void*)); |
