pr_tree.h

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/*
 * libdict -- internal path reduction tree interface.
 *
 * Copyright (c) 2001-2014, Farooq Mela
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
#ifndef LIBDICT_PR_TREE_H__
#define LIBDICT_PR_TREE_H__
 
#include "dict.h"
 
BEGIN_DECL
 
typedef struct pr_tree pr_tree;
 
pr_tree*        pr_tree_new(dict_compare_func cmp_func);
dict*           pr_dict_new(dict_compare_func cmp_func);
size_t          pr_tree_free(pr_tree* tree, dict_delete_func delete_func);
 
dict_insert_result
                pr_tree_insert(pr_tree* tree, void* key);
void**          pr_tree_search(pr_tree* tree, const void* key);
void**          pr_tree_search_le(pr_tree* tree, const void* key);
void**          pr_tree_search_lt(pr_tree* tree, const void* key);
void**          pr_tree_search_ge(pr_tree* tree, const void* key);
void**          pr_tree_search_gt(pr_tree* tree, const void* key);
dict_remove_result
                pr_tree_remove(pr_tree* tree, const void* key);
size_t          pr_tree_clear(pr_tree* tree, dict_delete_func delete_func);
size_t          pr_tree_traverse(pr_tree* tree, dict_visit_func visit, void* user_data);
bool            pr_tree_select(pr_tree* tree, size_t n, const void** key, void** datum);
size_t          pr_tree_count(const pr_tree* tree);
size_t          pr_tree_min_path_length(const pr_tree* tree);
size_t          pr_tree_max_path_length(const pr_tree* tree);
size_t          pr_tree_total_path_length(const pr_tree* tree);
bool            pr_tree_verify(const pr_tree* tree);
 
typedef struct pr_itor pr_itor;
 
pr_itor*        pr_itor_new(pr_tree* tree);
dict_itor*      pr_dict_itor_new(pr_tree* tree);
void            pr_itor_free(pr_itor* tree);
 
bool            pr_itor_valid(const pr_itor* itor);
void            pr_itor_invalidate(pr_itor* itor);
bool            pr_itor_next(pr_itor* itor);
bool            pr_itor_prev(pr_itor* itor);
bool            pr_itor_nextn(pr_itor* itor, size_t count);
bool            pr_itor_prevn(pr_itor* itor, size_t count);
bool            pr_itor_first(pr_itor* itor);
bool            pr_itor_last(pr_itor* itor);
bool            pr_itor_search(pr_itor* itor, const void* key);
bool            pr_itor_search_le(pr_itor* itor, const void* key);
bool            pr_itor_search_lt(pr_itor* itor, const void* key);
bool            pr_itor_search_ge(pr_itor* itor, const void* key);
bool            pr_itor_search_gt(pr_itor* itor, const void* key);
const void*     pr_itor_key(const pr_itor* itor);
void**          pr_itor_datum(pr_itor* itor);
int             pr_itor_compare(const pr_itor* i1, const pr_itor* i2);
bool            pr_itor_remove(pr_itor* itor);
 
END_DECL
 
#endif /* !LIBDICT_PR_TREE_H__ */