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/**************************************************************
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*************************************************************/
/*[]---------------------------------------------------[]*/
/*| |*/
/*| Implementation of the list data type |*/
/*| |*/
/*| |*/
/*| Author: Alexander Gelfenbain |*/
/*[]---------------------------------------------------[]*/
#ifndef __CLIST_H
#define __CLIST_H
#ifdef __cplusplus
extern "C"
{
#endif
/*
* List of void * pointers
*/
typedef struct _list *list;
typedef void (*list_destructor)(void *);
/*- constructors and a destructor */
list listNewEmpty(void);
#ifdef TEST
list listNewCopy(list);
#endif
void listDispose(list);
void listSetElementDtor(list, list_destructor); /*- this function will be executed when the element is removed via listRemove() or listClear() */
/*- queries */
void * listCurrent(list);
int listCount(list);
int listIsEmpty(list);
#ifdef TEST
int listAtFirst(list);
int listAtLast(list);
int listPosition(list); /* Expensive! */
#endif
/*- search */
int listFind(list, void *); /* Returns true/false */
/*- positioning functions */
/*- return the number of elements by which the current position in the list changes */
int listNext(list);
int listSkipForward(list, int n);
int listToFirst(list);
int listToLast(list);
int listPositionAt(list, int n); /* Expensive! */
/*- adding and removing elements */
list listAppend(list, void *);
#ifdef TEST
list listPrepend(list, void *);
list listInsertAfter(list, void *);
list listInsertBefore(list, void *);
#endif
list listRemove(list); /* removes the current element */
list listClear(list); /* removes all elements */
#ifdef TEST
/*- forall */
void listForAll(list, void (*f)(void *));
#endif
#ifdef __cplusplus
}
#endif
#endif /* __CLIST_H */
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