ucx: src/cx/linked_list.h@227c2eabbef8 (annotated)

src/cx/linked_list.h@227c2eabbef8 (annotated)

src/cx/linked_list.h

Sun, 03 Oct 2021 16:30:47 +0200

author: Mike Becker <universe@uap-core.de>
date: Sun, 03 Oct 2021 16:30:47 +0200
changeset 456: 227c2eabbef8
parent 453: bb144d08cd44
child 466: 28bc3e10ac28
permissions: -rw-r--r--

change cx_linked_list_last() and add a test for it

 /*
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
  *
  * Copyright 2021 Mike Becker, Olaf Wintermann 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 HOLDER 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.
  */
 /**
  * \file linked_list.h
  * \brief Linked list implementation.
  * \details Also provides several low-level functions for custom linked list implementations.
  * \author Mike Becker
  * \author Olaf Wintermann
  * \version 3.0
  * \copyright 2-Clause BSD License
  */
 #ifndef UCX_LINKED_LIST_H
 #define UCX_LINKED_LIST_H
 #include <stddef.h>
 #include "list.h"
 #ifdef __cplusplus
 extern "C" {
 #endif
 CxList cxLinkedListCreate(CxAllocator allocator, CxListComparator comparator, size_t item_size);
 void cxLinkedListDestroy(CxList list);
 size_t cxLinkedListRecalculateSize(CxList list);
 /**
  * Finds the node at a certain index.
  *
  * This function can be used to start at an arbitrary position within the list.
  * If the search index is large than the start index, \p loc_advance must denote
  * the location of some sort of \c next pointer (i.e. a pointer to the next node).
  * But it is also possible that the search index is smaller than the start index
  * (e.g. in cases where traversing a list backwards is faster) in which case
  * \p loc_advance must denote the location of some sort of \c prev pointer
  * (i.e. a pointer to the previous node).
  *
  * @param start a pointer to the start node
  * @param start_index the start index
  * @param loc_advance the location of the pointer to advance
  * @param index the search index
  * @return the node found at the specified index
  */
 void *cx_linked_list_at(void *start, size_t start_index, ptrdiff_t loc_advance, size_t index);
 /**
  * Finds the last node in a linked list.
  *
  * The function starts with the pointer denoted by \p begin and traverses the list
  * along a next pointer whose location within the node struct is
  * denoted by \p loc_next.
  *
  * @param begin a pointer to the begin node
  * @param loc_next the location of the \c next pointer
  * @return a pointer to the last node or \c NULL if \p begin is \c NULL
  */
 void *cx_linked_list_last(void *begin, ptrdiff_t loc_next);
 /**
  * Adds a new node to a linked list.
  *
  * \remark One of the pointers \p begin and \p end may be \c NULL, but not both.
  *
  * @param begin a pointer to the begin node pointer (if your list has one)
  * @param end a pointer to the end node pointer (if your list has one)
  * @param loc_prev the location of a \c prev pointer within your node struct (negative if your struct does not have one)
  * @param loc_next the location of a \c next pointer within your node struct (negative if your struct does not have one)
  * @param new_node a pointer to the node that shall be appended
  */
 void cx_linked_list_add(void **begin, void **end, ptrdiff_t loc_prev, ptrdiff_t loc_next, void *new_node);
 #ifdef __cplusplus
 } /* extern "C" */
 #endif
 #endif /* UCX_LINKED_LIST_H */

Mercurial > hg > ucx / annotate

src/cx/linked_list.h@227c2eabbef8 (annotated)

src/cx/linked_list.h