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Merge pull request wangzheng0822#94 from bkcarlos/master
通用单链表实现提交
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,281 @@ | ||
#include "singleList.h" | ||
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#include <string.h> | ||
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linkedList * listCreate() | ||
{ | ||
linkedList *list = NULL; | ||
list = malloc(sizeof(*list)); | ||
if (NULL == list) | ||
{ | ||
return NULL; | ||
} | ||
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list->dup = NULL; | ||
list->free = NULL; | ||
list->match = NULL; | ||
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list->head = NULL; | ||
list->len = 0; | ||
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return list; | ||
} | ||
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// 释放 | ||
void listRelease(linkedList *list) | ||
{ | ||
if (NULL == list) | ||
{ | ||
return; | ||
} | ||
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listEmpty(list); | ||
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free(list); | ||
list = NULL; | ||
} | ||
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void listEmpty(linkedList *list) | ||
{ | ||
if (NULL == list) | ||
{ | ||
return; | ||
} | ||
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while (NULL != list->head) | ||
{ | ||
listNode *pNode = list->head; | ||
list->head = pNode->next; | ||
if (NULL != list->free) | ||
{ | ||
list->free(pNode->value); | ||
} | ||
else | ||
{ | ||
free(pNode->value); | ||
} | ||
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pNode->next = NULL; | ||
free(pNode); | ||
pNode = NULL; | ||
} | ||
} | ||
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linkedList * listAddNodeHead(linkedList *list, void * value) | ||
{ | ||
if (NULL == list || NULL == value) | ||
{ | ||
return list; | ||
} | ||
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listNode *node = NULL; | ||
node = malloc(sizeof(*node)); | ||
if (NULL == node) | ||
{ | ||
return list; | ||
} | ||
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node->value = value; | ||
node->next = list->head; | ||
list->head = node; | ||
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++list->len; | ||
return list; | ||
} | ||
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linkedList * listAddNodeTail(linkedList *list, void *value) | ||
{ | ||
if (NULL == list || NULL == value) | ||
{ | ||
return list; | ||
} | ||
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listNode *node = NULL; | ||
node = malloc(sizeof(*node)); | ||
if (NULL == node) | ||
{ | ||
return list; | ||
} | ||
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node->value = value; | ||
node->next = NULL; | ||
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if (NULL == list->head | ||
&& list->len == 0) | ||
{ | ||
list->head = node; | ||
} | ||
else | ||
{ | ||
listNode *tail = list->head; | ||
listNode *pre = list->head; | ||
while (NULL != tail) | ||
{ | ||
pre = tail; | ||
tail = tail->next; | ||
} | ||
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pre->next = node; | ||
} | ||
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++list->len; | ||
return list; | ||
} | ||
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linkedList * listInsertNode(linkedList *list, listNode *old_node, void *value, bool after) | ||
{ | ||
if (NULL == list || NULL == old_node) | ||
{ | ||
return list; | ||
} | ||
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listNode *pNode = NULL; | ||
pNode = malloc(sizeof(*pNode)); | ||
if (NULL == pNode) | ||
{ | ||
return list; | ||
} | ||
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pNode->value = value; | ||
if (after) | ||
{ | ||
pNode->next = old_node->next; | ||
old_node->next = pNode; | ||
} | ||
else | ||
{ | ||
listNode *pre = list->head; | ||
while (pre->next != old_node) | ||
{ | ||
pre = pre->next; | ||
} | ||
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if (NULL != pre) | ||
{ | ||
pre->next = pNode; | ||
pNode->next = old_node; | ||
} | ||
} | ||
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++list->len; | ||
return list; | ||
} | ||
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// 没设置释放函数时不做释放处理 | ||
void listDelNode(linkedList *list, listNode *node) | ||
{ | ||
if (NULL == list || NULL == node) | ||
{ | ||
return; | ||
} | ||
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listNode *pre = list->head; | ||
listNode *cur = list->head; | ||
while (NULL != cur && cur != node) | ||
{ | ||
pre = cur; | ||
cur = cur->next; | ||
} | ||
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// 不在该链表中 | ||
if (NULL == pre) | ||
{ | ||
return; | ||
} | ||
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pre->next = node->next; | ||
node->next = NULL; | ||
--list->len; | ||
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if (NULL != list->free) | ||
{ | ||
list->free(node->value); | ||
free(node); | ||
node = NULL; | ||
} | ||
} | ||
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listNode * listSearchKey(linkedList *list, void *key) | ||
{ | ||
if (NULL == list) | ||
{ | ||
return NULL; | ||
} | ||
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listNode *node = list->head; | ||
while (NULL != node) | ||
{ | ||
if (NULL != list->match) | ||
{ | ||
if (list->match(key, node->value) == 0) | ||
{ | ||
return node; | ||
} | ||
} | ||
else | ||
{ | ||
if (key == node->value) | ||
{ | ||
return node; | ||
} | ||
} | ||
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node = node->next; | ||
} | ||
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return NULL; | ||
} | ||
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listNode * listIndex(linkedList *list, long index) | ||
{ | ||
if (NULL == list) | ||
{ | ||
return NULL; | ||
} | ||
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if (index <= 0 | ||
|| index > list->len) | ||
{ | ||
return NULL; | ||
} | ||
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listNode *pNode = list->head; | ||
for (long i = 0; i < index; ++i) | ||
{ | ||
pNode = pNode->next; | ||
} | ||
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return pNode; | ||
} | ||
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linkedList* listRewind(linkedList *list) | ||
{ | ||
if (NULL == list) | ||
{ | ||
return NULL; | ||
} | ||
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listNode *head = list->head; | ||
listNode *pre = NULL; | ||
listNode *next = NULL; | ||
while (NULL != head) | ||
{ | ||
next = head->next; | ||
head->next = pre; | ||
pre = head; | ||
head = next; | ||
} | ||
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list->head = pre; | ||
return list; | ||
} | ||
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size_t listLength(linkedList *list) | ||
{ | ||
if (NULL == list) | ||
{ | ||
return 0; | ||
} | ||
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return list->len; | ||
} |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,46 @@ | ||
#ifndef __SINGLELIST_H__ | ||
#define __SINGLELIST_H__ | ||
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#include <stdlib.h> | ||
#include <stdbool.h> | ||
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typedef struct listNode | ||
{ | ||
struct listNode *next; | ||
void *value; | ||
}listNode; | ||
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typedef struct linkedList | ||
{ | ||
listNode *head; | ||
size_t len; | ||
size_t typesize; | ||
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void(*dup)(void*, void*); | ||
int(*match)(void*, void*); | ||
void(*free)(void*); | ||
}linkedList; | ||
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#define listSetDupMethod(l,m) ((l)->dup = (m)) | ||
#define listSetFreeMethod(l,m) ((l)->free = (m)) | ||
#define listSetMatchMethod(l,m) ((l)->match = (m)) | ||
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#define listGetDupMethod(l) ((l)->dup) | ||
#define listGetFree(l) ((l)->free) | ||
#define listGetMatchMethod(l) ((l)->match) | ||
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linkedList *listCreate(); | ||
void listRelease(linkedList *list); | ||
void listEmpty(linkedList *list); | ||
linkedList *listAddNodeHead(linkedList *list, void *value); | ||
linkedList *listAddNodeTail(linkedList *list, void *value); | ||
linkedList *listInsertNode(linkedList *list, listNode *old_node, void *value, bool after); | ||
void listDelNode(linkedList *list, listNode *node); | ||
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listNode *listSearchKey(linkedList *list, void *key); | ||
listNode *listIndex(linkedList *list, long index); | ||
linkedList* listRewind(linkedList *list); | ||
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size_t listLength(linkedList *list); | ||
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#endif // !__SINGLELIST_H__ |
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