34 lines
873 B
C
34 lines
873 B
C
/*************************************************************************
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> File Name: skiplist.h
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> Author: jinshaohui
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> Mail: jinshaohui789@163.com
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> Time: 18-10-31
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> Desc:
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************************************************************************/
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#ifndef __SKIP_LIST_H__
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#define __SKIP_LIST_H__
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typedef struct _node
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{
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int key; /*key是唯一的*/
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int value; /*存储的内容*/
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int max_level; /*当前节点最大层数*/
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struct _node *next[0];/*level层链表结构*/
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}node;
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typedef struct _skiplist
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{
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int level;
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int count;
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node *head;
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}skiplist;
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/*根据当前结构体元素的地址，获取到结构体首地址*/
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#define offsetof(TYPE,MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
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#define container(ptr,type,member) ({\
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const typeof( ((type *)0)->member) *__mptr = (ptr);\
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(type *) ( (char *)__mptr - offsetof(type,member));})
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#endif
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