数据结构——线性表的顺序存储结构

创建一个可复用的顺序表

seqlist.h(头文件）

 1 #ifndef _SEQLIST_H_
 2 #define _SEQLIST_H_
 3 //数据封装
 4 typedef void seqlist;
 5 typedef void  seqlistnode;
 6 //创建
 7 seqlist* seqlist_create(int capacity);
 8 //销毁
 9 void seqlist_destroy(seqlist* list);
10 //清除
11 void seqlist_clear(seqlist* list);
12 //长度
13 int seqlist_length(seqlist* list);
14 //最大空间
15 int seqlist_capacity(seqlist* list);
16 //插入
17 int seqlist_insert(seqlist* list,seqlistnode* node,int pos);
18 //取值
19 seqlistnode* seqlist_get(seqlist* list,int pos);
20 //删除
21 seqlistnode* seqlist_delete(seqlist* list,int pos);
22 
23 #endif

 seqlist.c（功能函数）

  1 #include<stdio.h>
  2 #include<malloc.h>
  3 #include"seqlist.h"
  4 
  5 typedef unsigned long tseqlistnode;//64位地址
  6 typedef struct _tag_seqlist
  7 {
  8     int capacity;
  9     int length;
 10     tseqlistnode *node;
 11 }tseqlist;
 12 
 13 seqlist* seqlist_create(int capacity)
 14 {
 15     tseqlist* ret=NULL;
 16     if(capacity>=0)
 17     {
 18         ret=(tseqlist*)malloc(sizeof(tseqlist)+capacity*sizeof(tseqlistnode));
 19     }
 20     if(ret!=NULL)
 21     {
 22         ret->capacity=capacity;
 23         ret->length=0;
 24         ret->node=(tseqlistnode*)(ret+1);
 25     }
 26     return ret;
 27 }
 28 
 29 void seqlist_destroy(seqlist* list)
 30 {
 31     free(list);
 32 }
 33 
 34 void seqlist_clear(seqlist* list)
 35 {
 36     tseqlist* slist=(tseqlist*)list;
 37     if(slist!=NULL)
 38     {
 39         slist->length=0;
 40     }
 41 }
 42 
 43 int seqlist_length(seqlist* list)
 44 {
 45     tseqlist* slist=(tseqlist*)list;
 46     int ret=-1;
 47     if(slist!=NULL)
 48     {
 49         ret=slist->length;
 50     }
 51     return ret;
 52 }
 53 
 54 int seqlist_capacity(seqlist* list)
 55 {
 56     tseqlist* slist=(tseqlist*)list;
 57     int ret=-1;
 58     if(slist!=NULL)
 59     {
 60         ret=slist->capacity;
 61     }
 62     return ret;
 63 }
 64 
 65 int seqlist_insert(seqlist* list,seqlistnode* node,int pos)
 66 {
 67     tseqlist* slist=(tseqlist*)list;
 68     int i=0;
 69     int ret=(slist!=NULL);
 70     ret=ret&&(slist->length+1<=slist->capacity);
 71     ret=ret&&(pos>=0);
 72     if(ret)
 73     {
 74         if(pos>=slist->length)//插入位置大，自动放入最后
 75         {
 76             pos=slist->length;
 77         }
 78         for(i=slist->length;i>pos;i--)
 79         {
 80             slist->node[i]=slist->node[i-1];
 81         }
 82         slist->node[pos]=(tseqlistnode)node;
 83         slist->length++;
 84     }
 85     return ret;
 86 }
 87 
 88 seqlistnode* seqlist_get(seqlist* list,int pos)
 89 {
 90     tseqlist* slist=(tseqlist*)list;
 91     seqlistnode* ret=NULL;
 92     int r=(slist!=NULL);
 93     r=r&&(pos>=0)&&(pos<slist->length);
 94     if(r)
 95     {    
 96         ret=(seqlistnode*)slist->node[pos];
 97     }
 98     return ret;
 99 }
100 
101 seqlistnode* seqlist_delete(seqlist* list,int pos)
102 {
103     tseqlist* slist=(tseqlist*)list;
104     int i=0;
105     seqlist* ret=NULL;
106     int r=(slist!=NULL);
107     r=r&&(pos>=0)&&(pos<slist->length);
108     if(r)
109     {
110         ret=(seqlist*)slist->node[pos];
111         for(i=pos;i<slist->length-1;i++)
112         {
113             slist->node[i]=slist->node[i+1];
114         }
115         slist->length--;
116         return ret;
117     }
118 }

seqlistmain.c（实现程序）

 1 #include<stdio.h>
 2 #include<malloc.h>
 3 #include"seqlist.h"
 4 int main()
 5 {
 6     seqlist* list=seqlist_create(5);
 7     int a=1;
 8     int b=2;
 9     int c=3;
10     int d=4;
11     int e=5;
12     int i=0;
13     seqlist_insert(list,&a,0);
14     seqlist_insert(list,&b,0);
15     seqlist_insert(list,&c,0);
16     seqlist_insert(list,&d,0);
17     seqlist_insert(list,&e,0);
18 
19     for(i=0;i<seqlist_length(list);i++)
20     {
21         int *p=(int*)seqlist_get(list,i);
22         printf("%d\n",*p);
23     }
24     printf("\n");
25     seqlist_delete(list,0);
26     for(i=0;i<seqlist_length(list);i++)
27     {
28         int *p=(int*)seqlist_get(list,i);
29         printf("%d\n",*p);
30     }
31     printf("\n");
32     int length=seqlist_length(list);
33     printf("%d\n",length);
34     printf("\n");
35     int capacity=seqlist_capacity(list);
36     printf("%d\n",capacity);
37 
38     seqlist_destroy(list);
39     return 0;
40 }