以及基本功能的实现
list_ d_link_c.h
#ifndef _LIST_D_LINK_C_
#define _LIST_D_LINK_C_
#include<iostream>
#include<assert.h>
using namespace std;
#define ElemType int
typedef struct Node
{
ElemType data;
struct Node *prio;
struct Node *next;
}Node,*PNode;
typedef struct List
{
PNode first;
PNode last;
size_t size;
}List;
void Initlist(List *list);
void push_back(List *list,ElemType x);
void push_front(List *list,ElemType x);
bool pop_back(List *list);
bool pop_front(List *list);
void show_seqlist(List *list);
bool delete_val(List *list,ElemType key);
int length(List *list);
Node* find(List *list,ElemType key);
void clear(List *list);
void destroy(List *list);
bool next(List *list,ElemType key);
bool prio(List *list,ElemType key);
bool resver(List *list);
bool sort(List *list);//升序
bool modify(List *list,ElemType key);
bool insert_val(List *list,ElemType key);
#endif //_LIST_D_LINK_C_#include"Seqlist_ d_link_c.h"
void Initlist(List *list)
{
Node *s = (Node *)malloc(sizeof(Node));
assert(s != NULL);
list->first = list->last = s;
list->last->next = list->first;
list->first->prio = list->last;
list->size = 0;
}
void push_back(List *list,ElemType x)
{
Node *p = (Node *)malloc(sizeof(Node));
assert(p != NULL);
p->data = x;
p->next = list->first;
list->first->prio = p;
list->last->next = p;
p->prio = list->last;
list->last = p;
list->size++;
}
void push_front(List *list,ElemType x)
{
Node *p = (Node *)malloc(sizeof(Node));
assert(p != NULL);
p->data = x;
if(list->size == 0)
{
list->last = p;
}
p->next = list->first->next;
p->prio = list->first;
list->first->next = p;
list->size++;
}
bool pop_back(List *list)
{
Node *p = list->last;
if(list->size == 0)
{
cout<<"list is NULL!"<<endl;
return false;
}
if(list->size == 1)
{
list->last = list->first;
}
p->prio->next = list->first;
list->first->prio = p->prio;
free(p);
list->last = list->first->prio;
list->size--;
return true;
}
bool pop_front(List *list)
{
Node *p = list->first->next;
if(list->size ==0)
{
cout<<"the list is null!"<<endl;
return false;
}
if(list->size == 1)
{
list->last = list->first;
//list->last->next = list->first;
}
list->first->next = p->next;
p->next->prio = list->first;
free(p);
list->size--;
return true;
}
void show_seqlist(List *list)
{
Node *p = list->first->next;
while(p!= list->first)
{
cout<<p->data<<"-->";
p = p->next;
}
cout<<"Nul"<<endl;
}
int length(List *list)
{
return list->size;
}
Node* find(List *list,ElemType key)
{
Node *p = list->first->next;
while(p != list->first && p->data != key)
p = p->next;
if(p == list->first)
return NULL;
return p;
}
void clear(List *list)
{
Node *p = list->first->next;
while(p != list->first)
{
list->first->next = p->next;
free(p);
p = list->first->next;
}
list->last = list->first;
list->size = 0;
}
void destroy(List *list)
{
clear(list);
free(list->first);
list->first = list->last = NULL;
}
bool next(List *list,ElemType key)
{
Node *p = find(list,key);
if(p == NULL)
return false;
else if(p == list->last)
cout<<key<<"'s next is "<<list->first->next->data<<endl;
else
cout<<key<<"'s next is "<<p->next->data<<endl;
return true;
}
bool prio(List *list,ElemType key)
{
Node *p = find(list,key);
if(p == NULL)
return false;
else if(p == list->first->next)
cout<<key<<"'s prio is "<<list->last->data<<endl;
else
cout<<key<<"'s prio is "<<p->prio->data<<endl;
return true;
}
bool delete_val(List *list,ElemType key)
{
Node *p = find(list,key);
if(p == NULL)
return false;
p->prio->next = p->next;
p->next->prio = p->prio;
if(p == list->last)
list->last = p->prio;
free(p);
list->size--;
return true;
}
bool resver(List *list)
{
Node *p = list->first->next;
Node *q = p->next;
p->next = list->first;
list->first->prio = p;
list->last = p;
if(list->size <= 1)
return false;
while(q != list->first)
{
p = q;
q = q->next;
p->next = list->first->next;
p->prio = list->first;
list->first->next = p;
p->next->prio = p;
}
return true;
}
bool sort(List *list)//升序
{
Node *p = list->first->next;
Node *q = p->next;
p->next = list->first;
list->first->prio = p;
list->last = p;
if(list->size <= 1)
return false;
list->size = 1;//设定初始长度为1
while(q != list->first)
{
p = q;
q = q->next;
insert_val(list,p->data);
free(p);
}
return true;
}
bool modify(List *list,ElemType key)
{
Node *p = find(list,key);
if(p == NULL)
return false;
cout<<"please input a new item:";
cin>>key;
p->data = key;
return true;
}
bool insert_val(List *list,ElemType key)
{
Node *p = find(list,key);
if(p != NULL)
return false;
Node *q = (Node *)malloc(sizeof(Node));
q->data = key;
p = list->first;
while(p != list->last)
{
if(p->next->data > key)
break;
else
p = p->next;
}
q->next = p->next;
p->next->prio = q;
q->prio = p;
p->next = q;
if(p == list->last)
list->last = q;
list->size++;
return true;
}#include"Seqlist_ d_link_c.h"
void main (void)
{
List mylist;
Initlist(&mylist);
int select = 1;
int item;
while(select)
{
cout<<"***********************************"<<endl;
cout<<"* [1] push_back [2] push_front *"<<endl;
cout<<"* [3] show_seqlist[0] quit_system *"<<endl;
cout<<"* [4] pop_back [5] pop_front *"<<endl;
cout<<"* [6] delete_val [7] insert_val *"<<endl;
cout<<"* [08] modify [09]clear *"<<endl;
cout<<"* [10] destroy [11]sort *"<<endl;
cout<<"* [12] resver [13]length *"<<endl;
cout<<"* [14] next [15]prio *"<<endl;
cout<<"***********************************"<<endl;
cout<<"请选择：";
cin>>select;
switch(select)
{
case 1:
cout<<"请输入要插入的数据(-1结束):>";
while(cin>>item,item!=-1)
{
push_back(&mylist,item);
}
break;
case 2:
cout<<"请输入要插入的数据(-1结束):>";
while(cin>>item,item!=-1)
{
push_front(&mylist,item);
}
break;
case 3:
show_seqlist(&mylist);
break;
case 4:
pop_back(&mylist);
break;
case 5:
pop_front(&mylist);
break;
case 6:
cout<<"please input a value:";
cin>>item;
delete_val(&mylist,item);
break;
case 7:
cout<<"please input a value:";
cin>>item;
insert_val(&mylist,item);
break;
case 8:
cout<<"please input a value:";
cin>>item;
modify(&mylist,item);
break;
case 9:
clear(&mylist);
break;
case 10:
destroy(&mylist);
select = 0;
break;
case 11:
sort(&mylist);
break;
case 12:
resver(&mylist);
break;
case 13:
cout<<"length is "<<length(&mylist)<<endl;
break;
case 14:
cout<<"please input a value:";
cin>>item;
next(&mylist,item);
break;
case 15:
cout<<"please input a value:";
cin>>item;
prio(&mylist,item);
break;
default:
select = 0;
break;
}
}
}
原文：http://blog.csdn.net/chenmengmengx/article/details/45674765