list.c~

数据结构自己写的循环链表的实现

#include <stdio.h>
#include <stdlib.h>
#include "list.h"

void Destroy_List(List **li)
{
	List *temp,*end,*bak=NULL;
	temp = *li;
	end = *li;
	do
	{
		bak = temp;
		free(bak);
		temp = temp->next;
	}while(temp != end);
	*li = NULL;
}
void Add_Node(List **li,DataType data)
{
	List *new;
	new = malloc(sizeof(List));
	new->data = data;
	if((*li) == NULL)
	{
		new->next = new;
		*li = new;
	}
	else
	{
		new->next = (*li)->next;
		(*li)->next = new;
			
	}
}
void Print_List(List *li,PrintData p)
{
	List *temp;
	temp = li;
	if(!temp)
		return;
	while(1)
	{
		p(temp->data);
		temp = temp->next;
		if (li == temp)
			break; 
	}
}