//extern const int LinkArray=10;
#include"iostream"
#include"stdlib.h"
#include"Link.h"
using namespace std;
//Node類的實現
Node::Node(const int & item ,Node * nextptr):data(item),next(nextptr){}
Node::~Node()
{
	cout<<"The node has been deleted!"<<endl;
}
Node * Node::NextNode()const
{
	return next;
}
void Node::InsertAfter(Node * p)
{
	 p->next=next;
	 next=p;
}
Node * Node::DeleteAfter()
{
	if(next=NULL)
		return NULL;
	Node * temp;
	temp=next;
	next=temp->next;
	return temp;
}

//Link類的實現
Node * Link::GetNode(const int & item, Node * nextptr)
{
	Node * newnode;
	newnode= new Node(item,nextptr);
	if(newnode==NULL)
	{
		cout<<"Memory allocation faliure!"<<endl;
//		exit(1);
	}
	return newnode;
}
Link::Link(int a[])
{
	head=rear=front=currptr=prevptr=NULL;
    for(int i=volume-1;i>=0;i--)
	{
      InsertFront(a[i]);
	}
/*  cout<<"Please input the number of the Link you want to create:"<<endl;
    int item;i
	cin>>item;
	cout<<"Please input the data  of the node in the link:"<<endl;
	int temp;
	cin<<temp;
	head=new Node(temp);
	for(int i=1;i<item;i++)
	{
		cin<<temp;
		head->InsertAfter(new Node(temp));
	}
*/
/*  cout<<"Please input the number of the Link you want to create:"<<endl;
	cin>>size;
	for(int i=0;i<size;i++)
	InsertFront();
*/
}
Link::~Link()
{
	cout<<"The link has been deleted!"<<endl;
}
void Link::InsertFront(const int & item)
{
//	cout<<"Please input the data you want to insert in the head:"<<endl;
//	int  temp;
//	cin>>temp;
    head=GetNode(item,head);
}
void Link::InsertRear()
{
	cout<<"Please input the number you want to insert in the rear:"<<endl;
    int temp; 
	cin>>temp;
    currptr=head;
	if(head==NULL)
		InsertFront(temp);
	else
	{
	
        while(currptr->NextNode()!=NULL)
			currptr=currptr->NextNode();
		currptr->InsertAfter(GetNode(temp));
	}
}
void Link::PrintList()
{
    int count=0;
	currptr=head;
	while(currptr!=NULL)
	{
       cout<<currptr->data<<" ";
	   count++;
	   if(count%5==0)
		   cout<<endl;
	   currptr=currptr->NextNode();
	   }
}