#ifndef GLIST_CPP
#define GLIST_CPP

#include <iostream.h>
#include <string.h>
#include "string.h"
void list :: Clear()
{
 block *tmp,*tmp1;
 for( tmp=root,tmp1=root->next;tmp1!=NULL;tmp=tmp1,tmp1=tmp1->next)
   delete tmp;
 delete tmp;
 size=0;
}

list::list ()
{
  root=tail=NULL;  size=0;
}

list::~list ()
{
 block *tmp,*tmp1;

 for( tmp=root,tmp1=root->next;tmp1!=NULL;tmp=tmp1,tmp1=tmp1->next)
   delete tmp;
 delete tmp;
 size=0;
}

void list::AddToEnd(block *Nblock)
{
  if(root==NULL)
      root= tail=Nblock;
  else
  {
     tail->AddAfter(Nblock);
     tail=Nblock;
  }
  size++;
}

void list ::AddToFront(block* Nblock)
{
  if(root==NULL)
      root= tail=Nblock;
  else
  {
     root->AddBefore(Nblock);
     root=Nblock;
  }
 size++;

}

int list::del(){}

void list :: print()
{
  block  *tmp;
  for( tmp =root; tmp!= NULL; tmp=tmp->next)
    tmp->show();
}

void list:: print_i(int i)
{
 int k;
 block *tmp;
 tmp=root;

 for (k=0; k<i-1; k++)
      tmp=tmp->next;

 tmp->show();
// delete tmp ;
}


block* list::return_i(int i)
{
 int k;
 block *tmp;
 tmp=root;

 for (k=0; k<i-1; k++)
  {
   tmp=tmp->next;
   if(tmp==NULL) break;
  }

 return tmp;
}

#endif