Deleting lnked list

Hi
I am trying to write simple linkedlist application. But i take error while trying to delete it

Code:

---

#include "stdafx.h"
#include <stdlib.h>
#include <iostream>
using namespace std;

typedef struct _Listmember
{
        int x;
        _Listmember *pNext;
}Listmember;

Listmember *head = NULL;


void Add(int x)
{
        Listmember *List = (Listmember *) malloc(sizeof(Listmember));
        List->x = x;
        List->pNext = head;
        head = List;
       
};
void Show()
{
        Listmember* pmember;
        for(pmember = head; pmember != NULL; pmember = pmember->pNext)
                cout << pmember->x << "\n";
};

void Delete()
{
Listmember* pmember;
        for(pmember = head; pmember != NULL; pmember = pmember->pNext)
        free(pmember);
       
}

int _tmain(int argc, _TCHAR* argv[])
{ 

        Add(1);
        Add(2);
        Add(3);
        Show();
        Delete();
        return 0;
}

---

Why is that code wrong?
How must i delete the linkedlist?
Thanks

if you are writing on C++ - you should use new/delete

If you on C - do not use <iostream> - use stdio.h with printf

Code:

---

for(pmember = head; pmember != NULL; pmember = pmember->pNext)
        free(pmember);

---

You do pmember->pNext after free - it is not safe
Do something like

Code:

---

while(head)
{
  Listmember *temp = head->next;
  free(head);
  head = temp;
}

---

Hmm ok.
Thank you vart.