C++ указатели и ссылки

VERSION 1: Нельзя удалять, т.к. ссылки-ссылки-ссылки
#include "stdafx.h"
#include <stdio.h>

struct stack {
    char data;
    stack *next;
};

int takeFromStack(stack *now, char *data) {
    *data = now->data;
    stack *del = now;
    if (now->next == NULL) {
        now = NULL;
        //delete del;
        return 0;
    }else {
        *now = *now->next;
        //delete del;
        return 1;
    }
}

int main() {
    // create new stack with 3 element's
    stack *top;
    top = new stack;
    top->data = '0';
    top->next = new stack;
    top->next->data = '1';
    top->next->next = NULL;
    top->next->next = new stack;
    top->next->next->data = '2';
    top->next->next->next = NULL;
    // my function
    char data;
    int result;
    result = takeFromStack(top, &data);
    printf("result:%d data:%c\n", result, data);
    result = takeFromStack(top, &data);
    printf("result:%d data:%c\n", result, data);
    result = takeFromStack(top, &data);
    printf("result:%d data:%c\n", result, data);
}
---------------------------------
VERSION 2:
#include "stdafx.h"
#include <stdio.h>

struct stack {
    char data;
    stack *next;
};

int takeFromStack(stack** now, char* data) {
    *data = (*now)->data;
    stack *del = *now;
    if ((*now)->next == NULL) {
        now = NULL;
        delete del;
        return 0;
    }else {
        //*now = *(now->next);
        *now = ((*now)->next);
        delete del;
        return 1;
    }
}

int main() {
    // create new stack with 3 element's
    stack* top;
    top = new stack;
    top->data = '0';
    top->next = new stack;
    top->next->data = '1';
    top->next->next = NULL;
    top->next->next = new stack;
    top->next->next->data = '2';
    top->next->next->next = NULL;
    // my function
    char data;
    int result;
    result = takeFromStack(&top, &data);
    printf("result:%d data:%c\n", result, data);
    result = takeFromStack(&top, &data);
    printf("result:%d data:%c\n", result, data);
    result = takeFromStack(&top, &data);
    printf("result:%d data:%c\n", result, data);
}