StackOnList.cpp

#include "StackOnList.h"
#include <iostream>
#include <string>
using namespace std;

void StackOnList::push(int elem) {
    if (head == NULL)
    {
        Node* temp = new Node;
        temp->info = elem;
        temp->next = NULL;
        head = temp;
    }
    else
    {
        Node* temp = new Node;
        temp->info = elem;
        temp->next = head;
        head = temp;
    }
    m_quantity++;
}

void StackOnList::pop() {
    head = head->next;
    m_quantity--;
}

int StackOnList::peek() {
    return head->info;
}

bool StackOnList::isEmpty() {
    if (getQuantity() == 0) {
        return true;
    }
    return false;
}

void StackOnList::makeEmpty() {
    while (!isEmpty()) {
        pop();
    }
}

int StackOnList::getQuantity() {
    return m_quantity;
}