SLList.h

#pragma once
#include <sstream>

using namespace std;

template<typename T>
class SinglyLinkedList
{
public:
    SinglyLinkedList();
    SinglyLinkedList(const SinglyLinkedList& other);
    ~SinglyLinkedList();
    void push_back(T data);
    void push_front(T data);
    void pop_front();
    void clear();
    void build_empty(size_t sizeOfList);
    void insert(T data, int index);
    void removeAt(int index);
    void pop_back();
    int getSize() { return size; }
    T operator[] (const int index);
private:
    template<typename T>
    class Node
    {
    public:
        Node* pNext;
        T data;
        Node(T data = T(), Node* pNext = nullptr)
        {
            this->data = data;
            this->pNext = pNext;
        }
    };
    Node<T>* head;
    size_t size;
};

template<typename T>
void print(SinglyLinkedList<T> list);

template<typename T>
unsigned short allEntryOfElement(T element, SinglyLinkedList<T> list);

bool isFileCorrect(string path);

string readFilePath(bool flag);

template<typename T>
void getListFromFile(SinglyLinkedList<T>& list);

int readElement(int data);

void getListElementFromConsole(SinglyLinkedList<int>& list);

int getMainMenuItem(bool item5);

int readSizeOfEmptyList();

size_t readDeletableElementIndex(size_t index, SinglyLinkedList<int>& list);

string readFilePath();

void saveList(SinglyLinkedList<int>& list);

void selectMenuItem(int menuItem, SinglyLinkedList<int>& list);

void showMenu(SinglyLinkedList<int> list);

void selectMainMenuItem(int menuItem);

void showMainMenu();