Как добавить функции добавления и удаления книг?

Как стоит реализовать функцию добавления книги? Пыталась сделать что-то на подобие этого, но не уверена что это правильный способ.

    //void AddBook(LIBRARY* books, int length, const LIBRARY& newBook) {
//    LIBRARY* temp = new LIBRARY[length + 1];
//        for (size_t i = 0; i < length; i++)
//        {
//            temp[i] = books[i];
//
//        }
//        delete[]  books;
//    temp[length] = newBook;
//    length++;
//    books = temp;
//    
//}

Сам код:

   #define _CRT_SECURE_NO_WARNINGS

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


struct LIBRARY {
    char bookname[40];
    char author[40];
    char publisher[20];
    char genre[20];

};

void print_one(LIBRARY p);
void print_all(LIBRARY* p);
LIBRARY EditBook(LIBRARY* p);
void searchAuth(LIBRARY* p);
void searchTitle(LIBRARY* p);
const int bookCount = 8;
int main()
{
    LIBRARY books[bookCount] = {
        {"Martin Eden", "Jack London", "Macmillan", "novel"},
        {"The Picture of Dorian Gray","Oscar Wilde","Belknap Press","fiction"},
        {"Harry Potter","JK Rowling","Bloomsbury","fantasy"},
        {"To Build a Fire","Jack London","Century","adventure"},
        {"No longer human","Dazai Osamu","  Chikuma Shobo","novel"},
        {"Metro 2033"," Dmitry Glukhovsky","Eksmo","Post-apocalyptic"},
        {"The Great Gatsby","Scott Fitzgerald","Charles Scribner's","tragedy"},
        {"The Green Mile","Stephen King","Signet Books","Dark Fantasy"}
    };
    int choice;
    int cursor = 0;
    bool isOn = true;
    while (isOn) {
        system("cls");
        PrintMenu(menu, menuLength, cursor);
        int key = _getch();
        if (key == KEYBOARD_KEYS::enter) {
            switch (cursor)
            {
            case 0: {
                print_all(books);
                _getch();
                break;

            }
            case 1: {
                EditBook(books);
                break;
            }
            case 2: {
                searchAuth(books);
                _getch();
                break;
            }
            case 3: {
                searchTitle(books);
                _getch();
                break;
            }
            case 4:
                
                /*  case 5:
                      isOn = false;
                      system("cls");
                      cout << "Goodbye!" << endl;
                      break;

                  }*/




            }
        }
        else if (key == KEYBOARD_KEYS::down) {
            if (cursor == menuLength - 1)
                cursor = 0;
            else
                cursor++;
        }
        else if (key == KEYBOARD_KEYS::up) {
            if (cursor == 0)
                cursor = menuLength - 1;
            else
                cursor--;
        }
        else if (key == KEYBOARD_KEYS::esc) {
            system("cls");
            break;
        }
    }
}//end of main


void print_one(LIBRARY p) {
    cout << '\t' << p.bookname << "\n" << "Author: " << p.author << "\n" << "Publisher: " << p.publisher;
    cout << "\n" << "Genre: " << p.genre << '\n' << endl;
}

void print_all(LIBRARY* p) {
    system("cls");
    for (int i = 0; i < bookCount; i++)
        print_one(p[i]);
}

LIBRARY EditBook(LIBRARY* p) {
    char title[40];
    char newtitle[40];
    char newAuth[40];
    char newPubl[20];
    char newGenre[20];
    cout << "Enter book title: \n";
    cin.getline(title, sizeof(title));
    for (size_t i = 0; i < bookCount; i++)
    {
        if (strcmp(p[i].bookname, title) == 0) {
            cout << "Enter new title: \n";
            cin >> newtitle;
            cout << "Enter new author: \n";
            cin >> newAuth;
            cout << "Enter new publisher: \n";
            cin >> newPubl;
            cout << "Enter new genre: \n";
            cin >> newGenre;
            strcpy(p[i].bookname, newtitle);
            strcpy(p[i].author, newAuth);
            strcpy(p[i].publisher, newPubl);
            strcpy(p[i].genre, newGenre);
            return p[i];
        }
    }
   
}

void searchAuth(LIBRARY* p) {
    char Author[40] = {};
    cout << "Enter search book author: \n";
    cin.getline(Author, sizeof(Author));
    for (size_t i = 0; i < bookCount; i++)
    {   
        if (strcmp(p[i].author, Author) == 0) {
            print_one(p[i]);
        }
    }

}
void searchTitle(LIBRARY* p) {
    char title[40];
    cout << "Enter search book title: \n";
    cin.getline(title, sizeof(title));
    for (size_t i = 0; i < bookCount; i++)
    {
        if (strcmp(p[i].bookname, title) == 0) {
            print_one(p[i]);
        }
    }

}