string arrays and pointers

[Noor Alsawadi]

Hi, umm i actually have a problem in one of my labs.
I am trying to make a library, where the user initializes multiple books(Object bookType), and their names are saved into a dynamic array called books[1]. i was trying to use pointers to expand the array's size each time a new book is defined.
while running my compiler breaks and gives me an error that "memory access violation" , i do realize that the mistake is because a string doesnt have a consistent size. So how can i know what size each of the names occupies in memory so that i can move that number of locations in memory ????

my code is :

// pb is pointer of books
//NOfB is number of books

void bookType::setName(string n)
{    name = n;
    cout << n;
    system("pause");
    *(pb+NOfB)= n;
    NOfB++;
    system("pause");
 
}

thank you so much in advance :)

[whodgson]

Try using a vector instead of an array. load it`s elements with 'push_back'