//first off, here's what the data file looks like

Title of a Book
First Last               //author's name
X                            //number of copies
XX.XX                     //price

//there's two classes, one holds all the data for a book, the other
// holds a dynamic array of books

class Book
{
  public:
    //bunch of accessor and set functions, only these two matter
    void print(ostream& outs);
    void fill(istream& ins);
  private:
    string title, author;
    int copies;
    double price;
};

typedef Book* Bookptr;

class Library
{
  public:
    //big three, accessor functions, sort, search, etc only these       
    //matter
    void print(ostream& outs);
    void fill(istream& ins, int& num);
  private:
    int size;
    Bookptr books;
    void resize(Bookptr b1, int& num);
};

//here's the implementation for the ones that matter:

void Book::print(ostream& outs)
{
  outs << title << endl << author << endl << copies << endl
          << price << endl;
}
void Book::fill(istream& ins)
{
  getline(ins,title);
  getline(ins,author);
  ins >> copies;
  ins >> price;
}

void Library::print(ostream& outs)
{
  for (int i = 0; i < size; i++)
    books[i].print(outs);
}

void Library::fill(istream& ins, int& num)
{
  books[num].fill(ins);
  if (num == (size - 1))
    resize(books,size);
}

Library::Library()
{
  size = 1;
  books = new Book[size];
}

void Library::resize(Bookptr& b1, int& num)
{
  Bookptr temp;

  temp = new Book[size + 1]
  for (int i=0; i < size; i++)
    temp[i] = b1[i];     //assignment operator is overloaded
  delete [] b1;
  b1 = temp;
  size++;
}
  
//basically I'm just testing these for now, the library fill function
//will eventually have a loop in it, but for now I need it to work
// here's what I'm doing in my main file

int main()
{
  ifstream fin;
  Library l1;  //default constructor sets size = 1
  int i = 0;

  fin.open("database.dat");

  l1.fill(fin, i);  //I'll eventually use a loop, but this is for testing
  i++;
  l1.fill(fin,i);

  fin.close();

  l1.print(cout);
 
  return 0;
}

void Book::fill(istream& ins)
{
  getline(ins,title);
  getline(ins,author);
  ins >> copies;
  ins >> price;
  ins.ignore(std::numeric_limits < int >::max(), '\n');
}