void library::delete_book(unsigned int index)
{

        int i=0;
        vector<book>::iterator it;
        it = booksObj.begin() + index -1;
        cout << "index = " << index <<endl;

        for(;i!=get_num_books();i++)
        cout << booksObj[i].get_bookTitle() <<endl;
        cout << "---------------------\n";
        if (booksObj.size() >= index) // warning
                booksObj.erase(booksObj.begin() +index-1); //error!
        else                          //this always delete the last element
                cout << "ERROR: Out of Bound Index\n";

        for(i=0;i!=get_num_books();i++)
        cout << booksObj[i].get_bookTitle() <<endl;
        cout << "---------------------\n";


}


main()
{
//....stuff
 for( x=0 ; x!=libObj.get_num_cards() ;x++)
                        if ( libObj.cardsObj[x].get_card_id() == card_removed )
                                {
                                        if (libObj.cardsObj[x].get_checked_book () != 0 )
                                           {
                                                cout << "Please return any books ";
                                                cout << "before removing this card"<<endl;
                                                libraryMainMenu(libObj);
                                           }
                                        libObj.delete_card(x);
                                        cout << "The card was removed from the database\n";
                                        libObj.updateDB();
                                        libraryMainMenu(libObj);
                                }
                        cout << "\ncard id number was not found\n";
                        cout << "going back to the main menu\n";
                        libraryMainMenu(libObj);
          }


//.... stuff
}

/*
OUTPUT
------
index = 6
The_Island
The_dragorn_tatu
The_Rapture
The_bible
quran
Fifty_Shades_of_Grey //this is suppose to be removed
Souls
Broken_Katy
Man_of_Luck
The_Witch's_Legacy
The_Edge_of_the_Wife
---------------------
The_Island
The_dragorn_tatu
The_Rapture
The_bible
quran
Fifty_Shades_of_Grey
Souls
Broken_Katy
Man_of_Luck
The_Witch's_Legacy
---------------------

**/