can someone explain me how it does not swap my nodes?
void Library::sortList()
{
book *head = NULL;
book *current = head;
book *newBook;
current = head;
ifstream infile;
infile.open("LibraryData.txt");
if (infile.is_open())
{
while (!infile.eof())
{
newBook = new book;
infile.ignore(100,'#');
getline(infile,newBook->ISBN);
infile.ignore(100,'#');
getline(infile, newBook->author);
infile.ignore(100,'#');
getline(infile, newBook->title);
infile.ignore(100,'#');
getline(infile, newBook->publisher);
infile.ignore(100,'#');
getline(infile, newBook->cpyryt);
infile >> newBook->quantity;
infile >> newBook->qborrowed;
newBook->link = NULL;
if (head == NULL)
{
head = newBook;
current = newBook;
}
else
{
current->link = newBook;
current = newBook;
}
}
}
infile.close();
book *p,*q = current->link;
current=head;
while(current->link->link!=NULL)
{
if(current->link > current->link->link)
{
p = current;
current = q;
q = p;
}
current = current->link;
};
current =head;
while (current != NULL)
{
cout << setw(20) << current->ISBN << "\t" << current->title << endl;
cout << "\t\t\t" << current->author << endl;
cout << "\t\t\t" << current->publisher << endl;
cout << "\t\t\t" << current->cpyryt << endl;
if(current->quantity==0 && current->qborrowed==1)
cout<<"\n\t\t\tStatus: BORROWED"<<endl;
else if(current->quantity==0 && current->qborrowed==0)
cout<<"\n\t\t\tStatus: REMOVED"<<endl;
else if(current->quantity==1 && current->qborrowed==0)
cout<<"\n\t\t\tStatus: AVAILABLE"<<endl;
cout << "\n--------------------------------------------------------------------------------" << endl;
current = current->link;
}
};
if i change
if(current->link > current->link->link)
into
if(current->author > current->link->author)
it does not run display where if it swaps or not and stays into a blank console
