C++ :: Take Numbers And Add One By One As Integers In Linked List

Let's say that in a txt file named hot.txt, I have this:

12,23,32

And with ifstream I want to take those number, adding one by one as integers in a linked list.

ifstream myList;
char* p= new char;
cin>>p;
myList.open(p);

if(myList.is_open()) {
char* x =new char;

[Code] ....

I know this part is quite wrong :

myList.get(x,256,','); // dafaq
int num=atoi(x);
list->addOrdered(num);

What I wanted to do is to stop before each comma and take that character and store it in the linked list and continue until the end of the file, but I couldnt.