NULL in comparison

[billycro]

In my code below, assuming l was either initially created or was initially NULL,

  void createList(LinkedList* l){
    delete l;
    cout<<"\nWhat will you name the new list?\n";
    std::string n;
    cin>>n;
    l = new LinkedList(n);
}

\if I were to do the comparison l==null shouldnt this yield false following this code bit? Because its coming up true, and I'm not entirely sure why. Any eyeopening words would be most appreciated.

[JLBorges]

//void createList(LinkedList* l){ // 'l' is passed by value; the function operates on a local copy

void createList( LinkedList*& l ){ // instead, pass 'l' by reference