can someone help he fix these codes please! I just need to create a copy of this linked list RECURSIVELY.

I keep getting a segmentation fault.

// This is the header file (list.h)

#include #include #include using namespace std; struct node { int data; //some questions are a char * data; node * next; };

class list { public: //These functions are already written for you list(); //supplied ~list(); //supplied void build(); //supplied void display(); //supplied /* *****************YOUR TURN! ******************************** */ //Write your function prototype here: void duplicate(node *& newHead); void duplicate(node * original, node *& newHead);

private: //notice there is both a head and a tail! node * head; node * tail; }; *************************************************************************************************************************************************

// This is the cpp file (function.cpp)

#include "list.h" void list::duplicate(node *& newHead) { node * original; if(head == NULL) return ; else duplicate(original, newHead); }

void list::duplicate(node * original, node *& newHead) { newHead = new node; newHead->data = original->data; newHead->next = original->next; duplicate(original->next, newHead->next); }