string - C++ Linked List Inserting Char by Char of a word -

i having trouble homework assignment passing object has string inserted linked list of characters (like h-e-l-l-o) , passing list object.

i can first word in list (see function insertword), if want put second word (insert), don't know how to. here code.

i feel it's simple keep missing.

struct character {     string symbol;     character *next; };  class word { public:     word();     word::~word();     void insertword(const string&);     void insert(const word&, int slot);     void remove(const string&);  private:     character *front;     character *back;     int count; };  void word::insertword(const string& key) {               int ln = key.length();     (int n = 0; n < ln; n++) {         if (front == 0) {             front = new character;             front->symbol = key[n];             front->next = 0;             = front;         } else {             character *p = new character;              p->symbol = key[n];             p->next = front;             front = p;         }     } }  void word::insertinto(const word &key, int slot) {     if (slot = 0 || 1) {             if (front == 0) {             front->symbol = key.p; //this lose             front->next = 0;             = front;         } else {             p->symbol = key[n];             p->next = front;             front = p;         }     } }  int main() {     word a;     word b;     a.insertword("45352");     b.insertword("yzthrh");     a.insertinto(b,1);      return 0; }