C++ Link List error going to next node -

i need read words file , put link list.
have these codes here(below) inserting link list part.
vector contains words i've read file

    list( vector <string> &v )     {         listnode *cur = head;          ( int = 0 ; < v.size() ; i++ )         {             //cout << v[i] << endl;              listnode *newnode = new listnode;              newnode->item = v[i];              if ( == 0 )      // first node             {                 newnode->next = null;                 head = newnode;             }              else               // insert node             {                 listnode *prev = cur;                 newnode->next = prev->next;                 prev->next = newnode;             }              cout << cur->item << endl;              system("pause");         }     } 

my problem here node doesn't go next node after inserting word node.
tried put cur = cur->next; on between cout << cur->item << endl; , system("pause");
program gives me error

you not updating child node correctly. try this, in else block.

else  {    listnode *prev = cur;    prev->next = newnode; } cur = newnode; 

it can rewritten simpler. first try rectify existing program , go efficient one. hope helps !