How do I return the data in the last node from the RemoveTail function? Currently I have something like below.This is a basic doubly linked list.
class List;
class Node {
Node* next;
Node* prev;
void* data;
public:
Link( void* pData ) :
next( 0 ), prev( 0 ), data( pData )
{}
friend class List;
};
class List {
Node* head;
Node* tail;
public:
List() :
head( 0 ), tail( 0 )
{}
void* RemoveTail();
//more funtions...
};
void List::RemoveTail() //removes last node & returns pointer to object contained in it
{
if(tail == head)
{
void* data = tail->data; //This didn't work
delete tail;
head = tail = 0;
return data;
}
else
{
//code
}
}The void* data = tail->data; isn't working. Is there any other way to do this?
