Internal working of this code...

Well consider i have a structure as follows

Code:

---

struct list{
 
struct list *next[5];
 
};

---

now while adding new elements...

previous->next[i]=new struct list;


this will create a list and so on.. beofre the above statement previous->next[i] was equal to NULL... now consider I have a function as follows

Code:

---


void function(struct *list)
{
//this function will further build a tree below list
 
list=new struct list //and so on
list->next[i]=new struct list; //etc etc etc
}
 
 
now calling where previous->next[i] is NULL
 
function(previous->next[i]);

---

when the above is done the previous node holds no information of the tree below unless I pass the function with a pointer already pointing to a structure... why is this.... I know i have not explained things clearly but feel free to ask questions :):)........

One solution is a pointer to a pointer.

void function(Structlist **pPreviousList)
{}

Kuphryn