i don't know if i should post it here or in C++ , but please help me, i came into Assertion failure during running this program, and i really don't know why, hope you guys can help, thanks a lot ^:)^
The program is to copy a linked list from another, the Copy function may look complicated because i'm not experienced enough to simplify it.. Without the destructor, the program runs fine..
#include <iostream.h>
struct node
{
int data ;
node * next ;
};
class list
{
private:
node *head ;
public:
list() ;
[B]//~list() ;[/B]
node* Add(node *h , int d) ;
node* Copy(node *& res , node * copy) ;
void Input() ;
void Display() ;
node* GetHead() ;
void AssignHead(node *h) ;
};
list::list()
{
head = NULL ;
}
[B]/*list::~list()
{
while(head)
{
node *current = head->next ;
delete head ;
head = current ;
}
}*/[/B]
node * list::GetHead()
{
return head ;
}
void list::AssignHead(node *h)
{
head = h ;
}
node * list::Add(node *h , int d)
{
if ( !h )
{
h = new node ;
h->data = d ;
h->next = NULL ;
}
else
h->next = Add(h->next , d) ;
return h ;
}
void list::Input()
{
int n ;
int d ;
cout << "How many intergers to input: " ;
cin >> n ;
for ( int i = 0 ; i < n ; ++i )
{
cout << "Interger #" << i+1 << ", please enter: " ;
cin >> d ;
head = Add(head,d) ;
}
}
void list::Display()
{
node * current = head ;
while (current != NULL)
{
cout << current->data << " " ;
current = current->next ;
}
}
node * list::Copy(node *& res , node * copy)
{
if (copy)
{
res = copy ;
Copy(res->next,copy->next) ;
}
return res ;
}
int main()
{
list integer , a ;
integer.Input() ;
integer.Display() ;
cout << endl ;
//a.Input() ;
//a.Display() ;
node *res = NULL ;
a.AssignHead(a.Copy(res , integer.GetHead())) ;
a.Display() ;
return 0 ;
}