Help, Assertion problem!!! :(
 

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() ;

        //~list() ;

        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 ;

}



/*list::~list()

{

        while(head)

        {

                node *current = head->next ;

                delete head ;

                head = current ; 

        }

}*/



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 ;

}

Re: Help, Assertion problem!!! :(
 

Post your thread on C++ section

Re: Help, Assertion problem!!! :(
 

thanks, i posted it in C++ section, please lock this topic, sori for wrong post.

Re: Help, Assertion problem!!! :(
 

don't mind it. Always post in current section friend :). btw i cannot lock this thread. Moderator will do this.