Dereferencing the void pointer in C++

Question

I\'m trying to implement a generic linked list. The struct for the node is as follows -

typedef struct node{
        void *data;
        node *next;      
};         


        

Answer 1

A void pointer cannot be dereferenced. You need to cast it to a suitable non-void pointer type. The question is about C++ so I suggest considering using templates to achieve your goal:

template  struct node
{
   T *data;
   node *next;      
};

then:

int n1=6;
node *temp = new node();
temp->data=&n1;

And finally:

cout << (*(temp->data));

Typecasting is possible, but that will be a C-style type-unsafe solution and not a C++ one.