C++ how to initialize? [closed]

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add: I tried on the fun below anyone know what is the error?

struct node {

  string info;
  node *link;
  node() {
    info = "string";
    link = NULL;

  }

};

void fun( node &node) {

     if (node.link !=NULL) {  
      fun (node.link);
    }

}

I get an error message when I use it inside of my functions:

invalid initialization of reference of type ‘node&’ from expression of type ‘node*’

What is the proper way to initialize it?

---

You're trying to pass a pointer instead of an actual object reference. Simply dereference the pointer like this:

void fun( node &node) {

     if (node.link !=NULL) {  
      fun ( *(node.link) );
    }