traverse x number of nodes inorder

Question

I know this is probably a simple question but it's been a while since I've done any C programming. I am trying to perform an inorder traversal on x nodes where x is some number I pass to the function. My inorder function is calling itself recursively and for the life of my I cannot figure how to stop the traversal after its visited x nodes. Here is my inorder traversal function:

void inorder(node h)
 {

     if (h != NULL)
     {
        inorder(h->l);

        printf(" %d\n",h->item);

        inorder(h->r);
     }
      return;

 }

Any guidance is greatly appreciated.

Answer 1

Try this - should work for only x number of nodes visited (where the number of nodes visited are the nodes which are the candidates for being printed);

int inorder(node h, int x)
 {

     if (h != NULL && x > 0)
     {
        x = inorder(h->l, x);

        if (x > 0) {
           printf(" %d\n",h->item);
           x--;
        }
        if (h->r && x > 0)
           x = inorder(h->r, x);
     }
      return x;

 }

[EDIT: This code was corrected by @nhahtdh after some discussion on the definition of nodes visited and decrementing the value of x. The working test code can be seen here.