text: #include "lists.h"
  #include <stddef.h>
  /**
   * list_len - length of h
   * @h: linked list
   * Return: length of h
   */
  size_t list_len(const list_t *h)
  {
  	unsigned int count = 0;
  
  	while (h)
  	{
  		h = h->next;
  		count++;
  	}
  	return (count);
  }
  