title: What does b=a->b means in a class of list?
body: <p>In a class of list what does b=a->b means?</p>
  
  <p>The example i'm reading is a destructor to the list, and in its "while" cycle it has this operation.</p>
  
  <pre><code>Clistint::~Clistint(){ 
    Clist *actual, *next; 
    if(head!=NULL){ 
      actual=head; 
      while(actual!=NULL){ 
        next=actual-&gt;next; 
        delete actual; 
        actual=next; 
      } 
    } 
  }
  </code></pre>