title: What does a double backtick/grave (``) mean in c++ documentation?
body: <p>I am learning c++ and am reading <a href="http://c-faq.com/decl/spiral.anderson.html" rel="nofollow">this</a> from c-faq.com. Frequently, when referring to an unknown  element, the author will preface the name of the element with ``.</p>
  
  <p>What does that mean? I'm vaguely familiar with * or &amp; before a variable or function but not ``. </p>
  
  <p>Thanks!</p>