title: Using pointer as a template parameter
body: <p>In C++ I can do something like this:</p>
  <pre><code>template &lt;typename T, T* Ptr&gt;
  class MyClass {};
  </code></pre>
  <p>I have two questions:</p>
  <ol>
  <li><p>Where can I get a pointer other than nullptr in compile time?</p>
  </li>
  <li><p>How can I use this language feature? Of course, it would be interesting for practical cases, but it seems that this is a rather specific possibility, so an artificial example will also be suitable.</p>
  </li>
  </ol>