title: Default values to bitfield elements
body: <p>In C++11 one can do</p>
  <pre><code>struct S {int i = 42;};
  </code></pre>
  <p>and if one forgets to initialize the member <code>i</code> it
  gets default initialized to 42. I Just tried this with
  bitfields as</p>
  <pre><code>struct S {int i = 42 : 5;};
  </code></pre>
  <p>and am getting</p>
  <blockquote>
  <p>error: expected ';' before ':' token</p>
  </blockquote>
  <p>Does this feature exist for bitfield members and if so, how do I use it?</p>