title: How do I count the number of zero bits in an integer?
body: <p>How would i go about finding the number of 'zero' bits in C++. 
  Suppose I have an integer;</p>
  
  <pre><code>int value = 276; 
  </code></pre>
  
  <p>For which I have the bits 100010100, but how do I count the zeros?</p>