title: How to iterate over a std::tuple in C++ 11
body: <p>I have made the following tuple:</p>
  
  <p>I want to know how should I iterate over it? There is <code>tupl_size()</code>, but reading the documentation, I didn't get how to utilize it. Also I have search SO, but questions seem to be around <code>Boost::tuple</code> .</p>
  
  <pre><code>auto some = make_tuple("I am good", 255, 2.1);
  </code></pre>