title: What's va_arg() in C++11 variadic template?
body: <p>I've read some articles about this new C++11 feature but I didn't understand all stuff (I'm new to C++). How do I access a specific argument like I can do using <code>va_arg</code> from <code>stdarg.h</code> in C?</p>
  
  <pre><code>template &lt;typename ... Args&gt;
  void f(Args ... args)
  {
      for(size_t i = 0; i &lt; sizeof ...(args); i++)
      {
          // obviously, args...[i] didn't work...
      }
  }
  </code></pre>