title: Create N-element constexpr array in C++11
body: <p>Hello i'm learning C++11, I'm wondering how to make a constexpr 0 to n array, for example:</p>
  
  <pre><code>n = 5;
  
  int array[] = {0 ... n};
  </code></pre>
  
  <p>so array may be <code>{0, 1, 2, 3, 4, 5}</code></p>