title: Different format of __DATE__ macro
body: <p>C has a predefined macro <code>__DATE__</code>, that shows the date of the compiled source file .<br>
  The date is displayed in the format <strong>"Mmm dd yyyy"</strong> .</p>
  
  <p>Is there any way to be formatted this date, using macros ?<br>
  In this format <strong>"yyyy Mmm dd"</strong>.</p>
  
  <p>Instead of being :</p>
  
  <blockquote>
    <p>Jul 19 2013</p>
  </blockquote>
  
  <p>Should be :</p>
  
  <blockquote>
    <p>2013 Jul 19</p>
  </blockquote>