title: Where is <regex> in Visual Studio 2005?
body: <p>I am back-porting a VS2010 project to VS2005 (don't ask why..).  In VS2010 the following works just fine:</p>
  
  <pre><code>#include &lt;regex&gt;
  </code></pre>
  
  <p>But in VS2005 its a fatal error:</p>
  
  <pre><code>fatal error C1083: Cannot open include file: 'regex': No such file or directory
  </code></pre>
  
  <p>Any ideas?</p>
  
  <p>EDIT: I should add that I am a C++ / VS newbie.  If  is simply not part of VS2005, I also welcome suggestions on what to use as a regex library.</p>
  
  <p>Thanks!</p>