title: Best C++ Code Formatter/Beautifier
body: <p>There are lots of source code formatting tools out there.  Which ones work best for C++?</p>
  
  <p>I'm interested in command-line tools or other things that can be automatically run when checking code in/out, preferably without needing to launch an editor or IDE.</p>
  
  <p>(If you see the one you like already listed as an answer, vote it up.  If it's not there, add it.)</p>