r regression tests (<a href="http://boost.sourceforge.net/regression-logs/inspection_report.html">http://boost.sourceforge.net/regression-logs</a>) 
  to verify that errors are actively being reduced or accounted for on key 
  platforms and compilers.<br>
&nbsp;<ul>
    <li>Boost errors are being actively worked on by library maintainers.</li>
    <li>Compiler or standard library errors are at least identified, and 
    preferably reported to the supplier.</li>
    <li>No errors remain uninvestigated or unc