">thread safe</a> on 
				Windows, Linux, and platforms that support pthreads. See the <a href="../../boost/detail/atomic_count.hpp">
					&lt;boost/detail/atomic_count.hpp&gt;</a>
			file for details
			<li>
				The new shared_ptr will always delete the object using the pointer it was 
				originally constructed with. This prevents subtle problems that could happen if 
				the last <b>shared_ptr</b> was a pointer to a sub-object of a class that did 
				not have a virtual destructor.</li>
		</ul>
		<h2>Imp