ight: 0cm; margin-bottom: 0cm"><A HREF="#sect2" NAME="toc2">Description</A>
		</BLOCKQUOTE>
	<LI><BLOCKQUOTE STYLE="margin-right: 0cm; margin-bottom: 0cm"><A HREF="#sect3" NAME="toc3">Cancellation</A>
		</BLOCKQUOTE>
	<LI><BLOCKQUOTE STYLE="margin-right: 0cm; margin-bottom: 0cm"><A HREF="#sect4" NAME="toc4">Async-signal
	Safety</A> 
	</BLOCKQUOTE>
	<LI><BLOCKQUOTE STYLE="margin-right: 0cm; margin-bottom: 0cm"><A HREF="#sect5" NAME="toc5">Return
	Value</A> 
	</BLOCKQUOTE>
	<LI><BLOCKQUOTE STYLE="margin-right