_PP_WHILE</b> iteration.&nbsp;
			</dd>
			<dt>x</dt>
			<dd>
				The minuend of the operation.&nbsp;
				Valid values range from <i>0</i> to <b>BOOST_PP_LIMIT_MAG</b>.
			</dd>
			<dt>y</dt>
			<dd>
				The subtrahend of the operation.&nbsp;
				Valid values range from <i>0</i> to <b>BOOST_PP_LIMIT_MAG</b>.
			</dd>
		</dl>
	<h4>Remarks</h4>
		<div>
			If the difference between <i>x</i> and <i>y</i> is less than <i>0</i>, the result is saturated to <i>0</i>.
		</div>
	<h4>See Also</h4>
		<ul>
			<li><a hre