nt of the desired bit-masking
			value.</td>
	</tr>
	<tr>
		<td><code>sig_bits_fast</code></td>
		<td>A <code>fast</code> analog of <code>sig_bits</code>.</td>
	</tr>
	<tr>
		<td><code>bit_count</code></td>
		<td>The value of the template parameter, in case its needed from
			a renamed instantiation of the class template.</td>
	</tr>
</table>

<p><strong>Implementation Note</strong><br>
When <code>Bits</code> is the exact size of a built-in unsigned type,
the implementation has to change to prevent undefine