id="count">count</a>() const
</pre>

<b>Returns:</b> the number of bits in this bitset that are
set.<br />
<b>Throws:</b> nothing.

<hr />
<pre>
bool <a id="all">all</a>() const
</pre>

<b>Returns:</b> <tt>true</tt> if all bits in this bitset are set or
if <tt>size() == 0</tt>, and otherwise returns <tt>false</tt>.<br />
<b>Throws:</b> nothing.

<hr />
<pre>
bool <a id="any">any</a>() const
</pre>

<b>Returns:</b> <tt>true</tt> if any bits in this bitset are set,
and otherwise returns <tt>false</tt>.<br />
