 <tt>test(n)</tt>.

<hr />
<pre>
unsigned long <a id="to_ulong">to_ulong</a>() const
</pre>

<b>Returns:</b> The numeric value corresponding to the bits in <tt>*this</tt>.
<br />
<b>Throws:</b> <tt>std::overflow_error</tt> if that value is too large to
be represented in an <tt>unsigned long</tt>, i.e. if <tt>*this</tt> has
any non-zero bit at a position <tt>&gt;=
std::numeric_limits&lt;unsigned long&gt;::digits</tt>.

<hr />
<pre>
bool <a id=
"is_subset_of">is_subset_of</a>(const dynamic_bitset&amp; a) cons