e same, and the bits in
<tt>[size(),num_bits)</tt> are all set to <tt>value</tt>. If
<tt>num_bits &lt; size()</tt> then the bits in the range
<tt>[0,num_bits)</tt> stay the same (and the remaining bits are
discarded).<br />
 <b>Postconditions:</b> <tt>this-&gt;size() == num_bits</tt>.<br />
 <b>Throws:</b> An allocation error if memory is exhausted
(<tt>std::bad_alloc</tt> if
<tt>Allocator=std::allocator</tt>).<br />


<hr />
<pre>
void <a id="clear">clear</a>()
</pre>

<b>Effects:</b> The size of the bitse