moving the
elements of <code>x</code> and copying its internal objects (those specified
in <code>ctor_args_list</code> and the allocator.)<br>
<b>Postconditions:</b> If <code>x==y</code> just
before the movement, <code>*this==y</code>. The order on every index
of the <code>multi_index_container</code> is preserved as well.<br>
<b>Complexity:</b> Constant.
</blockquote>

<code>~multi_index_container()</code>
<blockquote>
<b>Effects:</b> Destroys the <code>multi_index_container</code> and all the elements
con