);
BOOST_STATIC_ASSERT(size&lt;result3&gt;::type::value == 2);
<p>
BOOST_MPL_ASSERT_IS_SAME(<a href="../Reference/back.html">back</a>&lt;result2&gt;::type, long);
BOOST_MPL_ASSERT_IS_SAME(back&lt;result3&gt;::type, int);
</pre>
<p>
<h3>Notes</h3>
<p>
[<a name="1">1</a>]  The algorithm is provided only if the sequence can meet the stated complexity requirements.<br>
<p>
<h3>See also</h3>
<p>
<a href="../Extensible_Sequence.html">Extensible Sequence</a>, <code><a href="../Reference/erase.html">erase</a></code