le>
<p>
<h3>Complexity</h3>
<p>
Amortized constant time.
<p>
<h3>Example</h3>
<p>
<pre>
typedef <a href="../Reference/list_c.html">list_c</a>&lt;int,1,5,0,7,5,-1,2,4,5&gt; numbers;
typedef <a href="../Reference/remove_if.html">remove_if</a>&lt; numbers, not_equal_to&lt;_1,int_&lt;5&gt; &gt; &gt;::type fives;
BOOST_STATIC_ASSERT(<a href="../Reference/equal_to.html">equal_to</a>&lt; <a href="../Reference/count_if.html">count_if</a>&lt; fives, <a href="../Reference/equal_to.html">equal_to</a>&lt;_1,int_&lt;5&g