S</span><span class="special">,</span>
                    <span class="identifier">M</span><span class="special">&gt;::</span><span class="identifier">type</span></code>
                  </p>
                </td>
<td>
                  <p>
                    Amortized constant time
                  </p>
                </td>
</tr>
<tr>
<td>
                  <p>
                    <code class="computeroutput"><a class="link" href="../intrinsic/metafunctions/at_c.html" title="at_c"><code class="compute