          Decrement operator (prefix).
                </p>
                <p>
                  Decrement operator (postfix).
                </p>
              </td>
</tr>
<tr>
<td>
                <p>
                  <a class="link" href="buffers_iterator/operator_minus__eq_.html" title="buffers_iterator::operator-="><span class="bold"><strong>operator-=</strong></span></a>
                </p>
              </td>
<td>
                <p>
                  Subtraction operator.
                </p>
  