e</span></code> is
                      convertible to the <code class="computeroutput"><span class="identifier">value_type</span></code>
                      of the range.
                    </li>
</ul></div>
              </li>
<li class="listitem">
                <span class="bold"><strong>Postconditions:</strong></span> For all elements
                <code class="computeroutput"><span class="identifier">x</span></code> in the returned
                range, the value <code class="computeroutput"><