10: Added <a class="link" href="algorithm/iteration/functions/reverse_fold.html" title="reverse_fold"><code class="computeroutput"><span class="identifier">reverse_fold</span></code></a>, <a class="link" href="algorithm/iteration/functions/iter_fold.html" title="iter_fold"><code class="computeroutput"><span class="identifier">iter_fold</span></code></a> and <a class="link" href="algorithm/iteration/functions/reverse_iter_fold.html" title="reverse_iter_fold"><code class="computeroutput"><span class="identifi