on of <a href="index.html#val-set_range"><code>set_range</code></a></p></dd></dl><dl><dt class="spec value" id="val-clear_range"><a href="#val-clear_range" class="anchor"></a><code><span class="keyword">val</span> clear_range : <a href="index.html#type-t">t</a> <span>&#45;&gt;</span> int <span>&#45;&gt;</span> int <span>&#45;&gt;</span> <a href="index.html#type-t">t</a></code></dt><dd><p><code>clear_range bf i l</code> sets the range <code>[i; i+l)</code> to zeroes in <code>bf</code>. See <a href="index.htm