s="string">"char_of_int"</span></code> if the argument is
   outside the range 0--255.<br>
</div>
<br>
<h6 id="6_Unitoperations">Unit operations</h6><br>

<pre><span id="VALignore"><span class="keyword">val</span> ignore</span> : <code class="type">'a -&gt; unit</code></pre><div class="info ">
Discard the value of its argument and return <code class="code">()</code>.
   For instance, <code class="code">ignore(f x)</code> discards the result of
   the side-effecting function <code class="code">f</code>.  It 