> : <code class="type">'a array -&gt; int -&gt; int -&gt; 'a -&gt; unit</code></pre><div class="info ">
<div class="info-desc">
<p><code class="code"><span class="constructor">Array</span>.fill&nbsp;a&nbsp;ofs&nbsp;len&nbsp;x</code> modifies the array <code class="code">a</code> in place,
   storing <code class="code">x</code> in elements number <code class="code">ofs</code> to <code class="code">ofs&nbsp;+&nbsp;len&nbsp;-&nbsp;1</code>.</p>

<p>Raise <code class="code"><span class="constructor">Invalid_arg