ween each.</p>
</div>
<ul class="info-attributes">
<li><b>Raises</b> <code>Invalid_argument</code> if the result is longer than
    <a href="Sys.html#VALmax_string_length"><code class="code"><span class="constructor">Sys</span>.max_string_length</code></a> bytes.</li>
</ul>
</div>

<pre><span id="VALcat"><span class="keyword">val</span> cat</span> : <code class="type">string -&gt; string -&gt; string</code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">cat&nbsp;s1&nbsp;s2</code> con