ent of the current directory
   (e.g. <code class="code">..</code> in Unix).<br>
</div>

<pre><span id="VALdir_sep"><span class="keyword">val</span> dir_sep</span> : <code class="type">string</code></pre><div class="info ">
The directory separator (e.g. <code class="code">/</code> in Unix).<br>
<b>Since</b> 3.11.2<br>
</div>

<pre><span id="VALconcat"><span class="keyword">val</span> concat</span> : <code class="type">string -&gt; string -&gt; string</code></pre><div class="info ">
<code class="code">concat