ss="code">usage_msg</code> and the list of
    options, and exit the program.  You can override this behaviour
    by specifying your own <code class="code">-help</code> and <code class="code">--help</code> options in <code class="code">speclist</code>.<br>
</p></div>
<pre><span id="VALparse_argv"><span class="keyword">val</span> parse_argv</span> : <code class="type">?current:int <a href="Pervasives.html#TYPEref">ref</a> -&gt;<br>       string array -&gt;<br>       (<a href="Arg.html#TYPEkey">key</a> * <a 