t</a></code>.

<pre>
: *Adr
-> "127.0.0.1"
</pre></dd>

<dt><a id="adr"><code>(adr 'var) -> num</code></a></dt>
<dt><code>(adr 'num) -> var</code></dt>
<dd>Converts, in the first form, a variable <code>var</code> (a symbol or a cons
pair) into <code>num</code> (actually an encoded pointer). This pointer can be
passed to <code><a href="refN.html#native">native</a></code> or <code><a
href="refS.html#struct">struct</a></code>. The second form converts a pointer
back into the original <code>var</code>. Note tha