cates foreign memory
holding a copy of <var>string</var> converted using the specified
<var>encoding</var>. <var>Start</var> specifies an offset into <var>string</var> and
<var>end</var> marks the position following the last element of the foreign
string.

   <p>This string must be freed with <code>foreign-string-free</code>.

   <p>If <var>null-terminated-p</var> is false, the string will not be
null-terminated.

<h4 class="subheading">Examples</h4>

<pre class="lisp">  CFFI&gt; <span class="paren1">(<span