tself register its entry points with the main program (or a
    previously-loaded library) e.g. by modifying tables of functions.</p>

<p>An exception will be raised if the given library defines toplevel
    modules whose names clash with modules existing either in the main
    program or a shared library previously loaded with <code class="code">loadfile</code>.
    Modules from shared libraries previously loaded with
    <code class="code">loadfile_private</code> are not included in this restriction.</p>
