> *map_context</code></em>,
                                <em class="parameter"><code><span class="type">void</span> *item</code></em>);</pre>
            <p>Map function for a <a class="link" href="redland-iterator.html#librdf-iterator"
                                     title="librdf_iterator"><span class="type">librdf_iterator</span></a> map
                operation.</p>
            <p>See <a class="link" href="redland-iterator.html#librdf-iterator-add-map"
                      title="librdf_