cial">);</span>
    <span class="special">}</span>

    <span class="comment">// Left map view</span>
    <span class="special">{</span>
        <span class="keyword">typedef</span> <span class="identifier">bimap_type</span><span class="special">::</span><span class="identifier">left_map</span> <span class="identifier">map_type</span><span class="special">;</span>
        <span class="identifier">map_type</span> <span class="special">&amp;</span> <span class="identifier">m</span> <span class="special">=</sp