sections they can be tagged with user
          defined names and additional information can be attached to them. You can
          convert from <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">pairs</span></code> to bimap pairs directly but the
          reverse conversion is not provided. This mean that you can insert elements
          in a bimap using algorithms like <code class="computeroutput"><span class="identifier">std</span><sp