ass="string">" = "</span> <span class="special">&lt;&lt;</span> <span class="identifier">extension</span><span class="special">.</span><span class="identifier">second</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
            <span class="keyword">else</span>
                <span class="identifier">os</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</sp