an class="identifier">concurrency</span><span class="special">::</span><span class="identifier">streams</span><span class="special">::</span><span class="identifier">istream</span> <span class="special">&amp;</span><span class="identifier">instream</span><span class="special">)</span>  <span class="special">{</span> <span class="identifier">m_inStream</span> <span class="special">=</span> <span class="identifier">instream</span><span class="special">;</span> <span class="special">}</span>

    <span class="