5091456-bb"><span class="identifier">add_stream</span></a><span class="special">(</span><span class="identifier">shared_ptr</span><span class="special">&lt;</span> <span class="identifier">stream_type</span> <span class="special">&gt;</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">void</span> <a class="link" href="basic_text_ostream_backend.html#idm46093045088720-bb"><span class="identifier">rem