st/log/utility/setup/from_stream.hpp&gt;">boost/log/utility/setup/from_stream.hpp</a></code><span class="special">&gt;</span>
</pre>
<p>
          The library provides mechanism of extending support for sinks similar to
          the formatter and filter parsers. In order to be able to mention user-defined
          sinks in a settings file, the user has to register a sink factory, which
          essentially contains the <code class="computeroutput"><span class="identifier">create_sink</span></code>
      