Boost.Log to file and stdout simultaneously?

boost, boost-log, c++

Solution

As per the docs you can simply use the `add_console_log()` convenience function like so:

#include <boost/log/utility/setup/console.hpp>

logging::add_console_log(std::cout, boost::log::keywords::format = ">> %Message%");

Of course you can always dig into the sink configuration manually as indicated by some of the comments.

Problem

I've used `boost::log` successfully to log to stdout (using the `TRIVIAL` macros) or to log to a file (basically following the steps in the tutorial). How would we configure to log to a file and stdout simultaneously? This is a common use case in our setup when we want to have both, a log file and also all the output that goes to the log on the console. Any input appreciated!

Original source