text: // https: //www.boost.org/doc/libs/1_67_0/libs/log/doc/html/log/tutorial.htm
  #define BOOST_LOG_DYN_LINK 1
  #include <boost/log/trivial.hpp>
  
  int main(int, char*[])
  {
      BOOST_LOG_TRIVIAL(trace) << "A trace severity message";
      BOOST_LOG_TRIVIAL(debug) << "A debug severity message";
      BOOST_LOG_TRIVIAL(info) << "An informational severity message";
      BOOST_LOG_TRIVIAL(warning) << "A warning severity message";
      BOOST_LOG_TRIVIAL(error) << "An error severity message";
      BOOST_LOG_TRIVIAL(fatal) << "A fatal severity message";
  
      return 0;
  }