...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
boost::log::sources::channel::apply
// In header: <boost/log/sources/channel_feature.hpp> template<typename BaseT> struct apply { // types typedef basic_channel_logger< BaseT, ChannelT > type; };