...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::expressions::channel_severity_filter — This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
// In header: <boost/log/expressions/predicates/channel_severity_filter.hpp> template<typename ChannelDescriptorT, typename SeverityDescriptorT, template< typename > class ActorT, typename SeverityCompareT> channel_severity_filter_actor< typename ChannelDescriptorT::value_type, typename SeverityDescriptorT::value_type, fallback_to_none, fallback_to_none, less, SeverityCompareT, use_std_allocator, ActorT > channel_severity_filter(attribute_keyword< ChannelDescriptorT, ActorT > const & channel_keyword, attribute_keyword< SeverityDescriptorT, ActorT > const & severity_keyword, SeverityCompareT const & severity_compare);