Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
This is an older version of Boost and was released in 2022. The current version is 1.89.0.
BOOST_LOG_DECLARE_LOGGER — The macro declares a narrow-char logger class that inherits a number of base classes.
// In header: <boost/log/sources/basic_logger.hpp>
BOOST_LOG_DECLARE_LOGGER(type_name, base_seq)