...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::sinks::basic_mapping — Base class for attribute mapping function objects.
// In header: <boost/log/sinks/attribute_mapping.hpp> template<typename MappedT> struct basic_mapping { // types typedef MappedT mapped_type; // Mapped value type. typedef mapped_type result_type; // Result type. };