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
boost::log::basic_formatter::default_formatter — Default formatter, always returns true.
// In header: <boost/log/expressions/formatter.hpp>
// Default formatter, always returns true.
struct default_formatter {
// types
typedef void result_type;
// construct/copy/destruct
default_formatter();
// public member functions
result_type operator()(record_view const &, stream_type &) const;
};