...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
boost::local_time::partial_date_rule_spec
struct partial_date_rule_spec { // types typedef gregorian::date date_type; typedef gregorian::partial_date start_rule; typedef gregorian::partial_date end_rule; };