...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::time_label_invalid — simple exception for when time label given cannot exist
// In header: <boost/date_time/local_time/local_date_time.hpp> struct time_label_invalid { // construct/copy/destruct time_label_invalid(std::string const & = std::string()); };