...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
boost::date_time::convert_to_lower — A function to replace the std::transform( , , ,tolower) construct.
// In header: <boost/date_time/date_parsing.hpp> std::string convert_to_lower(std::string inp);