...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
boost::xpressive::op::second
// In header: <boost/xpressive/regex_actions.hpp> struct second { // member classes/structs/unions template<typename Sig> struct result { }; template<typename This, typename Pair> struct result<This(Pair)> { }; // public member functions template<typename Pair> Pair::second_type operator()(Pair const &) const; };