...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::push_back — push_back
is a PolymorphicFunctionObject for pushing an element into the back of a container.
// In header: <boost/xpressive/regex_actions.hpp> struct push_back { // types typedef void result_type; // public member functions template<typename Sequence, typename Value> void operator()(Sequence &, Value const &) const; };