...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
boost::icl::adder
// In header: <boost/icl/iterator.hpp> template<typename ContainerT, typename IteratorT> add_iterator< ContainerT > adder(ContainerT & cont, IteratorT iter_);