...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
namespace boost { namespace algorithm { // iterator-based gather implementation template<typename BidirectionalIterator, typename Pred> std::pair< BidirectionalIterator, BidirectionalIterator > gather(BidirectionalIterator first, BidirectionalIterator last, BidirectionalIterator pivot, Pred pred); // range-based gather implementation template<typename BidirectionalRange, typename Pred> std::pair< typename boost::range_iterator< const BidirectionalRange >::type, typename boost::range_iterator< const BidirectionalRange >::type > gather(const BidirectionalRange & range, typename boost::range_iterator< const BidirectionalRange >::type pivot, Pred pred); } }