...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Copy n items from one sequence to another.
Marshall Clow
namespace boost { namespace algorithm { template<typename InputIterator, typename Size, typename OutputIterator> OutputIterator copy_n(InputIterator, Size, OutputIterator); } }