Added
Map::clear()/Set::clear()have been added to clear the contents of the
collections.Map::shrink_to[_fit]()/Set::shrink_to[_fit]()have been added to allow
shrinking an existing collection's allocation.
Map::clear()/Set::clear() have been added to clear the contents of theMap::shrink_to[_fit]()/Set::shrink_to[_fit]() have been added to allow