| /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */ |
| /** |
| * Copyright (C) 2014 Named Data Networking Project |
| * See COPYING for copyright and distribution information. |
| */ |
| |
| #ifndef NFD_CORE_MAP_VALUE_ITERATOR_H |
| #define NFD_CORE_MAP_VALUE_ITERATOR_H |
| |
| #include "common.hpp" |
| #include <boost/iterator/transform_iterator.hpp> |
| |
| namespace nfd { |
| |
| /** \class MapValueIterator |
| * \brief ForwardIterator to iterator over map values |
| */ |
| template<typename Map> |
| class MapValueIterator |
| : public boost::transform_iterator<function<const typename Map::mapped_type&(const typename Map::value_type&)>, |
| typename Map::const_iterator> |
| { |
| public: |
| explicit |
| MapValueIterator(typename Map::const_iterator it) |
| : boost::transform_iterator<function<const typename Map::mapped_type&(const typename Map::value_type&)>, |
| typename Map::const_iterator>(it, &takeSecond) |
| { |
| } |
| |
| private: |
| static const typename Map::mapped_type& |
| takeSecond(const typename Map::value_type& pair) |
| { |
| return pair.second; |
| } |
| }; |
| |
| } // namespace nfd |
| |
| #endif // NFD_CORE_MAP_VALUE_ITERATOR_H |