fw: FaceTable
refs #1317
Change-Id: Ief04fe572407120ca6777c087a519c1749f0cdd2
diff --git a/daemon/core/map-value-iterator.hpp b/daemon/core/map-value-iterator.hpp
new file mode 100644
index 0000000..c8d3df7
--- /dev/null
+++ b/daemon/core/map-value-iterator.hpp
@@ -0,0 +1,41 @@
+/* -*- 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