diff --git a/src/OpenMesh/Core/Mesh/ArrayKernel.cc b/src/OpenMesh/Core/Mesh/ArrayKernel.cc
index de857351..00c8d3c5 100644
--- a/src/OpenMesh/Core/Mesh/ArrayKernel.cc
+++ b/src/OpenMesh/Core/Mesh/ArrayKernel.cc
@@ -177,6 +177,16 @@ void ArrayKernel::garbage_collection(bool _v, bool _e, bool _f)
   garbage_collection( empty_vh,empty_hh,empty_fh,_v, _e, _f);
 }
 
+void ArrayKernel::clean_keep_reservation()
+{
+    vertices_.clear();
+
+    edges_.clear();
+
+    faces_.clear();
+
+}
+
 void ArrayKernel::clean()
 {
 
diff --git a/src/OpenMesh/Core/Mesh/ArrayKernel.hh b/src/OpenMesh/Core/Mesh/ArrayKernel.hh
index ca64af46..eea18385 100644
--- a/src/OpenMesh/Core/Mesh/ArrayKernel.hh
+++ b/src/OpenMesh/Core/Mesh/ArrayKernel.hh
@@ -306,6 +306,14 @@ public:
    */
   void clean();
 
+  /** \brief Reset the whole mesh
+   *
+   *  This will remove all elements from the mesh but keeps the properties.
+   *  In contrast to clean() the memory used for the elements will remain
+   *  allocated.
+   */
+  void clean_keep_reservation();
+
   // --- number of items ---
   size_t n_vertices()  const { return vertices_.size(); }
   size_t n_halfedges() const { return 2*edges_.size(); }
diff --git a/src/OpenMesh/Tools/Utils/HeapT.hh b/src/OpenMesh/Tools/Utils/HeapT.hh
index bef721e4..545cfb5e 100644
--- a/src/OpenMesh/Tools/Utils/HeapT.hh
+++ b/src/OpenMesh/Tools/Utils/HeapT.hh
@@ -79,6 +79,9 @@
 #include "Config.hh"
 #include <vector>
 #include <OpenMesh/Core/System/omstream.hh>
+#if __cplusplus > 199711L || defined(__GXX_EXPERIMENTAL_CXX0X__)
+#include <utility>
+#endif
 
 //== NAMESPACE ================================================================
 
@@ -147,14 +150,28 @@ public:
   /// Constructor
   HeapT() : HeapVector() {}
   
+#if __cplusplus > 199711L || defined(__GXX_EXPERIMENTAL_CXX0X__)
   /// Construct with a given \c HeapIterface. 
-  HeapT(const HeapInterface& _interface)
+  HeapT(HeapInterface _interface)
+  : HeapVector(),  interface_(std::move(_interface))
+  {}
+#else
+  /// Construct with a given \c HeapIterface.
+  HeapT(const HeapInterface &_interface)
   : HeapVector(),  interface_(_interface)
   {}
-  
+#endif
+
   /// Destructor.
   ~HeapT(){};
 
+  HeapInterface &getInterface() {
+      return interface_;
+  }
+
+  const HeapInterface &getInterface() const {
+      return interface_;
+  }
 
   /// clear the heap
   void clear() { HeapVector::clear(); }
@@ -187,14 +204,14 @@ public:
   HeapEntry front() const
   { 
     assert(!empty()); 
-    return entry(0); 
+    return HeapVector::front();
   }
 
   /// delete the first entry
   void pop_front()
   {    
     assert(!empty());
-    reset_heap_position(entry(0));
+    reset_heap_position(HeapVector::front());
     if (size() > 1)
     {
       entry(0, entry(size()-1));
@@ -338,9 +355,9 @@ void
 HeapT<HeapEntry, HeapInterface>::
 downheap(size_t _idx)
 {
-  HeapEntry     h = entry(_idx);
+  const HeapEntry     h = entry(_idx);
   size_t        childIdx;
-  size_t        s = size();
+  const size_t        s = size();
   
   while(_idx < s)
   {