2 files changed, 26 insertions, 12 deletions

diff --git a/include/plist/Array.h b/include/plist/Array.h
index 34ddd6f..949fa4c 100644
--- a/include/plist/Array.h
+++ b/include/plist/Array.h
@@ -52,19 +52,18 @@ public :
     const_iterator End() const;
     const_iterator end() const;
     size_t size() const;
-    void Append(Node* node);
-    void Insert(Node* node, unsigned int pos);
+    void Append(const Node& node);
+    void Append(const Node* node);
+    void Insert(const Node& node, unsigned int pos);
+    void Insert(const Node* node, unsigned int pos);
     void Remove(Node* node);
     void Remove(unsigned int pos);
-    unsigned int GetNodeIndex(Node* node) const;
-    template <typename T>
-    T* at(unsigned int index)
-    {
+    unsigned int GetNodeIndex(const Node& node) const;
+    unsigned int GetNodeIndex(const Node* node) const;
+    template <typename T> T* at(unsigned int index) {
         return (T*)(_array.at(index));
     }
-    template <typename T>
-    T* At(unsigned int index)
-    {
+    template <typename T> T* At(unsigned int index) {
         return (T*)(_array.at(index));
     }
 
diff --git a/src/Array.cpp b/src/Array.cpp
index 7051ed9..de1259e 100644
--- a/src/Array.cpp
+++ b/src/Array.cpp
@@ -134,7 +134,7 @@ size_t Array::size() const {
     return _array.size();
 }
 
-void Array::Append(Node* node)
+void Array::Append(const Node* node)
 {
     if (node)
     {
@@ -145,7 +145,12 @@ void Array::Append(Node* node)
     }
 }
 
-void Array::Insert(Node* node, unsigned int pos)
+void Array::Append(const Node& node)
+{
+    Append(&node);
+}
+
+void Array::Insert(const Node* node, unsigned int pos)
 {
     if (node)
     {
@@ -158,6 +163,11 @@ void Array::Insert(Node* node, unsigned int pos)
     }
 }
 
+void Array::Insert(const Node &node, unsigned int pos)
+{
+    Insert(&node, pos);
+}
+
 void Array::Remove(Node* node)
 {
     if (node)
@@ -183,10 +193,15 @@ void Array::Remove(unsigned int pos)
     _array.erase(it);
 }
 
-unsigned int Array::GetNodeIndex(Node* node) const
+unsigned int Array::GetNodeIndex(const Node* node) const
 {
     std::vector<Node*>::const_iterator it = std::find(_array.begin(), _array.end(), node);
     return std::distance (_array.begin(), it);
 }
 
+unsigned int Array::GetNodeIndex(const Node& node) const
+{
+    return GetNodeIndex(&node);
+}
+
 }  // namespace PList