diff --git a/json/tree.cpp b/json/tree.cpp
index badaf8d5..e5296ccd 100644
--- a/json/tree.cpp
+++ b/json/tree.cpp
@@ -528,6 +528,58 @@ json::tree::array::operator[] (unsigned int idx) const
 }
 
 
+//-----------------------------------------------------------------------------
+json::tree::array::iterator
+json::tree::array::begin (void)
+{
+    return iterator (m_values.begin ());
+}
+
+
+
+//-----------------------------------------------------------------------------
+json::tree::array::iterator
+json::tree::array::end (void)
+{
+    return iterator (m_values.end ());
+}
+
+
+
+//-----------------------------------------------------------------------------
+json::tree::array::const_iterator
+json::tree::array::begin (void) const
+{
+    return const_iterator (m_values.begin ());
+}
+
+
+
+//-----------------------------------------------------------------------------
+json::tree::array::const_iterator
+json::tree::array::end (void) const
+{
+    return const_iterator (m_values.end ());
+}
+
+
+
+//-----------------------------------------------------------------------------
+json::tree::array::const_iterator
+json::tree::array::cbegin (void) const
+{
+    return const_iterator (m_values.cbegin ());
+}
+
+
+//-----------------------------------------------------------------------------
+json::tree::array::const_iterator
+json::tree::array::cend (void) const
+{
+    return const_iterator (m_values.cend ());
+}
+
+
 //-----------------------------------------------------------------------------
 std::ostream&
 json::tree::array::write (std::ostream &os) const {
diff --git a/json/tree.hpp b/json/tree.hpp
index 4d0f14c1..dc3e2343 100644
--- a/json/tree.hpp
+++ b/json/tree.hpp
@@ -139,6 +139,8 @@ namespace json { namespace tree {
 
             virtual const_iterator begin (void) const;
             virtual const_iterator end   (void) const;
+            virtual const_iterator cbegin (void) const { return begin (); }
+            virtual const_iterator cend   (void) const { return end   (); }
 
             virtual std::ostream& write (std::ostream &os) const;
     };
@@ -175,8 +177,12 @@ namespace json { namespace tree {
             virtual node& operator [](unsigned int idx);
             virtual const node& operator [](unsigned int idx) const;
 
-            virtual const_iterator begin (void) const   { return const_iterator (m_values.begin ()); }
-            virtual const_iterator end   (void) const   { return const_iterator (m_values.end   ()); }
+            virtual iterator begin (void);
+            virtual iterator end   (void);
+            virtual const_iterator begin (void) const;
+            virtual const_iterator end   (void) const;
+            virtual const_iterator cbegin (void) const;
+            virtual const_iterator cend   (void) const;
 
             virtual void insert (std::unique_ptr<json::tree::node> &&_value);