diff --git a/json/tree.cpp b/json/tree.cpp
index 39568267..213512f4 100644
--- a/json/tree.cpp
+++ b/json/tree.cpp
@@ -534,6 +534,22 @@ json::tree::array::operator==(const json::tree::array &rhs) const
 }
 
 
+//-----------------------------------------------------------------------------
+bool
+json::tree::array::operator== (const node &rhs) const
+{
+    return rhs == *this;
+}
+
+
+//-----------------------------------------------------------------------------
+size_t
+json::tree::array::size (void) const
+{
+    return m_values.size ();
+}
+
+
 //-----------------------------------------------------------------------------
 json::tree::node&
 json::tree::array::operator[] (unsigned int idx)
diff --git a/json/tree.hpp b/json/tree.hpp
index 19a85cca..fdfce417 100644
--- a/json/tree.hpp
+++ b/json/tree.hpp
@@ -173,11 +173,9 @@ namespace json { namespace tree {
             virtual type_t type (void) const { return ARRAY; }
 
             virtual bool operator==(const array &rhs) const;
-            virtual bool operator==(const node   &rhs) const
-                { return rhs == *this; }
+            virtual bool operator==(const node  &rhs) const;
 
-            virtual size_t size (void) const
-                { return m_values.size (); }
+            virtual size_t size (void) const;
             virtual node& operator [](unsigned int idx);
             virtual const node& operator [](unsigned int idx) const;