[libxml++] Node::get_parent(): Removed code duplication.

[Murray Cumming <murrayc src gnome org>]

commit d8a1b4273139ad6c43a2595db85470c6061913dc
Author: Knut Aksel Røysland <knutroy ifi uio no>
Date:   Thu Oct 14 22:19:23 2010 +0200

    Node::get_parent(): Removed code duplication.
    
    * libxml++/nodes/node.cc: get_parent() const: Use const_cast<> to call
      the non-const version, instead of duplicating the code.

 ChangeLog              |    7 +++++++
 libxml++/nodes/node.cc |    3 +--
 2 files changed, 8 insertions(+), 2 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 917c622..50626bf 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2010-10-19  Knut Aksel Røysland  <knutroy ifi uio no>
+
+  Node::get_parent(): Removed code duplication.
+
+  * libxml++/nodes/node.cc: get_parent() const: Use const_cast<> to call
+  the non-const version, instead of duplicating the code.
+
 2.32.0:
 
 2010-10-14  Murray Cumming  <murrayc murrayc com>
diff --git a/libxml++/nodes/node.cc b/libxml++/nodes/node.cc
index e4bb723..7cf34d3 100644
--- a/libxml++/nodes/node.cc
+++ b/libxml++/nodes/node.cc
@@ -27,8 +27,7 @@ Node::~Node()
 
 const Element* Node::get_parent() const
 {
-  return cobj()->parent && cobj()->parent->type == XML_ELEMENT_NODE ? 
-             static_cast<const Element*>(cobj()->parent->_private) : 0;
+  return const_cast<Node*>(this)->get_parent();
 }
 
 Element* Node::get_parent()