Add ConstNodePtr.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/cxml.h b/src/cxml.h
index 4ae82dc..0f57b92 100644
--- a/src/cxml.h
+++ b/src/cxml.h
@@ -208,6 +208,7 @@ private:
 };
 
 typedef boost::shared_ptr<cxml::Node> NodePtr;
+typedef boost::shared_ptr<const cxml::Node> ConstNodePtr;
 
 class Document : public Node
 {