Improved const correctness. There are no functional changes intended.
diff --git a/tinyxml2.cpp b/tinyxml2.cpp
index 6b79917..df84f77 100755
--- a/tinyxml2.cpp
+++ b/tinyxml2.cpp
@@ -2101,7 +2101,7 @@
 }

 

 

-void XMLDocument::MarkInUse(XMLNode* node)

+void XMLDocument::MarkInUse(const XMLNode* const node)

 {

 	TIXMLASSERT(node);

 	TIXMLASSERT(node->_parent == 0);