Add QueryAttribute for const char**
diff --git a/tinyxml2.h b/tinyxml2.h
index 2eec50d..7220930 100755
--- a/tinyxml2.h
+++ b/tinyxml2.h
@@ -1456,6 +1456,10 @@
 		return QueryFloatAttribute( name, value );

 	}

 

+	XMLError QueryAttribute(const char* name, const char** value) const {

+		return QueryStringAttribute(name, value);

+		}

+

 	/// Sets the named attribute to value.

     void SetAttribute( const char* name, const char* value )	{

         XMLAttribute* a = FindOrCreateAttribute( name );