add test cases
diff --git a/tinyxml2.cpp b/tinyxml2.cpp
index b1259dc..2622dd3 100755
--- a/tinyxml2.cpp
+++ b/tinyxml2.cpp
@@ -1494,6 +1494,12 @@
 	_value.SetStr(buf);

 }

 

+void XMLAttribute::SetAttribute(uint64_t v)

+{

+    char buf[BUF_SIZE];

+    XMLUtil::ToStr(v, buf, BUF_SIZE);

+    _value.SetStr(buf);

+}

 

 

 void XMLAttribute::SetAttribute( bool v )