*DatDom: add UniData.hpp

src/domino/UniData.hpp

@@ -0,0 +1,36 @@
+/**
+ * Copyright 2024 Nokia
+ * Licensed under the BSD 3 Clause license
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+// ***********************************************************************************************
+// - why:
+//   . example to support SafePtr & shared_ptr as UniData
+//   . users can modify this file for their req
+// - why support shared_ptr?
+//   . from mem-safe pov, SafePtr is the only choice
+//   . shared_ptr may be same safe as SafePtr, then SafePtr is unnecessary
+// ***********************************************************************************************
+#pragma once
+
+#include <memory>  // make_shared
+
+using namespace std;
+
+namespace RLib
+{
+
+#if 1
+using UniData = shared_ptr<void>;
+#define MAKE_UNI_DATA  make_shared
+#else
+using UniData = SafePtr<void>;
+#define MAKE_UNI_DATA  make_safe
+#endif
+
+}  // namespace
+// ***********************************************************************************************
+// YYYY-MM-DD  Who       v)Modification Description
+// ..........  .........   .......................................................................
+// 2024-02-13  CSZ       1)create
+// ***********************************************************************************************