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diff --git a/src/H5UCprivate.h b/src/H5UCprivate.h
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+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by The HDF Group.                                               *
+ * Copyright by the Board of Trustees of the University of Illinois.         *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * This file is part of HDF5.  The full HDF5 copyright notice, including     *
+ * terms governing use, modification, and redistribution, is contained in    *
+ * the files COPYING and Copyright.html.  COPYING can be found at the root   *
+ * of the source code distribution tree; Copyright.html can be found at the  *
+ * root level of an installed copy of the electronic HDF5 document set and   *
+ * is linked from the top-level documents page.  It can also be found at     *
+ * http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have          *
+ * access to either file, you may request a copy from help@hdfgroup.org.     *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*
+ * This file contains private information about the H5UC module
+ * The module used to be H5RC, but changed to H5UC because of 
+ * conflicting requirement for the use of H5RC.
+ */
+
+#ifndef _H5UCprivate_H
+#define _H5UCprivate_H
+
+/**************************************/
+/* Public headers needed by this file */
+/**************************************/
+#ifdef LATER
+#include "H5UCpublic.h"
+#endif /* LATER */
+
+/***************************************/
+/* Private headers needed by this file */
+/***************************************/
+#include "H5private.h"
+
+/************/
+/* Typedefs */
+/************/
+
+/* Typedef for function to release object when reference count drops to zero */
+typedef herr_t (*H5UC_free_func_t)(void *o);
+
+/* Typedef for reference counted objects */
+typedef struct H5UC_t {
+    void *o;            /* Object to be reference counted */
+    size_t n;           /* Reference count of number of pointers sharing object */
+    H5UC_free_func_t free_func; /* Function to free object */
+} H5UC_t;
+
+/**********/
+/* Macros */
+/**********/
+#define H5UC_INC(rc)            ((rc)->n++)
+#define H5UC_DEC(rc)            (H5UC_decr(rc))
+#define H5UC_GET_OBJ(rc)        ((rc)->o)
+
+/********************/
+/* Private routines */
+/********************/
+H5_DLL H5UC_t *H5UC_create(void *s, H5UC_free_func_t free_func);
+H5_DLL herr_t H5UC_decr(H5UC_t *rc);
+
+#endif /* _H5RSprivate_H */
+
+