Postgres95 1.01 Distribution - Virgin Sources

src/backend/storage/page/itemptr.c

@@ -0,0 +1,40 @@
+/*-------------------------------------------------------------------------
+ *
+ * itemptr.c--
+ *    POSTGRES disk item pointer code.
+ *
+ * Copyright (c) 1994, Regents of the University of California
+ *
+ *
+ * IDENTIFICATION
+ *    $Header: /cvsroot/pgsql/src/backend/storage/page/itemptr.c,v 1.1.1.1 1996/07/09 06:21:59 scrappy Exp $
+ *
+ *-------------------------------------------------------------------------
+ */
+#include "c.h"
+
+#include "storage/block.h"
+#include "storage/off.h"
+#include "storage/itemptr.h"
+#include "storage/bufpage.h"
+
+/*
+ * ItemPointerEquals --
+ *  Returns true if both item pointers point to the same item, 
+ *   otherwise returns false.
+ *
+ * Note:
+ *  Assumes that the disk item pointers are not NULL.
+ */
+bool
+ItemPointerEquals(ItemPointer pointer1, ItemPointer pointer2)
+{
+    if (ItemPointerGetBlockNumber(pointer1) ==
+        ItemPointerGetBlockNumber(pointer2) &&
+        ItemPointerGetOffsetNumber(pointer1) ==
+        ItemPointerGetOffsetNumber(pointer2))
+	return(true);
+    else
+        return(false);
+}
+