/* PSPP - a program for statistical analysis.
- Copyright (C) 2007 Free Software Foundation, Inc.
+ Copyright (C) 2007, 2009, 2011 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include <stdbool.h>
-#include <libpspp/bt.h>
+#include "libpspp/bt.h"
+#include "libpspp/cast.h"
/* Returns the data structure corresponding to the given NODE,
assuming that NODE is embedded as the given MEMBER name in
data type STRUCT. */
#define range_map_data(NODE, STRUCT, MEMBER) \
- ((STRUCT *) ((char *) (NODE) - offsetof (STRUCT, MEMBER)))
+ (CHECK_POINTER_HAS_TYPE (NODE, struct range_map_node *), \
+ UP_CAST (NODE, STRUCT, MEMBER))
/* A range map node, to be embedded in the data value. */
struct range_map_node