+
+/* In the following macros, T must be an elementary or structure/union or
+ typedef'ed type, or a pointer to such a type. To apply one of the
+ following macros to a function pointer or array type, you need to typedef
+ it first and use the typedef name. */
+
+/* Allocate an object of type T dynamically, with error checking. */
+/* extern t *XMALLOC (typename t); */
+# define XMALLOC(t) ((t *) xmalloc (sizeof (t)))
+
+/* Allocate memory for N elements of type T, with error checking. */
+/* extern t *XNMALLOC (size_t n, typename t); */
+# define XNMALLOC(n, t) \
+ ((t *) (sizeof (t) == 1 ? xmalloc (n) : xnmalloc (n, sizeof (t))))
+
+/* Allocate an object of type T dynamically, with error checking,
+ and zero it. */
+/* extern t *XZALLOC (typename t); */
+# define XZALLOC(t) ((t *) xzalloc (sizeof (t)))
+
+/* Allocate memory for N elements of type T, with error checking,
+ and zero it. */
+/* extern t *XCALLOC (size_t n, typename t); */
+# define XCALLOC(n, t) \
+ ((t *) (sizeof (t) == 1 ? xzalloc (n) : xcalloc (n, sizeof (t))))
+
+
+# if HAVE_INLINE
+# define static_inline static inline
+# else
+ void *xnmalloc (size_t n, size_t s);
+ void *xnrealloc (void *p, size_t n, size_t s);
+ void *x2nrealloc (void *p, size_t *pn, size_t s);
+ char *xcharalloc (size_t n);
+# endif
+
+# ifdef static_inline
+