-#ifndef PARAMS
-# if defined PROTOTYPES || (defined __STDC__ && __STDC__)
-# define PARAMS(Args) Args
-# else
-# define PARAMS(Args) ()
+/* xalloc.h -- malloc with out-of-memory checking
+
+ Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+ 1999, 2000, 2003 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
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+
+#ifndef XALLOC_H_
+# define XALLOC_H_
+
+# include <stddef.h>
+
+# ifndef __attribute__
+# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 8) || __STRICT_ANSI__
+# define __attribute__(x)
+# endif
+# endif
+
+# ifndef ATTRIBUTE_NORETURN
+# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
# endif
-#endif
-/* Exit value when the requested amount of memory is not available.
- The caller may set it to some other value. */
-extern int xalloc_exit_failure;
+/* If this pointer is non-zero, run the specified function upon each
+ allocation failure. It is initialized to zero. */
+extern void (*xalloc_fail_func) (void);
+
+/* If XALLOC_FAIL_FUNC is undefined or a function that returns, this
+ message is output. It is translated via gettext.
+ Its value is "memory exhausted". */
+extern char const xalloc_msg_memory_exhausted[];
+
+/* This function is always triggered when memory is exhausted. It is
+ in charge of honoring the two previous items. It exits with status
+ exit_failure (defined in exitfail.h). This is the
+ function to call when one wants the program to die because of a
+ memory allocation failure. */
+extern void xalloc_die (void) ATTRIBUTE_NORETURN;
+
+void *xmalloc (size_t n);
+void *xcalloc (size_t n, size_t s);
+void *xrealloc (void *p, size_t n);
+char *xstrdup (const char *str);
+
+# define XMALLOC(Type, N_items) xmalloc (sizeof (Type) * (N_items))
+# define XCALLOC(Type, N_items) xcalloc (sizeof (Type), N_items)
+# define XREALLOC(Ptr, Type, N_items) xrealloc (Ptr, sizeof (Type) * (N_items))
+
+/* Declare and alloc memory for VAR of type TYPE. */
+# define NEW(Type, Var) Type *(Var) = XMALLOC (Type, 1)
+
+/* Free VAR only if non NULL. */
+# define XFREE(Var) \
+ do { \
+ if (Var) \
+ free (Var); \
+ } while (0)
+
+/* Return a pointer to a malloc'ed copy of the array SRC of NUM elements. */
+# define CCLONE(Src, Num) \
+ (memcpy (xmalloc (sizeof *(Src) * (Num)), Src, sizeof *(Src) * (Num)))
-/* FIXME: describe */
-extern char *const xalloc_msg_memory_exhausted;
+/* Return a malloc'ed copy of SRC. */
+# define CLONE(Src) CCLONE (Src, 1)
-/* FIXME: describe */
-extern void (*xalloc_fail_func) ();
-void *xmalloc PARAMS ((size_t n));
-void *xcalloc PARAMS ((size_t n, size_t s));
-void *xrealloc PARAMS ((void *p, size_t n));
+#endif /* !XALLOC_H_ */