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/* 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
/* 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 s);
void *xnmalloc (size_t n, size_t s);
void *xzalloc (size_t s);
void *xcalloc (size_t n, size_t s);
void *xrealloc (void *p, size_t s);
void *xnrealloc (void *p, size_t n, size_t s);
void *xclone (void const *p, size_t s);
char *xstrdup (const char *str);
/* These macros are deprecated; they will go away soon, and are retained
temporarily only to ease conversion to the functions described above. */
# define CCLONE(p, n) xclone (p, (n) * sizeof *(p))
# define CLONE(p) xclone (p, sizeof *(p))
# define NEW(type, var) type *var = xmalloc (sizeof (type))
# define XCALLOC(type, n) xcalloc (n, sizeof (type))
# define XMALLOC(type, n) xnmalloc (n, sizeof (type))
# define XREALLOC(p, type, n) xnrealloc (p, n, sizeof (type))
# define XFREE(p) free (p)
#endif /* !XALLOC_H_ */
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