1/* xalloc.h -- malloc with out-of-memory checking
2   Copyright (C) 1990-1998, 1999 Free Software Foundation, Inc.
3
4   This program is free software; you can redistribute it and/or modify
5   it under the terms of the GNU General Public License as published by
6   the Free Software Foundation; either version 2, or (at your option)
7   any later version.
8
9   This program is distributed in the hope that it will be useful,
10   but WITHOUT ANY WARRANTY; without even the implied warranty of
11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12   GNU General Public License for more details.
13
14   You should have received a copy of the GNU General Public License
15   along with this program; if not, write to the Free Software Foundation,
16   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
17
18#ifndef XALLOC_H_
19# define XALLOC_H_
20
21# ifndef PARAMS
22#  if defined PROTOTYPES || (defined __STDC__ && __STDC__)
23#   define PARAMS(Args) Args
24#  else
25#   define PARAMS(Args) ()
26#  endif
27# endif
28
29/* Exit value when the requested amount of memory is not available.
30   It is initialized to EXIT_FAILURE, but the caller may set it to
31   some other value.  */
32extern int xalloc_exit_failure;
33
34/* If this pointer is non-zero, run the specified function upon each
35   allocation failure.  It is initialized to zero. */
36extern void (*xalloc_fail_func) ();
37
38/* If XALLOC_FAIL_FUNC is undefined or a function that returns, this
39   message must be non-NULL.  It is translated via gettext.
40   The default value is "Memory exhausted".  */
41extern char *const xalloc_msg_memory_exhausted;
42
43void *xmalloc PARAMS ((size_t n));
44void *xcalloc PARAMS ((size_t n, size_t s));
45void *xrealloc PARAMS ((void *p, size_t n));
46
47# define XMALLOC(Type, N_bytes) ((Type *) xmalloc (sizeof (Type) * (N_bytes)))
48# define XCALLOC(Type, N_bytes) ((Type *) xcalloc (sizeof (Type), (N_bytes)))
49# define XREALLOC(Ptr, Type, N_bytes) \
50  ((Type *) xrealloc ((void *) (Ptr), sizeof (Type) * (N_bytes)))
51
52#endif /* !XALLOC_H_ */
53