1/* xmalloc.c -- safe versions of malloc and realloc.
2
3   Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 2004 Free Software
4   Foundation, Inc.
5
6   This program is free software; you can redistribute it and/or modify
7   it under the terms of the GNU General Public License as published by
8   the Free Software Foundation; either version 2, or (at your option)
9   any later version.
10
11   This program is distributed in the hope that it will be useful,
12   but WITHOUT ANY WARRANTY; without even the implied warranty of
13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14   GNU General Public License for more details.
15
16   You should have received a copy of the GNU General Public License
17   along with this program; if not, write to the Free Software
18   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19
20   Written by Brian Fox (bfox@ai.mit.edu). */
21
22#if !defined (ALREADY_HAVE_XMALLOC)
23#include "system.h"
24
25static void
26memory_error_and_abort (const char *fname)
27{
28  fprintf (stderr, "%s: Out of virtual memory!\n", fname);
29  abort ();
30}
31
32/* Return a pointer to free()able block of memory large enough
33   to hold BYTES number of bytes.  If the memory cannot be allocated,
34   print an error message and abort. */
35void *
36xmalloc (size_t bytes)
37{
38  void *temp = malloc (bytes);
39
40  if (!temp)
41    memory_error_and_abort ("xmalloc");
42  return (temp);
43}
44
45void *
46xrealloc (void *pointer, size_t bytes)
47{
48  void *temp;
49
50  if (!pointer)
51    temp = malloc (bytes);
52  else
53    temp = realloc (pointer, bytes);
54
55  if (!temp)
56    memory_error_and_abort ("xrealloc");
57
58  return (temp);
59}
60
61#endif /* !ALREADY_HAVE_XMALLOC */
62