1 /* realloc() function that is glibc compatible.
2 Copyright (C) 1997, 2003, 2004 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
17 #include <sys/cdefs.h>
18 __RCSID("$NetBSD: realloc.c,v 1.2 2016/05/17 14:00:09 christos Exp $");
19
20
21 /* written by Jim Meyering */
22
23 #ifdef HAVE_CONFIG_H
24 # include <config.h>
25 #endif
26 #undef realloc
27
28 #include <stdlib.h>
29
30 /* Change the size of an allocated block of memory P to N bytes,
31 with error checking. If N is zero, change it to 1. If P is NULL,
32 use malloc. */
33
34 void *
rpl_realloc(void * p,size_t n)35 rpl_realloc (void *p, size_t n)
36 {
37 if (n == 0)
38 {
39 n = 1;
40
41 /* In theory realloc might fail, so don't rely on it to free. */
42 free (p);
43 p = NULL;
44 }
45
46 if (p == NULL)
47 return malloc (n);
48 return realloc (p, n);
49 }
50