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-rw-r--r--gl/reallocarray.c38
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1/* reallocarray function that is glibc compatible.
2
3 Copyright (C) 2017-2023 Free Software Foundation, Inc.
4
5 This file is free software: you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as
7 published by the Free Software Foundation; either version 2.1 of the
8 License, or (at your option) any later version.
9
10 This file is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public License
16 along with this program. If not, see <https://www.gnu.org/licenses/>. */
17
18/* written by Darshit Shah */
19
20#include <config.h>
21
22#include <stdckdint.h>
23#include <stdlib.h>
24#include <errno.h>
25
26void *
27reallocarray (void *ptr, size_t nmemb, size_t size)
28{
29 size_t nbytes;
30 if (ckd_mul (&nbytes, nmemb, size))
31 {
32 errno = ENOMEM;
33 return NULL;
34 }
35
36 /* Rely on the semantics of GNU realloc. */
37 return realloc (ptr, nbytes);
38}