1/* Test for memory handling in regex.
2 Copyright (C) 2001-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library 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 GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include <sys/types.h>
20#include <mcheck.h>
21#include <regex.h>
22#include <stdio.h>
23#include <stdlib.h>
24
25
26static const char text[] = "This is a test; this is a test";
27
28int
29main (void)
30{
31 regex_t re;
32 regmatch_t rm[2];
33 int n;
34
35 mtrace ();
36
37 n = regcomp (preg: &re, pattern: "a test", REG_EXTENDED);
38 if (n != 0)
39 {
40 char buf[500];
41 regerror (errcode: n, preg: &re, errbuf: buf, errbuf_size: sizeof (buf));
42 printf (format: "regcomp failed: %s\n", buf);
43 exit (1);
44 }
45
46 for (n = 0; n < 20; ++n)
47 regexec (preg: &re, String: text, nmatch: 2, pmatch: rm, eflags: 0);
48
49 regfree (preg: &re);
50
51 return 0;
52}
53

source code of glibc/posix/bug-regex2.c