1/* Test we don't segfault on invalid UTF-8 sequence.
2 Copyright (C) 2004-2022 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 <locale.h>
20#include <regex.h>
21#include <string.h>
22
23int
24main (void)
25{
26 regex_t r;
27
28 memset (&r, 0, sizeof (r));
29 setlocale (LC_ALL, "de_DE.UTF-8");
30 regcomp (preg: &r, pattern: "[-a-z_0-9.]+@[-a-z_0-9.]+", REG_EXTENDED | REG_ICASE);
31 regexec (preg: &r, String: "\xe7\xb7\x95\xe7\x97", nmatch: 0, NULL, eflags: 0);
32 return 0;
33}
34

source code of glibc/posix/bug-regex23.c