1/* Test REG_NEWLINE.
2 Copyright (C) 2007-2022 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 <regex.h>
20#include <stdio.h>
21#include <string.h>
22
23struct tests
24{
25 const char *regex;
26 const char *string;
27 int cflags;
28 int retval;
29} tests[] = {
30 { "a.b", "a\nb", REG_EXTENDED | REG_NEWLINE, REG_NOMATCH },
31 { "a.b", "a\nb", REG_EXTENDED, 0 },
32 { "a[^x]b", "a\nb", REG_EXTENDED | REG_NEWLINE, REG_NOMATCH },
33 { "a[^x]b", "a\nb", REG_EXTENDED, 0 }
34};
35
36int
37main (void)
38{
39 regex_t r;
40 size_t i;
41 int ret = 0;
42
43 for (i = 0; i < sizeof (tests) / sizeof (tests[i]); ++i)
44 {
45 memset (&r, 0, sizeof (r));
46 if (regcomp (preg: &r, pattern: tests[i].regex, cflags: tests[i].cflags))
47 {
48 printf (format: "regcomp %zd failed\n", i);
49 ret = 1;
50 continue;
51 }
52 int rv = regexec (preg: &r, String: tests[i].string, nmatch: 0, NULL, eflags: 0);
53 if (rv != tests[i].retval)
54 {
55 printf (format: "regexec %zd unexpected value %d != %d\n",
56 i, rv, tests[i].retval);
57 ret = 1;
58 }
59 regfree (preg: &r);
60 }
61 return ret;
62}
63

source code of glibc/posix/bug-regex27.c