1/* Test for re_match with non-zero start.
2 Copyright (C) 2002-2022 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 <stdio.h>
21#include <string.h>
22#include <regex.h>
23
24int
25main (void)
26{
27 struct re_pattern_buffer regex;
28 struct re_registers regs;
29 const char *s;
30 int match;
31 int result = 0;
32
33 regs.num_regs = 1;
34 memset (&regex, '\0', sizeof (regex));
35 s = re_compile_pattern (pattern: "[abc]*d", length: 7, buffer: &regex);
36 if (s != NULL)
37 {
38 puts (s: "re_compile_pattern return non-NULL value");
39 result = 1;
40 }
41 else
42 {
43 match = re_match (buffer: &regex, String: "foacabdxy", length: 9, start: 2, regs: &regs);
44 if (match != 5)
45 {
46 printf (format: "re_match returned %d, expected 5\n", match);
47 result = 1;
48 }
49 else if (regs.start[0] != 2 || regs.end[0] != 7)
50 {
51 printf (format: "re_match returned %d..%d, expected 2..7\n",
52 regs.start[0], regs.end[0]);
53 result = 1;
54 }
55 puts (s: " -> OK");
56 }
57
58 return result;
59}
60

source code of glibc/posix/bug-regex10.c