glibc/posix/bug-regex8.c

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/* Test for the STOP parameter of re_match_2 and re_search_2.
Copyright (C) 2002-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Stepan Kasal <kasal@math.cas.cz>, 2002.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <regex.h>
int
main (void)
{
struct re_pattern_buffer regex;
const char *s;
int match[4];
memset (&regex, '\0', sizeof (regex));
s = re_compile_pattern ("xy$", 3, &regex);
if (s != NULL)
{
puts ("failed to compile pattern \"xy$\"");
return 1;
}
else
match[0] = re_match_2(&regex,"xyz",3,NULL,0,0,NULL,2);
free (regex.buffer);
memset (&regex, '\0', sizeof (regex));
s = re_compile_pattern ("xy\\>", 4, &regex);
if (s != NULL)
{
puts ("failed to compile pattern \"xy\\>\"");
return 1;
}
else
match[1] = re_search_2(&regex,"xyz",3,NULL,0,0,2,NULL,2);
free (regex.buffer);
memset (&regex, '\0', sizeof (regex));
s = re_compile_pattern ("xy \\<", 5, &regex);
if (s != NULL)
{
puts ("failed to compile pattern \"xy \\<\"");
return 1;
}
else
{
match[2] = re_match_2(&regex,"xy ",4,NULL,0,0,NULL,3);
match[3] = re_match_2(&regex,"xy z",4,NULL,0,0,NULL,3);
}
if (match[0] != -1 || match[1] != -1 || match[2] != -1 || match[3] != 3)
{
printf ("re_{match,search}_2 returned %d,%d,%d,%d, expected -1,-1,-1,3\n",
match[0], match[1], match[2], match[3]);
return 1;
}
puts (" -> OK");
return 0;
}