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#include <regex.h>
#include <stdio.h>
#include <string.h>
#include <libc-diag.h>
#define str "civic"
#define N 10
static const char *expected[N] =
{
str, "c", "i", "", "", "", "", "", "", ""
};
static int
do_test (void)
{
regex_t rbuf;
static const char pat[] = "\
^(.?)(.?)(.?)(.?)(.?)(.?)(.?)(.?)(.?).?\\9\\8\\7\\6\\5\\4\\3\\2\\1$";
int err = regcomp (&rbuf, pat, REG_EXTENDED);
if (err != 0)
{
char errstr[300];
regerror (err, &rbuf, errstr, sizeof (errstr));
puts (errstr);
return err;
}
regmatch_t m[N];
err = regexec (&rbuf, str, N, m, 0);
if (err != 0)
{
puts ("regexec failed");
return 1;
}
int result = 0;
for (int i = 0; i < N; ++i)
if (m[i].rm_so == -1)
{
printf ("m[%d] unused\n", i);
result = 1;
}
else
{
int len = m[i].rm_eo - m[i].rm_so;
/* clang complains that adding a 'regoff_t' to a string does not
append to it, and the printf idea below is to make rm_so as
an offset to str. */
DIAG_PUSH_NEEDS_COMMENT_CLANG;
DIAG_IGNORE_NEEDS_COMMENT_CLANG (13, "-Wstring-plus-int");
printf ("m[%d] = \"%.*s\"\n", i, len, str + m[i].rm_so);
if (strlen (expected[i]) != len
|| memcmp (expected[i], str + m[i].rm_so, len) != 0)
result = 1;
DIAG_POP_NEEDS_COMMENT_CLANG;
}
return result;
}
#define TIMEOUT 30
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
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