1: #include <regex.h>
    2: #include <stdio.h>
    3: #include <string.h>
    4: 
    5: #define str "civic"
    6: 
    7: #define N 10
    8: static const char *expected[N] =
    9:   {
   10:     str, "c", "i", "", "", "", "", "", "", ""
   11:   };
   12: 
   13: static int
   14: do_test (void)
   15: {
   16:   regex_t rbuf;
   17:   static const char pat[] = "\
   18: ^(.?)(.?)(.?)(.?)(.?)(.?)(.?)(.?)(.?).?\\9\\8\\7\\6\\5\\4\\3\\2\\1$";
   19: 
   20:   int err = regcomp (&rbuf, pat, REG_EXTENDED);
   21:   if (err != 0)
   22:     {
   23:       char errstr[300];
   24:       regerror (err, &rbuf, errstr, sizeof (errstr));
   25:       puts (errstr);
   26:       return err;
   27:     }
   28: 
   29:   regmatch_t m[N];
   30:   err = regexec (&rbuf, str, N, m, 0);
   31:   if (err != 0)
   32:     {
   33:       puts ("regexec failed");
   34:       return 1;
   35:     }
   36: 
   37:   int result = 0;
   38:   for (int i = 0; i < N; ++i)
   39:     if (m[i].rm_so == -1)
   40:       {
   41:         printf ("m[%d] unused\n", i);
   42:         result = 1;
   43:       }
   44:     else
   45:       {
   46:         int len = m[i].rm_eo - m[i].rm_so;
   47: 
   48:         printf ("m[%d] = \"%.*s\"\n", i, len, str + m[i].rm_so);
   49: 
   50:         if (strlen (expected[i]) != len
   51:             || memcmp (expected[i], str + m[i].rm_so, len) != 0)
   52:           result = 1;
   53:       }
   54: 
   55:   return result;
   56: }
   57: 
   58: #define TIMEOUT 30
   59: #define TEST_FUNCTION do_test ()
   60: #include "../test-skeleton.c"