posix/bug-regex2.c

   1 /* Test for memory handling in regex.
   2    Copyright (C) 2001-2019 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, see
  18    <https://www.gnu.org/licenses/>.  */
  19
  20 #include <sys/types.h>
  21 #include <mcheck.h>
  22 #include <regex.h>
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25
  26
  27 static const char text[] = "This is a test; this is a test";
  28
  29 int
  30 main (void)
  31 {
  32   regex_t re;
  33   regmatch_t rm[2];
  34   int n;
  35
  36   mtrace ();
  37
  38   n = regcomp (&re, "a test", REG_EXTENDED);
  39   if (n != 0)
  40     {
  41       char buf[500];
  42       regerror (n, &re, buf, sizeof (buf));
  43       printf ("regcomp failed: %s\n", buf);
  44       exit (1);
  45     }
  46
  47   for (n = 0; n < 20; ++n)
  48     regexec (&re, text, 2, rm, 0);
  49
  50   regfree (&re);
  51
  52   return 0;
  53 }