1  /* Test we don't segfault on invalid UTF-8 sequence.
       2     Copyright (C) 2004-2023 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 <regex.h>
      21  #include <string.h>
      22  
      23  int
      24  main (void)
      25  {
      26    regex_t r;
      27  
      28    memset (&r, 0, sizeof (r));
      29    setlocale (LC_ALL, "de_DE.UTF-8");
      30    regcomp (&r, "[-a-z_0-9.]+@[-a-z_0-9.]+", REG_EXTENDED | REG_ICASE);
      31    regexec (&r, "\xe7\xb7\x95\xe7\x97", 0, NULL, 0);
      32    return 0;
      33  }