/* Test for freopen implementation.

   Copyright (C) 2000-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   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 <mcheck.h>

#include <stdio.h>

#include <stdlib.h>

#include <wchar.h>

int

main (int argc, char *argv[])

{

  FILE *fp;

  mtrace ();

  if (argc < 2)

    exit (1);

  fp = fopen (argv[1], "w");

  if (fp == NULL)

    {

      puts ("fopen failed: %m");

      exit (1);

    }

  fputs ("Hello world (mb)\n", fp);

  fp = freopen (argv[1], "a+", fp);

  if (fp == NULL)

    {

      puts ("freopen failed: %m");

      exit (1);

    }

  fputws (L"Hello world (wc)\n", fp);

  fclose (fp);

  return 0;

}