1  /* Test setting the error indicator of a stream.
       2     Copyright (C) 2007, 2009-2023 Free Software Foundation, Inc.
       3  
       4     This program is free software: you can redistribute it and/or modify
       5     it under the terms of the GNU General Public License as published by
       6     the Free Software Foundation, either version 3 of the License, or
       7     (at your option) any later version.
       8  
       9     This program is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      12     GNU General Public License for more details.
      13  
      14     You should have received a copy of the GNU General Public License
      15     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
      16  
      17  /* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
      18  
      19  #include <config.h>
      20  
      21  #include "fseterr.h"
      22  
      23  #include <stdio.h>
      24  #include <stdlib.h>
      25  
      26  int
      27  main ()
      28  {
      29    /* All streams are initially created with the error indicator cleared.  */
      30    if (ferror (stdout))
      31      abort ();
      32  
      33    /* Verify that fseterr() works.  */
      34    fseterr (stdout);
      35    if (!ferror (stdout))
      36      abort ();
      37  
      38    /* Verify fseterr's effect can be undone by clearerr().  */
      39    clearerr (stdout);
      40    if (ferror (stdout))
      41      abort ();
      42  
      43    return 0;
      44  }