text: /* Test closing a file or socket.
     Copyright (C) 2011-2014 Free Software Foundation, Inc.
  
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 3 of the License, or
     (at your option) any later version.
  
     This program 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 General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  
  #include <config.h>
  
  #include <unistd.h>
  
  #include "signature.h"
  SIGNATURE_CHECK (close, int, (int));
  
  #include <errno.h>
  
  #include "macros.h"
  
  int
  main (void)
  {
    /* Test behaviour for invalid file descriptors.  */
    {
      errno = 0;
      ASSERT (close (-1) == -1);
      ASSERT (errno == EBADF);
    }
    {
      close (99);
      errno = 0;
      ASSERT (close (99) == -1);
      ASSERT (errno == EBADF);
    }
  
    return 0;
  }
  