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38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
/* Copyright (C) 1994 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <ansidecl.h>
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#include <stdio.h>
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#include <unistd.h>
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static int
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DEFUN(check, (name, stream, fd), CONST char *name AND FILE *stream AND int fd)
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{
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int sfd = fileno (stream);
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printf ("(fileno (%s) = %d) %c= %d\n", name, sfd, sfd == fd ? '=' : '!', fd);
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return sfd != fd;
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}
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int
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DEFUN_VOID(main)
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{
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exit (check ("stdin", stdin, STDIN_FILENO) ||
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check ("stdout", stdout, STDOUT_FILENO) ||
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check ("stderr", stderr, STDERR_FILENO));
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}
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