/* Test isatty() function.
Copyright (C) 2011 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 . */
#include
#include
#include "signature.h"
SIGNATURE_CHECK (isatty, int, (int));
#include
#include "macros.h"
int
main (void)
{
/* Test behaviour for invalid file descriptors. */
{
errno = 0;
ASSERT (isatty (-1) == 0);
ASSERT (errno == EBADF
|| errno == 0 /* seen on Solaris 10 */
);
}
{
errno = 0;
ASSERT (isatty (99) == 0);
ASSERT (errno == EBADF
|| errno == 0 /* seen on Solaris 10 */
);
}
return 0;
}