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/*
* c_devnull - a custom function that does nothing
*
* Copyright (C) 1999-2004,2021,2023 Landon Curt Noll
*
* Calc is open software; you can redistribute it and/or modify it under
* the terms of the version 2.1 of the GNU Lesser General Public License
* as published by the Free Software Foundation.
*
* Calc 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.
*
* A copy of version 2.1 of the GNU Lesser General Public License is
* distributed with calc under the filename COPYING-LGPL. You should have
* received a copy with calc; if not, write to Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Under source code control: 1997/03/09 17:49:12
* File existed as early as: 1997
*
* chongo <was here> /\oo/\ http://www.isthe.com/chongo/
* Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
*/
/*
* ISO C requires a translation unit to contain at least one declaration,
* so we declare a global variable whose value is based on if CUSTOM is defined.
*/
#if defined(CUSTOM)
int c_devnull_allowed = 1; /* CUSTOM defined */
#else /* CUSTOM */
int c_devnull_allowed = 0; /* CUSTOM undefined */
#endif /* CUSTOM */
#if defined(CUSTOM)
#include "../have_unistd.h"
#if defined(HAVE_UNISTD_H)
#include <unistd.h>
#endif
#include "../have_const.h"
#include "../value.h"
#include "../custom.h"
#include "../have_unused.h"
#include "../banned.h" /* include after system header <> includes */
/*
* c_devnull - a custom function that does nothing
*
* This custom function does nothing. It is useful as a test hook
* for looking at the general interface.
*/
/*ARGSUSED*/
VALUE
c_devnull(char *UNUSED(name), int UNUSED(count), VALUE **UNUSED(vals))
{
VALUE result; /* what we will return */
/*
* return NULL
*/
result.v_type = V_NULL;
return result;
}
#endif /* CUSTOM */
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