source: trunk/src/emx/include/386/stdarg.h@ 1134

/*-
 * Copyright (c) 2002 David E. O'Brien.  All rights reserved.
 * Copyright (c) 1991, 1993
 *      The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *      @(#)stdarg.h    8.1 (Berkeley) 6/10/93
 * $FreeBSD: src/sys/i386/include/stdarg.h,v 1.18 2002/11/27 16:28:18 obrien Exp $
 */

/** @file
 * FreeBSD 5.1
 * @changed bird: EMXisms.
 */

#ifndef _MACHINE_STDARG_H_
#define _MACHINE_STDARG_H_

#include <sys/cdefs.h>
#include <sys/_types.h>

#if !defined(_VA_LIST_DECLARED) && !defined(_VA_LIST) /* bird: emx */
#define _VA_LIST_DECLARED
#define _VA_LIST                        /* bird: emx */
typedef __va_list       va_list;
#endif

#if defined(__GNUC__) && (__GNUC__ == 2 && __GNUC_MINOR__ > 95 || __GNUC__ >= 3)

#define va_start(ap, last) \
        __builtin_stdarg_start((ap), (last))

#define va_arg(ap, type) \
        __builtin_va_arg((ap), type)

#if __ISO_C_VISIBLE >= 1999
#define va_copy(dest, src) \
        __builtin_va_copy((dest), (src))
#endif

#define va_end(ap) \
        __builtin_va_end(ap)

#else   /* ! __GNUC__ post GCC 2.95 */

#define __va_size(type) \
        (((sizeof(type) + sizeof(int) - 1) / sizeof(int)) * sizeof(int))

#ifdef __GNUC__
#define va_start(ap, last) \
        ((ap) = (va_list)__builtin_next_arg(last))
#else   /* non-GNU compiler */
#define va_start(ap, last) \
        ((ap) = (va_list)&(last) + __va_size(last))
#endif  /* __GNUC__ */

#define va_arg(ap, type) \
        (*(type *)((ap) += __va_size(type), (ap) - __va_size(type)))

#define va_end(ap)

#endif /* __GNUC__ post GCC 2.95 */

#endif /* !_MACHINE_STDARG_H_ */