stdarg.h revision 114870
1/*- 2 * Copyright (c) 2002 David E. O'Brien. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 3. Neither the name of the University nor the names of its contributors 13 * may be used to endorse or promote products derived from this software 14 * without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD: head/sys/amd64/include/stdarg.h 114870 2003-05-10 00:55:15Z peter $ 29 */ 30 31#ifndef _MACHINE_STDARG_H_ 32#define _MACHINE_STDARG_H_ 33 34#include <sys/cdefs.h> 35#include <sys/_types.h> 36 37#ifndef _VA_LIST_DECLARED 38#define _VA_LIST_DECLARED 39typedef __va_list va_list; 40#endif 41 42#if defined(__GNUC__) 43#define va_start(ap, last) \ 44 __builtin_stdarg_start((ap), (last)) 45 46#define va_arg(ap, type) \ 47 __builtin_va_arg((ap), type) 48 49#if __ISO_C_VISIBLE >= 1999 50#define va_copy(dest, src) \ 51 __builtin_va_copy((dest), (src)) 52#endif 53 54#define va_end(ap) \ 55 __builtin_va_end(ap) 56 57#elif defined(lint) 58/* Provide a fake implementation for lint's benefit */ 59#define __va_size(type) \ 60 (((sizeof(type) + sizeof(long) - 1) / sizeof(long)) * sizeof(long)) 61#define va_start(ap, last) \ 62 ((ap) = (va_list)&(last) + __va_size(last)) 63#define va_arg(ap, type) \ 64 (*(type *)((ap) += __va_size(type), (ap) - __va_size(type))) 65#define va_end(ap) 66 67#endif 68 69#endif /* !_MACHINE_STDARG_H_ */ 70