1 /*- 2 * Copyright (c) 2002 David E. O'Brien. All rights reserved. 3 * Copyright (c) 1991, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by the University of 17 * California, Berkeley and its contributors. 18 * 4. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)stdarg.h 8.1 (Berkeley) 6/10/93 35 * $FreeBSD$ 36 */ 37 38 #ifndef _STDARG_H_ 39 #define _STDARG_H_ 40 41 #include <machine/ansi.h> 42 43 typedef _BSD_VA_LIST_ va_list; 44 45 #if defined(__GNUC__) && (__GNUC__ == 2 && __GNUC_MINOR__ > 95 || __GNUC__ >= 3) 46 47 #define va_start(ap, last) \ 48 __builtin_stdarg_start((ap), (last)) 49 50 #define va_arg(ap, type) \ 51 __builtin_va_arg((ap), type) 52 53 #define va_end(ap) \ 54 __builtin_va_end(ap) 55 56 #else /* ! __GNUC__ post GCC 2.95 */ 57 58 #ifdef __GNUC__ 59 60 #define __va_size(type) \ 61 (((sizeof(type) + sizeof(int) - 1) / sizeof(int)) * sizeof(int)) 62 63 #define va_start(ap, last) \ 64 ((ap) = (va_list)__builtin_next_arg(last)) 65 #else 66 #define va_start(ap, last) \ 67 ((ap) = (va_list)&(last) + __va_size(last)) 68 #endif 69 70 #define va_arg(ap, type) \ 71 (*(type *)((ap) += __va_size(type), (ap) - __va_size(type))) 72 73 #define va_end(ap) 74 75 #endif /* __GNUC__ post GCC 2.95 */ 76 77 #endif /* !_STDARG_H_ */ 78