| 1 | /* varargs.h,v 1.2 2004/09/14 22:27:36 bird Exp */
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| 2 | /** @file
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| 3 | * FreeBSD 5.2
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| 4 | */
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| 5 | /*-
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| 6 | * Copyright (c) 1990, 1993
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| 7 | * The Regents of the University of California. All rights reserved.
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| 8 | * (c) UNIX System Laboratories, Inc.
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| 9 | * All or some portions of this file are derived from material licensed
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| 10 | * to the University of California by American Telephone and Telegraph
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| 11 | * Co. or Unix System Laboratories, Inc. and are reproduced herein with
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| 12 | * the permission of UNIX System Laboratories, Inc.
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| 13 | *
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| 14 | * Redistribution and use in source and binary forms, with or without
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| 15 | * modification, are permitted provided that the following conditions
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| 16 | * are met:
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| 17 | * 1. Redistributions of source code must retain the above copyright
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| 18 | * notice, this list of conditions and the following disclaimer.
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| 19 | * 2. Redistributions in binary form must reproduce the above copyright
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| 20 | * notice, this list of conditions and the following disclaimer in the
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| 21 | * documentation and/or other materials provided with the distribution.
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| 22 | * 3. All advertising materials mentioning features or use of this software
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| 23 | * must display the following acknowledgement:
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| 24 | * This product includes software developed by the University of
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| 25 | * California, Berkeley and its contributors.
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| 26 | * 4. Neither the name of the University nor the names of its contributors
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| 27 | * may be used to endorse or promote products derived from this software
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| 28 | * without specific prior written permission.
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| 29 | *
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| 30 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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| 31 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 32 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 33 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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| 34 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 35 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 36 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 37 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 38 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 39 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 40 | * SUCH DAMAGE.
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| 41 | *
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| 42 | * @(#)varargs.h 8.2 (Berkeley) 3/22/94
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| 43 | * $FreeBSD: src/sys/i386/include/varargs.h,v 1.8 1999/08/28 00:44:27 peter Exp $
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| 44 | */
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| 45 |
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| 46 | #ifndef _VARARGS_H_
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| 47 | #define _VARARGS_H_
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| 48 |
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| 49 | typedef char *va_list;
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| 50 |
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| 51 | #define __va_size(type) \
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| 52 | (((sizeof(type) + sizeof(int) - 1) / sizeof(int)) * sizeof(int))
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| 53 |
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| 54 | #ifdef __GNUC__
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| 55 | #define va_alist __builtin_va_alist
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| 56 | #endif
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| 57 | #if __GNUC__ > 1
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| 58 | #define va_dcl int va_alist; ...
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| 59 | #else
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| 60 | #define va_dcl int va_alist;
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| 61 | #endif
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| 62 |
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| 63 | #define va_start(ap) \
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| 64 | ((ap) = (va_list)&va_alist)
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| 65 |
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| 66 | #define va_arg(ap, type) \
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| 67 | (*(type *)((ap) += __va_size(type), (ap) - __va_size(type)))
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| 68 |
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| 69 | #define va_end(ap)
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| 70 |
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| 71 | #endif /* !_VARARGS_H_ */
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