b4dcc8bb37
since it is impossible to distinguish unpromoted types from small (struct) types. Renamed __va_promote() to __va_size() since it is related to sizes of args on the stack and not to promotion. PR: 3884 Submitted by: mostly by arnej@math.ntnu.no (Arne Henrik Juul) Obtained from: name of__va_size and some parentheses fixes from NetBSD
59 lines
2.3 KiB
C
59 lines
2.3 KiB
C
/*-
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)stdarg.h 8.1 (Berkeley) 6/10/93
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* $Id: stdarg.h,v 1.8 1997/02/22 09:35:17 peter Exp $
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*/
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#ifndef _STDARG_H_
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#define _STDARG_H_
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typedef char *va_list;
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#define __va_size(type) \
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(((sizeof(type) + sizeof(int) - 1) / sizeof(int)) * sizeof(int))
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#ifdef __GNUC__
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#define va_start(ap, last) \
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((ap) = (va_list)__builtin_next_arg(last))
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#else
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#define va_start(ap, last) \
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((ap) = (va_list)&(last) + __va_size(last))
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#endif
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#define va_arg(ap, type) \
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(*(type *)((ap) += __va_size(type), (ap) - __va_size(type)))
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#define va_end(ap)
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#endif /* !_STDARG_H_ */
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