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1 | /*- |
2 | * Copyright (c) 1990 The Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * %sccs.include.redist.c% | |
6 | * | |
31ebf403 | 7 | * @(#)stdarg.h 5.5 (Berkeley) %G% |
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8 | */ |
9 | ||
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10 | #ifndef _STDARG_H |
11 | #define _STDARG_H | |
12 | ||
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13 | typedef char *va_list; |
14 | ||
c98fe9aa | 15 | #define va_arg(ap, type) \ |
0f72c2ef | 16 | ((type *)(ap += sizeof(type) < sizeof(int) ? \ |
b197dab6 | 17 | (abort(), 0) : sizeof(type)))[-1] |
0f72c2ef | 18 | |
c98fe9aa | 19 | #define va_end(ap) |
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20 | |
21 | #define __va_promote(type) \ | |
22 | (((sizeof(type) + sizeof(int) - 1) / sizeof(int)) * sizeof(int)) | |
23 | ||
c98fe9aa | 24 | #define va_start(ap, last) \ |
0f72c2ef | 25 | (ap = ((char *)&(last) + __va_promote(last))) |
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26 | |
27 | #endif /* !_STDARG_H */ |