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Annotation of 43BSDReno/include/stdarg.h, revision 1.1.1.1

1.1       root        1: /*-
                      2:  * Copyright (c) 1990 The Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms are permitted provided
                      6:  * that: (1) source distributions retain this entire copyright notice and
                      7:  * comment, and (2) distributions including binaries display the following
                      8:  * acknowledgement:  ``This product includes software developed by the
                      9:  * University of California, Berkeley and its contributors'' in the
                     10:  * documentation or other materials provided with the distribution and in
                     11:  * all advertising materials mentioning features or use of this software.
                     12:  * Neither the name of the University nor the names of its contributors may
                     13:  * be used to endorse or promote products derived from this software without
                     14:  * specific prior written permission.
                     15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
                     16:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
                     17:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     18:  *
                     19:  *     @(#)stdarg.h    5.4 (Berkeley) 6/26/90
                     20:  */
                     21: 
                     22: typedef char *va_list;
                     23: 
                     24: #define        va_arg(ap, type) \
                     25:        ((type *)(ap += sizeof(type) < sizeof(int) ? \
                     26:                (abort(), 0) : sizeof(type)))[-1]
                     27: 
                     28: #define        va_end(ap)
                     29: 
                     30: #define        __va_promote(type) \
                     31:        (((sizeof(type) + sizeof(int) - 1) / sizeof(int)) * sizeof(int))
                     32: 
                     33: #define        va_start(ap, last) \
                     34:        (ap = ((char *)&(last) + __va_promote(last)))

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