voron

experimental ARM OS
git clone git://git.2f30.org/voron
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varg.h (516B)

      1 #ifndef __VARG_H
      2 #define __VARG_H
      3 
      4 #include <inttypes.h>
      5 
      6 #define __BND			(sizeof(uintptr_t) - 1)
      7 #define __bnd(X)		((sizeof(X) + __BND) & (~__BND))
      8 
      9 /* AAPCS p.28 */
     10 struct __va_list {
     11 	char *__ap;
     12 };
     13 
     14 typedef struct __va_list va_list;
     15 
     16 #define va_start(ap, last)	((void) ((ap).__ap = ((char*) &(last) + __bnd(last))))
     17 #define va_end(ap)		((void) 0)
     18 #define va_arg(ap, type)	(*(type*) (((ap).__ap += __bnd(type)) - __bnd(type)))
     19 #define va_copy(dest, src)	((void) ((dest).__ap = (src).__ap))
     20 
     21 #endif	/* __VARG_H */