6 #define va_start(list, start) list = (char *)(&(start)+1)
8 #define va_arg(list, mode) (sizeof(mode)==1 ? ((mode *) (list += 4))[-4] : \
9 sizeof(mode)==2 ? ((mode *) (list += 4))[-2] : ((mode *) (list += sizeof(mode)))[-1])
10 #define va_copy(dst, src) ((dst) = (src))