When using variable length argument lists (...), can you do anything besides step forward through va_list?
<p>If each invocation of va_arg modifies the object declared with va_list so that the object points to the next argument in the list, is there any way to step back so that it points to the previous one, jump back to the first one, jump to the end? Go three quarters of the way though the list and then... you get the idea. Or is it a once passed it's gone type thing?</p>
