#define __TRACKER_OPERATOR =
#define __TRACKER_NOOP __TRACKER_NOOP_RIGHTHAND_EQUAL
#include "tracker_operator.hpp"
#undef __TRACKER_OPERATOR
#undef __TRACKER_NOOP

#define __TRACKER_OPERATOR +=
#define __TRACKER_NOOP __TRACKER_NOOP_RIGHTHAND_ZERO
#include "tracker_operator.hpp"
#undef __TRACKER_OPERATOR
#undef __TRACKER_NOOP