CUT_TAIL          739 ext/racc/cparse/cparse.c         CUT_TAIL(v->vstack, len);
CUT_TAIL          742 ext/racc/cparse/cparse.c             CUT_TAIL(v->tstack, len);
CUT_TAIL          744 ext/racc/cparse/cparse.c         CUT_TAIL(v->state, len);