FROM_LOOP_MAX_NEEDED_TO
#ifndef FROM_LOOP_MAX_NEEDED_TO
&& FROM_LOOP_MIN_NEEDED_TO == FROM_LOOP_MAX_NEEDED_TO \
step->__max_needed_to = FROM_LOOP_MAX_NEEDED_TO;
&& FROM_LOOP_MAX_NEEDED_TO % FROM_LOOP_MIN_NEEDED_TO == 0)) \