breaks out of the loop prematurely, it needs to free it with free(). */
#define PIVOT_AXIS_FOR_EACH(INDEXES, AXIS) \
for ((INDEXES) = NULL; \
breaks out of the loop prematurely, it needs to free it with free(). */
#define PIVOT_AXIS_FOR_EACH(INDEXES, AXIS) \
for ((INDEXES) = NULL; \