DRF_MW_SPANS
((DRF_MW_SPANS((o),drf) ? \
if (DRF_MW_SPANS((o),drf)) \
#define DRF_LW_HI(o,drf) (DRF_MW_SPANS((o),drf) ? (DRF_MW_SIZE(o) - 1) : DRF_HW_HI((o),drf))