BMAP_BINIT_ONES
#define BMAP_IS_INIT_ONES(b) ((b)->bm_flags & BMAP_BINIT_ONES)
BMAP_SET_FLAGS(bmp, BMAP_BINIT_ONES);
BMAP_UNSET_FLAGS(bmp, BMAP_BINIT_ONES);
BMAP_SET_FLAGS(bmp, BMAP_BINIT_ONES);
BMAP_UNSET_FLAGS(bmp, BMAP_BINIT_ONES);