/* NBITS is the size of the bitset. More than NBITS bits might be set. */
# define Sbitset__ones(SELF, NBITS) \
do { \
memset (SELF, UCHAR_MAX, Sbitset__nbytes (NBITS)); \
/* NBITS is the size of the bitset. More than NBITS bits might be set. */
# define Sbitset__ones(SELF, NBITS) \
do { \
memset (SELF, UCHAR_MAX, Sbitset__nbytes (NBITS)); \