NIFBITS            90 netinet6/ip6_mroute.h 	if_mask	ifs_bits[howmany(IF_SETSIZE, NIFBITS)];
NIFBITS            93 netinet6/ip6_mroute.h #define	IF_SET(n, p)	((p)->ifs_bits[(n)/NIFBITS] |= (1 << ((n) % NIFBITS)))
NIFBITS            94 netinet6/ip6_mroute.h #define	IF_CLR(n, p)	((p)->ifs_bits[(n)/NIFBITS] &= ~(1 << ((n) % NIFBITS)))
NIFBITS            95 netinet6/ip6_mroute.h #define	IF_ISSET(n, p)	((p)->ifs_bits[(n)/NIFBITS] & (1 << ((n) % NIFBITS)))