85 #define howmany(x,y)	(((x)+((y)-1))/(y))  argument
99 # define __FDS_BITS(p)  ((p)->__X_FDS_BITS)  argument
102 #define __XFDS_BITS(p, n) (__FDS_BITS(p))[n]  argument
105 #define FD_SET(n, p)    (__XFDS_BITS(p, ((n)/NFDBITS)) |= ((fd_mask)1 << ((n) % NFDBITS)))  argument
108 #define FD_CLR(n, p)    (__XFDS_BITS((p), ((n)/NFDBITS)) &= ~((fd_mask)1 << ((n) % NFDBITS)))  argument
111 #define FD_ISSET(n, p)  ((__XFDS_BITS((p), ((n)/NFDBITS))) & ((fd_mask)1 << ((n) % NFDBITS)))  argument
114 #define FD_ZERO(p)      bzero((char *)(p), sizeof(*(p)))  argument
122 #define XFD_ANYSET(p) \  argument
167 #define XFD_SETCOUNT(p)	(((fd_set FAR *)(p))->fd_count)  argument
168 #define XFD_FD(p,i) (((fd_set FAR *)(p))->fd_array[i])  argument
169 #define XFD_ANYSET(p)	XFD_SETCOUNT(p)  argument