FD_SET             22 ext/-test-/win32/fd_setsize/fd_setsize.c     FD_SET(sd, &read);
FD_SET             23 ext/-test-/win32/fd_setsize/fd_setsize.c     FD_SET(sd, &write);
FD_SET             24 ext/-test-/win32/fd_setsize/fd_setsize.c     FD_SET(sd, &error);
FD_SET             41 ext/-test-/win32/fd_setsize/fd_setsize.c 	FD_SET(sd, &set);
FD_SET            353 include/ruby/intern.h #define rb_fd_set(n, f)	FD_SET((n), (f))
FD_SET           3491 thread.c           FD_SET(n, fds->fdset);
FD_SET           2659 win32/win32.c      FD_SET(fd, set);