ISSET
#define ISSET(A, N) ((A)[(N)/BITS_PER_MAP] & (1<<((N)%BITS_PER_MAP)))
#define ISSET(A, N) ((A)[(N)/BITS_PER_MAP] & (1<<((N)%BITS_PER_MAP)))
#define ISSET(opt) (sp->fts_options & (opt))
#define ISSET(opt) (sp->fts_options & (opt))
#define ISSET(opt) (sp->fts_options & (opt))
#undef ISSET
#define ISSET(v, n) ((v)[n])
#define ISSET(v, n) (((v) & ((unsigned long)1 << (n))) != 0)
#define ISSET(t, f) ((t) & (f))
#define ISSET(_v, _m) ((_v) & (_m))
#define ISSET(t, f) ((t) & (f))
#define ISSET(x, y) ((x) & (y))
#define ISSET(t, f) ((t) & (f))