ULLONG_MAX
#define ULLONG_MAX __ULLONG_MAX /* max for an unsigned long long */
# define ULLONG_MAX ((ULONGLONG_T)(-1))
# define ULLONG_MAX (LLONG_MAX * 2ull + 1)
#undef ULLONG_MAX
#define ULLONG_MAX 18446744073709551615ULL
#define ULLONG_MAX (~0ULL)
#define ULLONG_MAX 18446744073709551615ULL