/* Zero. */
ASSERT (roundl (0.0L) == 0.0L);
- ASSERT (!signbit (roundl (0.0L)));
ASSERT (roundl (minus_zerol) == 0.0L);
- ASSERT (!!signbit (minus_zerol) == !!signbit (roundl (minus_zerol)));
/* Positive numbers. */
ASSERT (roundl (0.3L) == 0.0L);
ASSERT (roundl (0.5L) == 1.0L);