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//! [`Default`] implementation for [`U512`], returning zero.
use super::U512;
/// Returns the zero value as the default for [`U512`].
///
/// All eight limbs are set to zero, consistent with the standard library
/// convention where numeric types default to zero.
///
/// # Examples
///
/// ```
/// use cnfy_uint::u512::U512;
///
/// let d: U512 = Default::default();
/// assert_eq!(d, U512::from_be_limbs([0; 8]));
/// ```
impl Default for U512 {
#[inline]
fn default() -> Self {
Self([0; 8])
}
}
#[cfg(test)]
mod ai_tests {
use super::*;
/// Default produces the zero value.
#[test]
fn default_is_zero() {
assert_eq!(U512::default(), U512::from_be_limbs([0; 8]));
}
/// Default equals explicit zero construction.
#[test]
fn default_matches_explicit_zero() {
assert_eq!(
U512::default(),
U512::from_be_limbs([0, 0, 0, 0, 0, 0, 0, 0])
);
}
}