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/*
Copyright 2024 Owain Davies
SPDX-License-Identifier: Apache-2.0 OR MIT
*/
use crate::Arbi;
impl Arbi {
/// Return `true` if this integer is zero, `false` otherwise.
///
/// # Examples
/// ```
/// use arbi::Arbi;
/// let zero = Arbi::zero();
/// assert!(zero.is_zero());
/// let one = Arbi::one();
/// assert!(!one.is_zero());
/// let neg_one = Arbi::neg_one();
/// assert!(!neg_one.is_zero());
/// ```
///
/// # Complexity
/// \\( O(1) \\)
#[inline(always)]
pub fn is_zero(&self) -> bool {
self.vec.is_empty()
}
}
#[cfg(test)]
mod tests {
use crate::Arbi;
#[test]
fn test_is_zero() {
let zero = Arbi::zero();
assert!(zero.is_zero());
let one = Arbi::one();
assert!(!one.is_zero());
let neg_one = Arbi::neg_one();
assert!(!neg_one.is_zero());
}
}