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// Copyright © 2026 Mikhail Hogrefe
//
// This file is part of Malachite.
//
// Malachite is free software: you can redistribute it and/or modify it under the terms of the GNU
// Lesser General Public License (LGPL) as published by the Free Software Foundation; either version
// 3 of the License, or (at your option) any later version. See <https://www.gnu.org/licenses/>.
use crate::Float;
use malachite_nz::gaussian_integer::GaussianInteger;
impl PartialEq<GaussianInteger> for Float {
/// Determines whether a [`Float`] is equal to a [`GaussianInteger`].
///
/// $\infty$, $-\infty$, and NaN are not equal to any [`GaussianInteger`]. Both the [`Float`]
/// zero and the [`Float`] negative zero are equal to the [`GaussianInteger`] zero.
///
/// # Worst-case complexity
/// $T(n) = O(n)$
///
/// $M(n) = O(1)$
///
/// where $T$ is time, $M$ is additional memory, and $n$ is `min(self.significant_bits(),
/// other.real.significant_bits())`.
///
/// # Examples
/// ```
/// use malachite_float::Float;
/// use malachite_nz::gaussian_integer::GaussianInteger;
/// use std::str::FromStr;
///
/// assert!(Float::from(123) == GaussianInteger::from(123));
/// assert!(Float::from(-123) == GaussianInteger::from(-123));
/// assert!(Float::from(123) != GaussianInteger::from_str("123+i").unwrap());
/// ```
fn eq(&self, other: &GaussianInteger) -> bool {
other.imaginary == 0u32 && *self == other.real
}
}
impl PartialEq<Float> for GaussianInteger {
/// Determines whether a [`GaussianInteger`] is equal to a [`Float`].
///
/// No [`GaussianInteger`] is equal to $\infty$, $-\infty$, or NaN. The [`GaussianInteger`] zero
/// is equal to both the [`Float`] zero and the [`Float`] negative zero.
///
/// # Worst-case complexity
/// $T(n) = O(n)$
///
/// $M(n) = O(1)$
///
/// where $T$ is time, $M$ is additional memory, and $n$ is `min(self.real.significant_bits(),
/// other.significant_bits())`.
///
/// # Examples
/// ```
/// use malachite_float::Float;
/// use malachite_nz::gaussian_integer::GaussianInteger;
/// use std::str::FromStr;
///
/// assert!(GaussianInteger::from(123) == Float::from(123));
/// assert!(GaussianInteger::from(-123) == Float::from(-123));
/// assert!(GaussianInteger::from_str("123+i").unwrap() != Float::from(123));
/// ```
fn eq(&self, other: &Float) -> bool {
self.imaginary == 0u32 && self.real == *other
}
}