malachite_nz/gaussian_integer/comparison/partial_eq_primitive_float.rs
1// Copyright © 2026 Mikhail Hogrefe
2//
3// This file is part of Malachite.
4//
5// Malachite is free software: you can redistribute it and/or modify it under the terms of the GNU
6// Lesser General Public License (LGPL) as published by the Free Software Foundation; either version
7// 3 of the License, or (at your option) any later version. See <https://www.gnu.org/licenses/>.
8
9use crate::gaussian_integer::GaussianInteger;
10
11macro_rules! impl_float {
12 ($t: ident) => {
13 impl PartialEq<$t> for GaussianInteger {
14 /// Determines whether a [`GaussianInteger`] is equal to a primitive float.
15 ///
16 /// No [`GaussianInteger`] is equal to an infinity or NaN.
17 ///
18 /// # Worst-case complexity
19 /// $T(n) = O(n)$
20 ///
21 /// $M(n) = O(1)$
22 ///
23 /// where $T$ is time, $M$ is additional memory, and $n$ is
24 /// `self.real.significant_bits()`.
25 ///
26 /// # Examples
27 /// See [here](super::partial_eq_primitive_float#partial_eq).
28 #[inline]
29 fn eq(&self, other: &$t) -> bool {
30 self.imaginary == 0u32 && self.real == *other
31 }
32 }
33
34 impl PartialEq<GaussianInteger> for $t {
35 /// Determines whether a primitive float is equal to a [`GaussianInteger`].
36 ///
37 /// No infinity or NaN is equal to a [`GaussianInteger`].
38 ///
39 /// # Worst-case complexity
40 /// $T(n) = O(n)$
41 ///
42 /// $M(n) = O(1)$
43 ///
44 /// where $T$ is time, $M$ is additional memory, and $n$ is
45 /// `other.real.significant_bits()`.
46 ///
47 /// # Examples
48 /// See [here](super::partial_eq_primitive_float#partial_eq).
49 #[inline]
50 fn eq(&self, other: &GaussianInteger) -> bool {
51 other == self
52 }
53 }
54 };
55}
56apply_to_primitive_floats!(impl_float);