malachite_nz/integer/comparison/
partial_eq_natural.rs

1// Copyright © 2025 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::integer::Integer;
10use crate::natural::Natural;
11
12impl PartialEq<Natural> for Integer {
13    /// Determines whether an [`Integer`] is equal to a [`Natural`].
14    ///
15    /// # Worst-case complexity
16    /// $T(n) = O(n)$
17    ///
18    /// $M(n) = O(1)$
19    ///
20    /// where n = `min(self.significant_bits(), other.significant_bits())`
21    ///
22    /// # Examples
23    /// ```
24    /// use malachite_nz::integer::Integer;
25    /// use malachite_nz::natural::Natural;
26    ///
27    /// assert!(Integer::from(123) == Natural::from(123u32));
28    /// assert!(Integer::from(123) != Natural::from(5u32));
29    /// ```
30    fn eq(&self, other: &Natural) -> bool {
31        self.sign && self.abs == *other
32    }
33}
34
35impl PartialEq<Integer> for Natural {
36    /// Determines whether a [`Natural`] is equal to an [`Integer`].
37    ///
38    /// # Worst-case complexity
39    /// $T(n) = O(n)$
40    ///
41    /// $M(n) = O(1)$
42    ///
43    /// where n = `min(self.significant_bits(), other.significant_bits())`
44    ///
45    /// # Examples
46    /// ```
47    /// use malachite_nz::integer::Integer;
48    /// use malachite_nz::natural::Natural;
49    ///
50    /// assert!(Natural::from(123u32) == Integer::from(123));
51    /// assert!(Natural::from(123u32) != Integer::from(5));
52    /// ```
53    fn eq(&self, other: &Integer) -> bool {
54        other.sign && *self == other.abs
55    }
56}
malachite_nz/integer/comparison/partial_eq_natural.rs

malachite_nz/integer/comparison/
partial_eq_natural.rs
